I. INTRODUCTION
After a jury found Arthur Lee Gales, Jr., guilty of two counts of first degree murder and one count of attempted second degree murder, the trial judge conducted a sentencing hearing, made
*600
factual findings, and sentenced Gales to death on each count of first degree murder and to not less than 50 nor more than 50 years’ imprisonment on the count of attempted second degree murder. This is an automatic direct appeal from the death sentences as required by Neb. Rev. Stat. § 29-2525 (Cum. Supp. 2002). During the pendency of the appeal, but before it was briefed and argued, the U.S. Supreme Court decided
Ring
v.
Arizona,
II. FACTS AND PROCEDURAL HISTORY
A three-count information was filed against Gales on May 22, 2001. Count I charged Gales with first degree murder based on an allegation that on or about November 12, 2000, he purposely and with deliberate and premeditated malice or during the perpetration of a first degree sexual assault killed Latara Chandler (Latara). Count II charged first degree murder based upon an allegation that on or about November 12, Gales purposely and with deliberate and premeditated malice killed Tramar Chandler (Tramar). Count III charged Gales with attempted second degree murder, alleging that on or about November 12, he intentionally, but without premeditation, attempted to kill Judy Chandler (Chandler). Gales entered pleas of not guilty to all charges.
A jury trial commenced on August 20,2001. Evidence received at trial revealed that Gales was present with Chandler and her children, Latara and Tramar, at Chandler’s apartment in Omaha, Nebraska, between 10 and 11 p.m. on November 11,2000. On the following morning, Chandler was found badly beaten and incoherent near 15th and Grace Streets in Omaha. After Chandler was identified, police learned that she had children. At approximately 5:30 p.m. on November 12, police entered Chandler’s apartment *601 to check on the children and discovered 13-year-old Latara’s body, nude from the waist down, in a bedroom. Seven-year-old Tramar’s body was found with his torso positioned face up in the bathtub and his legs outside the bathtub. Autopsies revealed that Latara died as a result of manual strangulation and that Tramar died as a result of drowning and manual strangulation. The examining pathologist testified that each child had been subjected to at least 4 minutes of continuous compression of the neck before death. Latara had been sexually assaulted. The pathologist could not pinpoint the exact time of death for either child.
The State’s theory at trial was that Gales and Chandler left Chandler’s children at her apartment on the evening of November 11, 2000, and subsequently became involved in an altercation in which Gales severely beat Chandler and left her for dead. The State contended that Gales realized the children were witnesses who could place him with Chandler that evening and that he therefore returned to the apartment and killed them. Gales did not testify or offer evidence at trial and did not dispute the State’s general theory of how the deaths of the children occurred. His defense was that he was not the person who assaulted Chandler and killed the children. The State presented DNA evidence which linked Gales to both crime scenes and excluded other potential suspects.
On August 27, 2001, the jury returned a verdict finding Gales guilty of two counts of first degree murder and one count of attempted second degree murder. On August 28, the district court entered an “Order of Judgment of Conviction,” in which it accepted the verdict of the jury and adjudged Gales guilty on all three counts. The court scheduled a sentencing hearing for October 23.
Subsequently to entry of the judgment of conviction and prior to the sentencing hearing, Gales filed a motion challenging the constitutionality of the Nebraska capital sentencing statutes. He asserted that “[p]ursuant to
Jones
v.
United States,
The sentencing hearing was conducted by the judge who presided at Gales’ trial. On November 6, 2001, Gales appeared before the court for the imposition of sentence. The court issued a written order of sentence on that date in which it found that certain statutory aggravating circumstances existed. First, the court found that Gales was previously convicted of another crime involving the use or threat of violence to a person, the aggravating circumstance enumerated in Neb. Rev. Stat. § 29-2523(l)(a) (Cum. Supp. 2002), because Gales had prior convictions for armed sexual battery and strong-armed robbery. The court found this aggravating circumstance applicable to both counts of first degree murder.
Second, the court found that Gales committed the murders of both children in an effort to conceal his identity as the perpetrator of the attempted murder of Chandler, thus meeting aggravating circumstance § 29-2523(l)(b). Relying upon evidence produced at trial, the court concluded that Gales assaulted Chandler, left her for dead, and then returned to the apartment to kill the children because they were witnesses.
Third, the court found that the murder of Latara was “especially heinous, atrocious, cruel, or manifested exceptional depravity by ordinary standards of morality and intelligence,” so that aggravating circumstance § 29-2523(l)(d) was met. Relying upon evidence produced at trial, the court concluded that the sexual abuse inflicted upon Latara prior to her death combined with the manual strangulation were sufficient to satisfy this aggravator. The court concluded that this aggravating circumstance was not met as to the death of Tramar.
Finally, the court found that aggravating circumstance § 29-2523(1)(e), “[a]t the time the murder was committed, the offender also committed another murder,” was applicable to the deaths of both children. Relying upon evidence received at trial, the court found that Gales was present in Chandler’s apartment at 11 p.m. on November 11, 2000. The court further found that Gales was the man who witnesses indicated was inside the *603 apartment at 4 a.m. on November 12. Reasoning that no one reported seeing or hearing from the children after 11 p.m. on November 11, the court found that the children were murdered some time during the early morning hours of November 12.
In addressing mitigating circumstances, the court determined that no evidence supported a finding of any statutory mitigator. The court found evidence to support a nonstatutory mitigator that Gales maintained a strong relationship with his family. In balancing the aggravating and mitigating circumstances, the court concluded that the one mitigator did not approach or exceed the aggravators in either murder. The court then considered whether a sentence of death in either murder was excessive or disproportionate to the penalty imposed in similar cases and concluded that it was not. Accordingly, the court imposed consecutive sentences of death on each count of first degree murder and a sentence of imprisonment for a period of not less than 50 nor more than 50 years on the count of attempted second degree murder.
III.ASSIGNMENT OF ERROR
Gales’ sole assignment of error is that the district court “erred in denying appellant’s motions challenging the constitutionality of Nebraska Revised Statute Section 29-2519 (1995) et seq. and requesting a jury determination of sentencing issues.” He assigns no error with respect to the jury’s determination of guilt on the two counts of first degree murder, or with respect to his conviction and sentence on the one count of attempted second degree murder.
IV.STANDARD OF REVIEW
Whether a statute is constitutional is a question of law; accordingly, the Nebraska Supreme Court is obligated to reach a conclusion independent of the decision reached by the trial court.
State v. Gamez-Lira,
V.ANALYSIS
1. Background
The Sixth Amendment to the U.S. Constitution guarantees the right to “public trial, by an impartial jury” in criminal prosecutions. The Eighth Amendment to the U.S. Constitution forbids
*604
the infliction of “cruel and unusual punishments.” Both are made applicable to the states through the 14th Amendment. See,
Porter
v.
Nussle,
(a) Eighth Amendment Capital Sentencing Requirements
“Murder in the first degree” was first defined as a separate offense in Nebraska in 1873. Gen. Stat., ch. 2, § 3, p. 720 (1873). It was made punishable by death. 2 Comp. Laws, ch. 2, § 3, p. 647 (1866-77); Consol. Stat., ch. 1, § 5579, p. 1123 (1891);
Sundahl v. State,
The principle of unrestricted discretion to impose the death penalty met its constitutional demise in
Furman v. Georgia,
The Court subsequently characterized Furman as requiring that in order to minimize the risk that the death penalty would be imposed on a capriciously selected group of offenders, the decision to impose it had to be guided by standards so that the sentencing authority would focus on the particularized circumstances of the crime and the defendant.
Gregg
v.
Georgia,
In response to
Furman
v.
Georgia,
Nebraska’s statutory capital sentencing procedures which were in effect at the time that Gales was convicted and sentenced were substantially similar to those enacted following Furman. Under these procedures, the determination of whether the defendant should be sentenced to death or life imprisonment was required to be made following a sentencing hearing by the judge who presided over the trial or accepted the guilty plea, or by a three-judge sentencing panel. § 29-2520. Section 29-2521 further provided:
In the proceeding for determination of sentence, evidence may be presented as to any matter that the court deems relevant to sentence, and shall include matters relating to *607 any of the aggravating or mitigating circumstances set forth in section 29-2523. Any such evidence which the court deems to have probative value may be received. The state and the defendant or his counsel shall be permitted to present argument for or against sentence of death. The court shall set forth the general order of procedure at the outset of the sentence determination proceeding.
Section 29-2523, which was in effect at the time of Gales’ convictions and sentencing, provided:
The aggravating and mitigating circumstances referred to in sections 29-2521 and 29-2522 shall be as follows:
(1) Aggravating Circumstances:
(a) The offender was previously convicted of another murder or a crime involving the use or threat of violence to the person, or has a substantial prior history of serious assaultive or terrorizing criminal activity;
(b) The murder was committed in an effort to conceal the commission of a crime, or to conceal the identity of the perpetrator of such crime;
(c) The murder was committed for hire, or for pecuniary gain, or the defendant hired another to commit the murder for the defendant;
(d) The murder was especially heinous, atrocious, cruel, or manifested exceptional depravity by ordinary standards of morality and intelligence;
(e) At the time the murder was committed, the offender also committed another murder;
(f) The offender knowingly created a great risk of death to at least several persons;
(g) The victim was a public servant having lawful custody of the offender or another in the lawful performance of his or her official duties and the offender knew or should have known that the victim was a public servant performing his or her official duties;
(h) The murder was committed knowingly to disrupt or hinder the lawful exercise of any governmental function or the enforcement of the laws; or
(i) The victim was a law enforcement officer engaged in the lawful performance of his or her official duties as a law *608 enforcement officer and the offender knew or reasonably should have known that the victim was a law enforcement officer.
The facts upon which the applicability of an aggravating circumstance depends must be proved beyond a reasonable doubt.
(2) Mitigating Circumstances:
(a) The offender has no significant history of prior criminal activity;
(b) The offender acted under unusual pressures or influences or under the domination of another person;
(c) The crime was committed while the offender was under the influence of extreme mental or emotional disturbance;
(d) The age of the defendant at the time of the crime;
(e) The offender was an accomplice in the crime committed by another person and his or her participation was relatively minor;
(f) The victim was a participant in the defendant’s conduct or consented to the act; or
(g) At the time of the crime, the capacity of the defendant to appreciate the wrongfulness of his or her conduct or to conform his or her conduct to the requirements of law was impaired as a result of mental illness, mental defect, or intoxication.
Section 29-2522 provided:
After hearing all of the evidence and arguments in the sentencing proceeding, the judge or judges shall fix the sentence at either death or life imprisonment, but such determination shall be based upon the following considerations:
(1) Whether sufficient aggravating circumstances exist to justify imposition of a sentence of death;
(2) Whether sufficient mitigating circumstances exist which approach or exceed the weight given to the aggravating circumstances; or
(3) Whether the sentence of death is excessive or disproportionate to the penalty imposed in similar cases, considering both the crime and the defendant.
*609 In each case in which the court imposes the death sentence, the determination of the court shall be in writing and shall be supported by written findings of fact based upon the records of the trial and the sentencing proceeding, and referring to the aggravating and mitigating circumstances involved in its determination.
If an order is entered sentencing the defendant to death, a date for execution shall not be fixed until after the conclusion of the appeal provided for by section 29-2525.
The law further provided for automatic review of a death sentence by this court. § 29-2525.
Nebraska’s
post-Furman
v.
Georgia,
Nebraska’s capital sentencing scheme, as it existed at the time of Gales’ sentencing, differed from that of most other states in that it required a judge or panel of judges to decide whether a defendant convicted of a capital crime should be sentenced to
*610
death or life imprisonment. See § 29-2520. After
Furman, supra,
most state legislatures chose to place this responsibility on a jury. See, Ark. Code Ann. § 5-4-602 (1997); Cal. Penal Code Ann. § 190.3 (West 1999); Conn. Gen. Stat. § 53a-46a (2001); Ga. Code Ann. § 17-10-31.1 (1997); 720 111. Comp. Stat. Ann. § 5/9-l(d) (Lexis Cum. Supp. 2002); Kan. Stat. Ann. § 21-4624(b) (1995); Ky. Rev. Stat. Ann. § 532.025(l)(b) (Michie Cum. Supp. 2002); La. Code Crim. Proc. Ann., art. 905.1 (West 1997); Md. Ann. Code Crim. Law § 2-303(c) (2002); Miss. Code Ann. § 99-19-101 (2000); Mo. Ann. Stat. §§ 565.030 and 565.032 (West Supp. 2003); Nev. Rev. Stat. § 175.552 (2001); N.H. Rev. Stat. Ann. § 630:5(11) (1996); N.J. Stat. Ann. §2C:ll-3c (West Supp. 2002); N.M. Stat. Ann. § 31-20A-1 (Michie 2000); N.Y. Crim. Proc. Law §400.27 (McKinney Cum. Supp. 2003); N.C. Gen. Stat. § 15A-2000 (2002); Ohio Rev. Code Ann. § 2929.03 (West 2002); Okla. Stat. Ann. tit. 21, § 701.10(A) (West 2002); Ore. Rev. Stat. § 163.150 (2001); 42 Pa. Stat. Ann. § 9711 (West Cum. Supp. 2002); S.C. Code Ann. § 16-3-20(B) (West Cum. Supp. 2000); S.D. Codified Laws § 23A-27A-2 (Michie 1998); Tenn. Code Ann. § 39-13-204 (Supp. 2002); Tex. Crim. Proc. Code Ann. § 37.071 (Vernon Cum. Supp. 2003); Utah Code Ann. § 76-3-207 (Supp. 2002); Va. Code Ann. § 19.2-264.3 (2000); Wash. Rev. Code § 10.95.050 (2002); Wyo. Stat. Ann. § 6-2-102 (2001). Of the 38 states which authorized capital punishment at the time that
Ring
v.
Arizona,
After
Furman
v.
Georgia,
but it has never [been] suggested that jury sentencing is constitutionally required. And it would appear that judicial sentencing should lead, if anything, to even greater consistency in the imposition [of sentence] at the trial court level of capital punishment, since a trial judge is more experienced in sentencing than a jury, and therefore is better able to impose sentences similar to those imposed in analogous cases.
This court relied upon
Proffitt
in rejecting a challenge to Nebraska’s
post-Furman
capital sentencing scheme in
State
v.
Simants,
As we understand the federal and the state constitutional provisions, they do not require or even suggest that jury sentencing is constitutionally required. Whatever the relative merits of sentencing by a judge or jury may be, we need not consider them. Our concern is the constitutionality of the Nebraska system, under the federal and state Constitutions. *612 The relative merits of the one or the other is for legislative and not judicial determination.
Simants,
The U.S. Supreme Court revisited the Florida capital sentencing scheme in
Spaziano v.
Florida,
This Court’s decisions indicate that the discretion of the sentencing authority, whether judge or jury, must be limited and reviewable.... The sentencer is responsible for weighing the specific aggravating and mitigating circumstances the legislature has determined are necessary touchstones in determining whether death is the appropriate penalty. Thus, even if it is a jury that imposes the sentence, the “community’s voice” is not given free rein. The community’s voice is heard at least as clearly in the legislature when the death penalty is authorized and the particular circumstances in which death is appropriate are defined. . . .
We do not denigrate the significance of the jury’s role as a link between the community and the penal system and as a bulwark between the accused and the State. . . . The point is simply that the purpose of the death penalty is not frustrated by, or inconsistent with, a scheme in which the imposition of the penalty in individual cases is determined by a judge.
(Citations omitted.) (Emphasis supplied.)
Spaziano,
*613 In light of the facts that the Sixth Amendment does not require jury sentencing, that the demands of fairness and reliability in capital cases do not require it, and that neither the nature of, nor the purpose behind, the death penalty requires jury sentencing, we cannot conclude that placing responsibility on the trial judge to impose the sentence in a capital case is unconstitutional.
As the Court several times has made clear, we are unwilling to say that there is any one right way for a State to set up its capital sentencing scheme.
In
Hildwin v. Florida,
In
Enmund v. Florida,
The U.S. Supreme Court first considered a challenge to Arizona’s capital sentencing scheme in
Walton v. Arizona,
every finding of fact underlying the sentencing decision must be made by a jury, not by a judge, and that the Arizona scheme would be constitutional only if a jury decides what aggravating and mitigating circumstances are present in a given case and the trial judge then imposes sentence based on those findings.
(b) Sixth Amendment Right to Jury Determination of Facts Affecting Punishment
Due process of law requires the prosecution to prove beyond a reasonable doubt every fact necessary to constitute the crime charged.
In re Winship,
*616
However, in
Patterson
v.
New York,
The majority opinion in
McMillan
v.
Pennsylvania, 477
U.S. 79,
In
Almendarez-Torres
v.
United States,
However, a year later, in
Jones
v.
United States,
The next decision in this line of authority was
Apprendi v. New Jersey,
If a State can remove from the jury a factual determination that makes the difference between life and death, as Walton holds that it can, it is inconceivable why a State cannot do the same with respect to a factual determination that results in only a 10-year increase in the maximum sentence to which a defendant is exposed.
Apprendi,
2. Ring v. Arizona
Timothy Stuart Ring participated in an armored van robbery in Glendale, Arizona, in which the driver of the van was killed. At his trial, the jury was instructed on alternative charges of premeditated murder and felony murder. The jury reached a deadlock on the premeditated murder charge, but convicted Ring of felony murder. A separate sentencing hearing was then conducted by the trial judge, sitting without a jury, as required under Arizona’s capital sentencing statutes then in effect. See Ariz. Rev. Stat. Ann. § 13-703(C) (West Supp. 2001). Arizona law provided that the penalty for first degree murder was death or life imprisonment, but specified that the death penalty could be imposed only if the trial judge found at least 1 of 10 statutory “aggravating circumstancefs]” and “‘no mitigating circumstances sufficiently substantial to call for leniency.’ ”
Ring
v.
Arizona,
Based upon testimony at the sentencing hearing by one of Ring’s accomplices, the trial judge found that Ring was a major participant in the robbery and that he fired the fatal shot. The judge found that two statutory aggravating circumstances existed and that one nonstatutory mitigator existed but did not warrant leniency. Based upon these findings, Ring was sentenced to death.
On direct appeal to the Arizona Supreme Court, Ring argued on the basis of
Jones
v.
United States,
In Arizona, a defendant cannot be put to death solely on the basis of a jury’s verdict, regardless of the jury’s factual findings. The range of punishment allowed by law on the basis of the verdict alone is life imprisonment with the possibility of parole or imprisonment for “natural life” without the possibility of release. ... It is only after a subsequent adversarial sentencing hearing, at which the judge alone acts as the finder of the necessary statutory factual elements, that a defendant may be sentenced to death. . . . And even then a death sentence may not legally be imposed by the trial judge unless at least one aggravating factor is found to exist beyond a reasonable doubt. . . . Thus, when the state seeks the death penalty, a separate evidentiary hearing, without a jury, must be held; the death sentence becomes possible only after the trial judge makes a factual finding that at least one aggravating factor is present. The judge makes that finding on the basis of the evidence presented at trial and any other evidence presented at the aggravation/mitigation hearing.... If the judge finds an aggravating circumstance, he must then proceed to determine if there are any mitigating circumstances. ... If the judge finds mitigating circumstances, he must then weigh them against the aggravators and decide by “special verdict” whether a death sentence is appropriate.
(Citations omitted.)
State v. Ring,
The U.S. Supreme Court granted Ring’s petition for certiorari and reversed the judgment. The Court began its analysis with the premise, derived from the Arizona Supreme Court’s construction of that state’s capital sentencing laws, that “[bjased solely on the jury’s verdict finding Ring guilty of first-degree felony murder, the maximum punishment he could have received was life imprisonment.”
Ring v. Arizona,
that Walton and Apprendi are irreconcilable; our Sixth Amendment jurisprudence cannot be home to both. Accordingly, we overrule Walton to the extent that it allows a sentencing judge, sitting without a jury, to find an aggravating circumstance necessary for imposition of the death penalty. . . . Because Arizona’s enumerated aggravating factors operate as “the functional equivalent of an element of a greater offense,” Apprendi,530 U.S., at 494, n. 19 , the Sixth Amendment requires that they be found by a jury.
(Citation omitted.)
Ring,
3. Application of Ring v. Arizona to This Case
Walton
v.
Arizona,
The statutory capital sentencing procedures under which Gales was sentenced required the judge to base the sentence imposed on three considerations:
(1) Whether sufficient aggravating circumstances exist to justify imposition of a sentence of death;
(2) Whether sufficient mitigating circumstances exist which approach or exceed the weight given to the aggravating circumstances; or
(3) Whether the sentence of death is excessive or disproportionate to the penalty imposed in similar cases, considering both the crime and the defendant.
§ 29-2522. Gales argues that under
Ring v. Arizona,
[Ring] contends only that the Sixth Amendment required jury findings on the aggravating circumstances asserted against him. No aggravating circumstance related to past convictions in his case; Ring therefore does not challenge *623 Almendarez-Torres v. United States,523 U.S. 224 (1998), which held that the fact of prior conviction may be found by the judge even if it increases the statutory maximum sentence. He makes no Sixth Amendment claim with respect to mitigating circumstances. See Apprendi v. New Jersey,530 U.S. 466 , 490-491, n. 16 (2000) (noting “the distinction the Court has often recognized between facts in aggravation of punishment and facts in mitigation” (citation omitted)). Nor does he argue that the Sixth Amendment required the jury to make the ultimate determination whether to impose the death penalty. See Proffitt v. Florida,428 U.S. 242 , 252 (1976) (plurality opinion) (“[I]t has never [been] suggested that jury sentencing is constitutionally required”). He does not question the Arizona Supreme Court’s authority to reweigh the aggravating and mitigating circumstances after that court struck one aggravator. See Clemons v. Mississippi,494 U.S. 738 , 745 (1990). Finally, Ring does not contend that his indictment was constitutionally defective. See Apprendi,530 U.S., at 477, n. 3 (Fourteenth Amendment “has not . . . been construed to include the Fifth Amendment right to ‘presentment or indictment of a Grand Jury’ ”).
Ring,
While one member of the Court concurred in
Ring
based upon his opinion that “jury sentencing in capital cases is mandated by the Eighth Amendment,” no other Justice joined in this concurrence.
Ring,
In holding that such a right existed under Arizona’s capital sentencing scheme, the U.S. Supreme Court emphasized that while the statute authorized a maximum sentence of death for the offense of first degree murder, it required the finding of an aggravating circumstance before a death sentence could be imposed. Applying the principle of
Apprendi
v.
New Jersey,
530
*624
U.S. 466,
At the time of Gales’ trial and sentencing, Nebraska statutes classified murder in the first degree as a Class IA felony punishable by life imprisonment or a Class I felony punishable by death, depending upon the factual determinations made under §§ 29-2520 to 29-2524. See Neb. Rev. Stat. §§ 28-105(1) (Cum. Supp. 2002) and 28-303. Under these statutes, a death sentence could not be imposed absent the existence of at least one of the aggravating circumstances set forth in § 29-2523.
State
v.
Hunt,
It is clear that the jury made no explicit determination that any of the statutory aggravating circumstances existed in this case. Instead, that determination was made by a judge. This procedure violated the constitutional principle articulated in Ring, and Gales’ death sentences imposed on each count of first degree murder must therefore be vacated.
*625 4. Resentencing
This court lacks statutory authority to resentence a criminal defendant to death in a homicide case when we have found a reversible error in the sentencing proceedings. Reeves, supra. The parties agree that this cause must be remanded to the district court for resentencing based upon Ring error. They disagree, however, as to the law applicable to resentencing and the permissible scope thereof. On July 5, 2002, Gales filed in this court a motion to vacate his death sentence and a request for the imposition of a sentence of life imprisonment. In this filing, Gales stated:
The U.S. Supreme Court has recently determined that no one can be given a death sentence unless the sentence is imposed by a jury. Ring v. Arizona No. 01-488 slip op. (U.S.S. Court June 24, 2002). Since the appellant was sentenced by a single judge to a death sentence, and since his appeal was pending before this court at the time that Ring. supra, was decided, this [c]ourt should vacate the death sentence and impose a sentence of life imprisonment because the death sentence was incorrectly imposed.
The State filed a response in which it asserted that “[although Ring does not require jury sentencing, Ring does require jury fact finding in the penalty phase of a Nebraska first degree murder trial.” The State concluded:
The appropriate relief would be an order of remand to the district court to conduct a new penalty phase hearing in the following manner: (a) the summoning and selection of a jury, by the same means any criminal jury is summoned and selected when required by the 6th Amendment, to hear the State’s evidence of aggravating circumstances; (b) specific findings of the jury as to which, if any, of the statutory aggravating circumstances upon which evidence was offered by the State have been proven to exist beyond a reasonable doubt; (c) the dismissal of the jury once that fact finding is completed; and (d) the determination of an appropriate sentence by the trial court under §§ 29-2520 and 29-2522 based upon the factual findings of the jury and the record of that proceeding.
It was in this procedural posture that the case was originally briefed and argued to this court on November 5, 2002.
*626 On November 26, 2002, while this matter was under submission, the State filed a “Notice of Legislation” advising this court that during a special session, the Nebraska Legislature enacted 2002 Neb. Laws, L.B. 1, of the 97th Legislature, Third Special Session, with the emergency clause “to satisfy the new ó"1 Amendment requirements articulated in Ring" The State requested that this cause be remanded for resentencing pursuant to L.B. 1. Gales filed a written objection to this request in which he renewed his request that he be resentenced to life imprisonment. We ordered supplemental briefs on the issues raised by the State’s request that we remand for resentencing pursuant to L.B. 1.
(a)L.B. 1: Content
L.B. 1 was enacted with the emergency clause and signed by the Governor on November 22, 2002. The new legislation amends various statutes dealing with the offense of murder in the first degree, including the capital sentencing statutes codified in chapter 29, article 25, of the Nebraska Revised Statutes. Section 29-2519, which sets forth the Legislature’s statement of intent with respect to the capital sentencing statutes, is amended by § 10 of L.B. 1 to include the following additional language:
(2) The Legislature hereby finds and declares that:
(a) The decision of the United States Supreme Court in Ring v. Arizona (2002) requires that Nebraska revise its sentencing process in order to ensure that rights of persons accused of murder in the first degree, as required under the Sixth and Fourteenth Amendments of the United States Constitution, are protected;
(b) The changes made by this legislative bill are intended to be procedural only in nature and ameliorative of the state’s prior procedures for determination of aggravating circumstances in the sentencing process for murder in the first degree;
(c) The changes made by this legislative bill are not intended to alter the substantive provisions of sections 28-303 and 29-2520 to 29-2524;
(d) The aggravating circumstances defined in section 29-2523 have been determined by the United States Supreme Court to be “functional equivalents of elements *627 of a greater offense” for purposes of the defendant’s Sixth Amendment right, as applied to the states under the Fourteenth Amendment, to a jury determination of such aggravating circumstances, but the aggravating circumstances are not intended to constitute elements of the crime generally unless subsequently so required by the state or federal constitution; and
(e) To the extent that such can be applied in accordance with state and federal constitutional requirements, it is the intent of the Legislature that the changes to the murder in the first degree sentencing process made by this legislative bill shall apply to any murder in the first degree sentencing proceeding commencing on or after the effective date of this act.
Generally, L.B. 1 makes two significant changes in Nebraska’s capital sentencing procedure. First, it provides for an “aggravation hearing” following a determination of guilt in a first degree murder case, at which a jury determines whether aggravating circumstances alleged by the State exist, unless such determination by a jury is waived by the defendant. L.B. 1, § 11. Second, it removes the option of sentencing by the trial judge and requires sentencing by a panel of three judges. Id., § 12. L.B. 1 does not change the statutory definitions of aggravating and mitigating circumstances or the manner in which they are to be balanced. Id., §§ 14 and 15. However, L.B. 1 does amend the specified minimum penalty for a Class IA felony from “[ljife imprisonment” to “[l]ife imprisonment without parole.” Id., § 1. Finally, L.B. 1 includes a severability provision stating that “[i]f any section in this act or any part of any section is declared invalid or unconstitutional, the declaration shall not affect the validity or constitutionality of the remaining portions.” Id., § 18.
(b) L.B. 1: Application
As noted, in enacting L.B. 1, the Legislature expressly stated that it intended the changes to apply to all first degree murder sentencing proceedings commencing on or after November 23, 2002, the effective date of the amendment. L.B. 1, § 10. In his supplemental briefs, Gales makes several arguments why the provisions of L.B. 1 should not be applied in this case on *628 remand. We interpret these as facial challenges to the constitutionality of L.B. 1.
(i) Sixth Amendment/Apprendi Challenge
We initially address Gales’ argument that L.B. 1 fails to meet the Sixth Amendment requirements defined in
Apprendi
v.
New Jersey,
We reject both arguments. As noted above, we understand Ring as recognizing a Sixth Amendment right to a jury determination of the existence of aggravating circumstances which determine “death eligibility,” because in the absence of at least one such circumstance, the death penalty cannot be imposed. It is the determination of “death eligibility” which exposes the defendant to greater punishment, and such exposure triggers the Sixth Amendment right to jury determination as delineated in Apprendi and Ring. In contrast, the determination of mitigating circumstances, the balancing of aggravating circumstances against mitigating circumstances, and proportionality review are part of the “selection decision” in capital sentencing, which, under the current and prior statutes, occurs only after eligibility has been determined. See § 29-2522; L.B. 1, § 14. These determinations cannot increase the potential punishment to which a defendant is exposed as a consequence of the eligibility determination. Accordingly, we do not read either Apprendi or Ring to require that the determination of mitigating circumstances, *629 the balancing function, or proportionality review be undertaken by a jury.
Moreover, we note that the constitutionality of judicial sentencing was specifically upheld in that portion of
Walton v. Arizona,
Gales’ argument that provisions of L.B. 1 which require a sentencing panel to make use of a presentence investigation report are unconstitutional under
Apprendi v. New Jersey,
When an offender has been convicted of murder in the first degree and (a) a jury renders a verdict finding the existence of one or more aggravating circumstances as provided in section 29-2520 or (b)(i) the information contains a notice of aggravation as provided in section 29-1603 and (ii) the offender waives his or her right to a jury determination of the alleged aggravating circumstances, the court shall not commence the sentencing determination proceeding as *630 provided in section 29-2521 without first ordering a presentence investigation of the offender and according due consideration to a written report of such investigation.
In capital cases where a jury is not waived, this provision requires the sentencing panel to utilize a presentence investigation only in the selection phase of the capital sentencing, which occurs
after
the defendant has been determined by a jury to be eligible to receive the death penalty. Because the defendant is already exposed to the maximum punishment permitted by law at the time the sentencing panel is required by this statute to consider the presentence investigation report, the statutory provision is not facially unconstitutional under
Apprendi, supra,
or
Ring v. Arizona,
(ii) Substantive or Procedural Change
Gales argues that L.B. 1 “confers a substantive right that previously never existed in Nebraska’s death penalty statutes,” specifically, “the right to a jury determination of aggravating factors.” Supplemental brief for appellant at 5. He argues that this “substantive change in the law ... is prospective only.”
Id.
Statutes covering substantive matters in effect at the time of a transaction govern, not later-enacted statutes.
State
v.
Groff,
It is of course true that at the time of the commission of the murders for which Gales was found guilty, Nebraska capital sentencing law required the trial judge or a three-judge sentencing panel to determine whether one or more of the aggravating circumstances existed in order to determine whether a defendant found guilty of first degree murder was eligible to receive the death penalty. §§ 29-2520 through 29-2522. With the enactment of L.B. 1 in response to Ring, the law has been changed to provide that the existence of aggravating circumstances is to be determined by a jury unless waived by the defendant. L.B. 1, § 11. To determine whether the law as amended can be applied to Gales’ *631 resentencing, we must determine under the foregoing principles whether the change in the law effected by L.B. 1 was substantive or procedural in nature.
We conclude that the change was procedural. The amendment in question does not alter the substantive nature of the statutory aggravating circumstances, one or more of which must be proved by the State beyond a reasonable doubt before the death penalty may be considered for a defendant found guilty of first degree murder. Instead, the amendment simply provides that the existence of one or more aggravating circumstances must now be determined by a jury, instead of by a judge, unless the right to a jury determination is waived by the defendant.
Early in our history, this court twice considered a first degree murder prosecution affected by legislative changes in Nebraska’s capital sentencing statutes,
Marion
v.
State,
Upon remand, Marion was retried, convicted, and again sentenced to death. He appealed from that conviction. See
Marion II.
*632
In affirming that conviction, this court addressed whether a provision of the criminal code in effect at the time of the murder should have been applied at trial. The provision stated that “ ‘juries in all cases shall be judges of the law and the fact.’ ”
Marion II,
The procedure only has been changed. The degree of punishment, the character of the offense, and the rules of evidence, remain as under the former law. It may be observed that the only change in the law is to provide another tribunal to pass upon the law of the case. Prior to the change, if the words in the former code are to be taken at their full meaning and import, the jury were the judges as to the law of a case on trial. After the change the court sits in that capacity and is the judge of the law. No vested right of [defendant] is affected. A new tribunal may be erected, or a new jurisdiction given to try him, and no right is abridged.
Id.
at 248-49,
In much the same manner, the most recent amendment to our capital sentencing statutes which reassigns responsibility for determining the existence of any aggravating circumstance from judges to juries effects a procedural change in the law which applies to all proceedings which occur after the effective date of the amendment. See, also,
Brice
v.
State,
(iii) Ex Post Facto Challenge
Gales also contends that because § 1 of L.B. 1 amended the penalty for a Class IA felony from “Life imprisonment” to “Life imprisonment without parole,” application of the amendment would subject him to a more onerous penalty than he faced at his first sentencing in violation of constitutional ex post facto principles. Both U.S. Const, art. I, § 10, and Neb. Const, art. I, §16, provide that no ex post facto law may be passed. A law which purports to apply to events that occurred before the law’s enactment, and which disadvantages a defendant by creating or enhancing penalties that did not exist when the offense was committed, is an ex post facto law and will not be endorsed by the courts.
State
v.
Gray,
If, in a subsequent amendment on the same or similar subject, the Legislature uses different terms in the same connection, a court interpreting the subsequent enactment must presume that the Legislature intended a change in the law.
Johnson v. Kenney, ante
p. 47,
Contrary to Gales’ assertions, however, this conclusion does not necessitate a finding that none of the provisions of L.B. 1 may be constitutionally applied to him upon resentencing. To determine whether an unconstitutional portion of a statute may be severed, an appellate court considers (1) whether a workable statutory scheme remains without the unconstitutional portion, (2) whether valid portions of the statute can be enforced independently, (3) whether the invalid portion was the inducement to
*634
passage of the statute, (4) whether severing the invalid portion will do violence to the intent of the Legislature, and (5) whether the statute contains a declaration of severability indicating that the Legislature would have enacted the bill without the invalid portion. See
State ex rel. Stenberg
v.
Omaha Expo. & Racing,
(iv) Scope ofh.B. l’s Application Upon Remand
Gales argues that even if the changes in L.B. 1 are procedural in nature, they cannot apply upon remand because his conviction has not been vacated. This argument is premised upon a misunderstanding of the relief granted by this appeal. Gales alleges, and this court has found, no trial error occurring prior to the acceptance of the guilty verdict and the entry of the judgment of conviction. The only error alleged and found to exist in this appeal occurred during the sentencing phase when the requirements of
Ring
v.
Arizona,
Section 29-2520, as amended by L.B. 1, § 11, is the new statutory procedure for the determination of the existence of aggravating circumstances by a jury. We recognize that this procedure is triggered by the filing of a “notice of aggravation,” pursuant to Neb. Rev. Stat. § 29-1603 (Reissue 1995), as amended by L.B. 1, § 5, and that no such notice was filed in this case. As amended by § 5 of L.B. 1, § 29-1603 provides in pertinent part:
*635 (2)(a) Any information charging a violation of section 28-303 and in which the death penalty is sought shall contain a notice of aggravation which alleges one or more aggravating circumstances, as such aggravating circumstances are provided in section 29-2523. The notice of aggravation shall be filed as provided in section 29-1602. It shall constitute sufficient notice to describe the alleged aggravating circumstances in the language provided in section 29-2523.
(b) The state shall be permitted to add to or amend a notice of aggravation at any time up to and including the thirtieth day prior to the trial of guilt.
The filing of a notice of aggravation is a new procedure established by L.B. 1. There was no such requirement at the time the information in this case was filed, or at any time prior to Gales’ trial and original sentencing. Under the former statute, the State was not constitutionally required to provide a defendant with notice as to which particular aggravating circumstance or circumstances it would rely upon in pursuing the death penalty.
State
v.
Bjorklund,
The district court is therefore directed to conduct proceedings pursuant to § 29-2520, as amended by L.B. 1, in order to determine whether aggravating circumstances exist with respect to each of the two murders committed by Gales. Such determination will be made by a jury impaneled for this purpose, unless waived by Gales. See L.B. 1, § 11 (to be codified as § 29-2520(2)(b)(ii)). The scope of such proceedings will be limited in that the State *636 may seek to prove only those aggravating circumstances which were determined to exist in the first trial, and as to which Gales is therefore on notice. With respect to the murder of Latara, these include only the aggravating circumstances specified in L.B. 1, § 15 (to be codified as § 29-2523(l)(a), (b), (d), and (e)). With respect to the murder of Tramar, the State may seek to prove only the aggravating circumstances specified in L.B. 1, § 15 (to be codified as § 29-2523(l)(a), (b), and (e)). Upon completion of this proceeding, the district court is directed to resentence Gales pursuant to L.B. 1, § 11 (to be codified as § 29-2520(h)), or L.B. 1, §§ 12 and 14 (to be codified as §§ 29-2521 and 29-2522), with a minimum sentence of life imprisonment.
VI. CONCLUSION
Gales has assigned no error with respect to his conviction and sentence on the charge of attempted second degree murder, and we therefore affirm that portion of the judgment of the district court.
Gales has assigned no error with respect to the guilt phase of his trial on two counts of first degree murder, and we therefore do not disturb the guilty verdicts returned by the jury on those counts or the entry of judgment of conviction thereon by the district court. However, based upon the intervening decision of the U.S. Supreme Court in
Ring
v.
Arizona,
The provisions of L.B. 1 shall apply to Gales’ new penalty phase hearing, with the following qualifications: First, the minimum penalty to which Gales may constitutionally be exposed on resentencing is life imprisonment, not life imprisonment without parole. Second, at the aggravation hearing to be conducted on remand pursuant to § 29-2520 as amended by L.B. 1, the State may seek to prove only those aggravating circumstances specified *637 in L.B. 1, § 15, to be codified as § 29-2523(1)(a), (b), (d), and (e), with respect to the murder of Latara, and the aggravating circumstances specified in L.B. 1, § 15, to be codified as § 29-2523(l)(a), (b), and (e), with respect to the murder of Tramar.
To the extent that pending motions of the parties seek appellate relief which is not specifically ordered herein, the motions are denied.
Affirmed in part, and in part vacated AND REMANDED WITH DIRECTIONS FOR NEW PENALTY PHASE HEARING AND RESENTENCING ON COUNTS I AND II.
