Allen Wayne Janecka, a Texas death row inmate, seeks a certificate of appeala-bility (“COA”) to challenge the district court’s denial of his 28 U.S.C. § 2254 petition for habeas corpus relief. Because Ja-necka has failed to make a substantial showing of the denial of a constitutional right with respect to any of his claims, we deny the COA.
Janecka has been sentenced to death for the murder for remuneration of fourteen-month-old Kevin Wanstrath. Kevin and his parents, Diana and John Wanstrath, were found dead in their home on July 6, 1979 by a neighbor — all died of gunshot wounds to the head. The coroner initially ruled that Diana murdered her husband and son before committing suicide, but no gun was found at the crime scene. Officer Johnny Bonds of the Houston Police Department continued to investigate the case for the next year-and-a-half, focusing on Diana’s brother, Markham Duff-Smith, who stood to gain a substantial inheritance upon the family’s death. During his investigation, Officer Bonds uncovered evidence suggesting that Duff-Smith hired Walt Waldhauser to murder the family, and that Waldhauser in turn hired Janecka to commit the murders.
In July 1980, Janecka left Texas and moved to Georgia to live with his girlfriend, Karen Holder, and her mother. A few months later, Houston Detective Dan McAnulty traveled to Georgia in order to locate Janecka. Unable to locate Janecka, Detective McAnulty spoke with Holder instead, who was then living with her father. Holder had moved from her mother’s to her father’s home after Janecka left Georgia. At some point during their conversation, Holder turned over to Detective McAnulty Janecka’s .22 caliber pistol and a can of mace, both of which were used in the Wanstrath murders. Around the same time Detective McAnulty was in Georgia, Janecka was arrested in Texas on warrants for another homicide and for arson.
Thereafter, while returning to his cell from a canceled line-up, Janecka overheard Detective McAnulty mention to another officer that he had been in Georgia. Janecka asked Detective McAnulty how everyone in Georgia was doing. Detective McAnulty responded that everyone was fine. Janecka then began asking questions about his investigation in Georgia. Detective McAnulty told him that he believed he had found the gun and a can of mace used in the murders. During the next twenty-four hours, Janecka made three statements confessing to the murder of Kevin Wanstrath. Janecka also told police that he only participated in the Wanstrath murders because he was afraid that Waldhau-ser, who Janecka claims had mafia connections, would have killed him if he did not do so.
Based on the testimony of several witnesses, the murder weapon, and Janecka’s incriminating statements, a jury convicted Janecka in 1993 of the murder for remu *319 neration of Kevin Wanstrath and sentenced him to death. 1 The Texas Court of Criminal Appeals (TCCA) affirmed his conviction and sentence on direct appeal, and the United States Supreme Court denied his petition for writ of certiorari. Ja-necka sought collateral review of his conviction in state court, which both the state trial court and the TCCA denied. Janecka then filed a § 2254 petition for habeas relief in district court and requested an evidentiary hearing. The district court denied habeas relief on all fourteen of Janec-ka’s habeas claims and rejected his request for a hearing. 2 Janecka now seeks a COA from this court to appeal four of these claims.
I
In order to obtain a COA for any of his claims, Janecka must make a “substantial showing of the denial of a constitutional right.”
Slack v. McDaniel,
In addition, in assessing whether Janec-ka is entitled to a COA, “we must keep in mind the deference scheme laid out in 28 U.S.C. § 2254(d).”
Moore v. Johnson,
II
Janecka first seeks a COA on his claim that his Fourth Amendment rights were *320 violated by the admission of “tainted fruits” into evidence at his murder trial. Specifically, Janecka claims that Detective McAnulty recovered the murder weapon and the can of mace from Karen Holder during an unlawful search of her father’s residence because he did not have a search warrant and did not receive consent to search the residence. As a result, Janecka contends, the gun, the can of mace, and all information obtained as a result of the unlawful search- — -including his three confessions — should have been excluded from evidence during trial. Because, Janecka argues, jurists of reason would find debatable the district court’s denial of this claim, he contends that he is entitled to a COA on this issue.
We generally are barred from reviewing Fourth Amendment claims on habeas review.
Stone v. Powell,
Janecka argues that his Fourth Amendment claim based on an unlawful search is not barred by Stone because he was not afforded an opportunity for full and fair litigation on this particular claim. Specifically, Janecka maintains that he diligently raised his unlawful search claim in both the state trial and appellate courts, but that both courts failed to sufficiently address the merits of this claim. After carefully reviewing the record in this case, we conclude Janecka was afforded sufficient opportunity for full and fair litigation of his Fourth Amendment unlawful search claim to trigger the Stone bar.
First, Janecka had an opportunity to raise his unlawful search claim in a pretrial motion to suppress the gun, the can of mace, and the confessions.
3
The fact that Janecka failed to take advantage of this opportunity does not render the
Stone
bar inapplicable to this claim.
Id.
at 1193 (stating that the
Stone
bar applies “whether or not the defendant avails himself of th[e] opportunity [for full and fair litigation in state court]”). Janecka also was able to object at trial to the admission of evidence obtained as a result of the allegedly unlawful search. Indeed, it appears from the trial transcript that Janecka made such an objection, at least with respect to the introduction of the gun and the can of mace.
4
The fact that Janecka may disagree with the district court’s decision to overrule his objection is not sufficient to overcome the
Stone
bar.
See Swicegood v. Alabama,
Second, Janecka was afforded sufficient opportunity to litigate his Fourth Amendment claim before the TCCA. On appeal, Janecka raised three Fourth Amendment claims — the present claim of unlawful search and two additional claims of unlawful arrest. The TCCA addressed all three claims in the same section of its opinion, concluding that none of Janecka’s arguments had merit. Janecka now argues that the TCCA’s consideration of his Fourth Amendment unlawful search claim was insufficient because the court discussed in detail the reasons for rejecting his unlawful arrest arguments, but failed to specify its reasons for denying relief on his unlawful search claim.
Even assuming Janecka is correct that the TCCA overlooked his unlawful search claim (which was only one of 48 claims raised), the
Stone
bar still applies to this claim for two reasons. To begin, we have previously held that, absent additional allegations that state processes routinely or systematically are applied in such a way as to prevent the actual litigation of Fourth Amendment claims, mistakes that thwart the presentation of Fourth Amendment claims do not render the
Stone
bar inapplicable.
Williams v. Brown,
Additionally, even if Janecka’s unlawful search claim was not barred by
Stone,
he is still not entitled to a COA on this claim because it clearly fails on the merits. First, Janecka cannot show that he had a “reasonable expectation of privacy” in the gun because he left it in the care of Karen Holder.
See Rawlings v. Kentucky,
In sum, jurists of reason would not find debatable the district court’s denial of Ja-necka’s Fourth Amendment claim. The district court also did not err when it denied Janecka’s request for an evidentia-ry hearing on this claim because the claim can be resolved on the undisputed facts in the record.
Ill
Janecka next seeks a COA on his claim that the TCCA violated his right to due process when it refused to apply Texas’s' former
Palafox
or “voucher” rule in his direct appeal.
7
Under Texas’s former
Palafox
rule, if the State introduced a defendant’s confession, which contained both incriminating and exculpatory information, and the State failed to disprove the exculpatory component, then a defendant could successfully move for a judgment of acquittal.
Palafox v. State,
Janecka’s due process claim rests on the assumption that the Due Process Clause places identical limits on the decisionmak-ing power of the judiciary as those placed on the legislature by the Ex Post Facto Clause.
9
Janecka then relies on the Su
*323
preme Court’s ex post facto jurisprudence, and in particular
Calder v. Bull,
1st. Every law that makes an action, done before the passing of the law, and which was innocent when done, criminal; and punishes such action. 2nd. Every law that aggravates a crime, or makes it greater than it was, when committed. 3rd. Every law that changes the punishment, and inflicts a greater punishment, than the law annexed to the crime, when committed. 4th. Every law that alters the legal rules of evidence, and receives less, or different, testimony, than the law required at the time of the commission of the offence, in order to convict the offender.
Id. at 390. Janecka argues that the TCCA’s retroactive abrogation of the Pa-lafox rule violated the Due Process Clause because it had the same effect as a legislative enactment falling within Calder' s fourth category in that it shifted the burden with respect to his duress defense to the prosecution.
When reviewing Janecka’s claim on direct appeal, the TCCA rejected Janecka’s assumption that the Supreme Court had incorporated wholesale CaldePs four categories into due process limitations on the retroactive application of judicial decisions. Specifically, the TCCA concluded as follows:
It is true the Supreme Court has held that retroactive application of an unforeseeable judicial construction of a statute, or a sudden, unanticipated change in a court-made rule, may violate due process in much the same way that retroactive application of new or modified penal provisions violates the Ex Post Facto Clause. But the gravamen of this dm process guarantee is “fair warning" to the defendant that his conduct was criminal at the time he engaged in it. Insofar as the Supreme Court has yet said, the Due Process Clause of the Fourteenth Amendment does not speak to the fairness, vel non, of retroactively lifting a burden of production of evidence from the shoulders of the State. And all the Palafox rule did, after all, was to impose a burden to produce evidence to refute any exculpatory matter that is contained in a confession admitted, and hence “vouched for,” by the State. There is no indication the Supreme Court would regard the abandonment of this increased burden of production in any way to implicate considerations of “fair warning” about whether specific conduct is criminal.
Janecka v. State,
At the time of the TCCA’s 1996 decision in Janecka’s case, the Supreme Court had not yet addressed the question of whether the limitation stated in CaldePs fourth category extended to the judiciary. The Supreme Court had, however, recently issued a decision that called into question the viability of the fourth category of
Calder,
even as applied to the legislature. In 1990, the Supreme Court had applied an alternative definition of ex post facto laws in
Collins v. Youngblood
that omitted Calder’s fourth category.
Anticipating this argument, Janecka relies principally on the Supreme Court’s recent decision in
Carmell v. Texas
as evidence of the continued viability of
Cald-eas
fourth category, even after
Youngblood. Carmell v. Texas,
Janecka’s reliance on
Carmell
is misplaced. To begin,
Carmell
was decided in 2000, well after the TCCA’s 1996 opinion denying Janecka’s due process claim. Thus, Janecka cannot rely on it as stating clearly established federal law
at the time the TCCA ruled on his due process claim. See Proctor,
In the alternative, Janecka argues that the TCCA’s decision constituted an unreasonable application of clearly established federal law. Specifically, he argues that even assuming the TCCA applied the correct “fair warning” standard to his claim, the retroactive abrogation of
Palafox
still violated the Due Process 'Clause because it was an “unexpected and indefensible” change in the law.
See Rogers,
In sum, the TCCA’s decision rejecting Janecka’s due process claim was neither contrary to nor an unreasonable application of Supreme Court precedent as it stood at the time of the TCCA’s decision in 1996. As a result, the district court properly deferred to the TCCA’s decision when it denied habeas relief on Janecka’s due process claim. Because jurists of reason would not find the district court’s resolution of this claim debatable, Janecka is not entitled to a COA on this issue.
IV
Janecka next seeks a COA on his claim that his Sixth Amendment compulsory process right was violated when the State executed Markham Duff-Smith — the mastermind of the plot to murder the Wanstrath family — less than one month before Janecka’s 1993 retrial. According to Janecka, Duff-Smith had informed his counsel that he would be willing to testify in Janecka’s defense at his retrial. 13 Although Duff-Smith did not specify exactly what- his testimony would entail or how it would be helpful to Janecka’s defense, Janecka contends that it would have supported his duress defense and made him appear more sympathetic in the eyes of the jury during sentencing. 14
*326 At the time Duff-Smith spoke with Ja-necka’s counsel, he was on death row for the 1975 murder of his mother' — Kevin Wanstrath’s grandmother. His execution date was scheduled to take place one-month before the commencement of Janec-ka’s retrial. Janecka then filed two motions to stay Duff-Smith’s execution. Both motions were denied, the latter on the ground that the State’s interest in the timely punishment of Duff-Smith outweighed Janecka’s interest in having Duff-Smith testify in person at his trial. 15 According to the state trial court, Janecka’s Sixth Amendment right was adequately protected by Janecka’s ability to depose Duff-Smith. After his motions for stay of Duff-Smith’s execution were denied, Ja-necka attempted to depose Düff-Smith. Duff-Smith, however, refused to cooperate. When called before the court to be deposed, Duff-Smith stated that he was invoking his Fifth Amendment right for purposes of the deposition, but that he would waive that privilege if called to testify at trial.
After Duff-Smith refused to testify at his deposition, Janecka submitted a sealed offer of proof outlining the testimony Duff-Smith would provide at trial. Specifically, Janecka urged that:
1. Duff-Smith’s testimony would dispute that Janecka was in the chain of remuneration for this crime;
2. Duff-Smith’s testimony would establish that he did not pay Walt Wal-dhauser to pay Janecka to murder;
3. Duff-Smith would testify that various state witnesses were lying;
4. Duff-Smith would testify that if Ja-necka did murder for hire, he did it out of duress from the mafia; and
5. Duff-Smith would testify in mitigation of sentence.
Janecka then reurged his motion to stay Duff-Smith’s execution, but his motion was again denied. Four days later, the State of Texas executed Duff-Smith. Duff-Smith’s final words were: “I am a sinner of all sinners. I was responsible for the 75 and 79 cases. My trial was not just; it was not fair; they lied against me.”
The Sixth Amendment provides that “[i]n all criminal prosecutions, the accused shall enjoy the right ... to have compulsory process for obtaining witnesses in his favor.” U.S. CONST, amend. VI. The Supreme Court has made clear, however, that in order to establish a violation of the compulsory process right, a petitioner must show more than the mere absence of a defense witness’s testimony at trial.
See United States v. Valenzuela-Bernal,
Janecka has failed to make the requisite showing under Valenzuela-Bernal. Ja- *327 necka’s explanation of how Duff-Smith’s testimony might have been material and favorable to his defense is vague at best. He fails to offer any details regarding what specific information Duff-Smith could have provided or why Duff-Smith’s testimony would not have been merely cumulative of other evidence presented at trial. The only specific point Janecka suggests Duff-Smith would have made had he been able to testify at trial was that he did not pay Waldhauser to hire Janecka to murder the Wanstraths. Janecka has failed to show how this point could have helped his defense. Because the State’s theory was that Waldhauser, rather than Duff-Smith, paid Janecka to kill the Wanstraths, any evidence that Duff-Smith did not intend for Waldhauser to hire Janecka would have been of little value. 16
Moreover, even assuming Janecka has established materiality and favorableness, the absence of Duff-Smith’s testimony from Janecka’s retrial and sentencing hearing was harmless.
See Crane v. Kentucky,
Because Janecka has failed to make a substantial showing of the denial of his compulsory process right, he is not entitled to a COA on this claim.
V
Finally, Janecka seeks a COA on his claim that the state trial court admitted “irrelevant and prejudicial victim-impact evidence” during the sentencing phase of his trial in violation of his Eighth and Fourteenth Amendment rights. Specifically, Janecka argues that statements made by two of the State’s witnesses at sentencing were so inflammatory that they exceeded the scope of victim-impact evidence allowed by the Supreme Court in
Payne v. Tennessee,
In Payne v. Tennessee, the Supreme Court held that the Eighth Amendment presents no per se bar to the admission of victim-impact evidence during the penalty phase of a capital trial. Id. 17 According to the Court:
Victim impact evidence is simply another form or method of informing the sentencing authority about the specific harm caused by the crime in question, evidence of a general type long considered by sentencing authorities.... In the majority of cases, ... victim impact evidence serves entirely legitimate purposes. ... [A] State may properly conclude that for the jury to assess meaningfully the defendant’s moral culpability and blameworthiness, it should have before it at the sentencing phase evidence of the specific harm caused by the defendant.
Id.
at 825,
Janecka first challenges the admission of the testimony of Judge Ted Poe. Judge Poe, in his former capacity as an Assistant Harris County District Attorney, had prosecuted one of Janecka’s co-defendants. Judge Poe was apparently called by the State to rebut Janecka’s argument that sentencing him to death would be grossly unfair in light of the fact that Waldhauser and Paul McDonald, both accomplices in the murders, were free men by the time of Janecka’s retrial. After explaining the relatively lenient treatment of Waldhauser and McDonald, however, Judge Poe went on to testify about the additional issue of how his life had been profoundly affected and “forever changed” by the death of Kevin Wanstrath and his contact with this case. Over the objections of Janecka’s counsel, Judge Poe testified that he had a child who was now the same age as Kevin would have been had he lived. Judge Poe also testified that he kept a photo of Kevin on his desk at work — both in his former capacity as a prosecutor and in his current capacity as a judge.
In addition to the testimony of Judge Poe, Janecka also challenges the admission of the testimony of Michael Chavis. The State called Chavis to testify about how Janecka attempted to recruit him in an effort to rip off a drug dealer. Over Ja-necka’s objection, however, Chavis went on to testify about how the killing of Kevin Wanstrath “affected” him. Chavis testified that the loss of his leg in an unrelated accident did not compare to the pain caused by his knowledge that he might have prevented the offense but did not do so.
Assuming
arguendo
that the admission of Judge Poe’s and Chavis’s challenged testimony was constitutional error, Janec-ka’s claim still fails because he has not shown that the testimony had a “substan
*329
tial and injurious effect or influence in determining the jury’s [punishment] verdict.”
Brecht,
Because Janecka has failed to make a substantial showing of the denial of his Eighth and Fourteenth Amendment rights, he is not entitled to a COA on this claim.
VI
For the foregoing reasons, Janecka has failed to make a substantial showing of the denial of any constitutional rights. We therefore DENY his request for a certificate of appealability on each of his claims.
Notes
. Janecka was convicted in 1993 after a retrial. His first conviction was vacated because of an error in the original indictment.
. Janecka also filed a motion in district court to alter or amend judgment pursuant to Fed. R.Civ.P. 59(e), which the district court denied.
. Janecka did file a pre-trial motion objecting to the admission of the gun, the can of mace, and his confessions, but based on different grounds.
. At trial, Janecka's counsel asked Detective McAnulty whether he had a search warrant or consent to search Karen Holder’s residence. After Detective McAnulty answered negatively to both questions, Janecka’s counsel objected to the introduction into evidence of the gun and the can of mace.
. Janecka argues that he maintained a reasonable expectation of privacy because a bailment was created when he left the gun with Karen Holder.
See United States v. Johns,
. At trial, Karen Holder testified that she was not forced or pressured into turning the gun *322 and the can of mace over to Detective McAn-ulty.
. We note that this claim appears to have been added to Janecka’s amended § 2254 petition after the 1-year statute of limitations expired. 28 U.S.C. § 2244(d)(1) ("A 1-year period of limitation shall apply to an application for a writ of habeas corpus by a person in custody pursuant to the judgment of a State court.”). Because this is a death penalty case and the limitations period was exceeded by at most three days, we assume arguendo that this claim was not time-barred.
. We are not aware of any cases, and Janecka does not cite any, in which the
Palafox
rule was used to shift the burden of proof on a defendant's affirmative defense to the State. Rather,
Palafox
has been construed to require the State to disprove exculpatory information negating an element of the offense.
See, e.g., Ibanez v. State,
.The Ex Post Facto Clause provides that "[n]o state shall ... pass any ... ex post facto law.” U.S. Const, art. I, § 10, cl.l. Although the text of the Ex Post Facto Clause makes clear that it only limits the powers of legislatures, the Supreme Court has acknowledged a similar limitation on the power of the judiciary to render decisions that retroactively criminalize previously legal conduct.
Marks v. United States,
. In
Youngblood,
the Court endorsed the following definition of an ex post facto law first
*324
used by the Court in
Beazell v. Ohio,
. The Supreme Court's recent decision in
Rogers v. Tennessee
further reinforces our conclusion that the TCCA's decision was not contrary to clearly established federal law. In
Rogers,
tire Supreme Court made clear that its prior opinions in
Bouie
and
Marks
did not “go so far as to incorporate jot-for-jot the specific categories of
Calder
into due process limitations on the retroactive application of judicial decisions.”
.We also note that, even if applied, it is far from clear that Palafox would mandate an acquittal based on the evidence in this case. Contrary to Janecka’s assertions, the State produced substantial evidence at trial that Janecka was motivated by greed rather than fear.
. Duff-Smith did not participate in Janec-ka’s first trial.
. In a signed affidavit, Duff-Smith stated only that “if given the opportunity, [he] could provide information and testimonial evidence relating to defensive strategies for Mr. Janee- *326 ka's trial, including but not limited to, exculpatory evidence, impeachment evidence of State witnesses, rebuttal evidence, as well as mitigation evidence, if applicable.”
. Janecka’s first motion was dismissed for want of jurisdiction. Janecka then re-filed his motion in the appropriate court.
. To the extent Janecka complains that the State denied him the opportunity to obtain more detailed information regarding Duff-Smith's potential testimony, this argument is without merit. Janecka had an opportunity to interview Duff-Smith about his potential testimony before his death. Rather, it was Duff-Smith's refusal to speak outside of Ja-necka’s trial in what appears to have been an attempt to delay his execution that prevented Janecka from obtaining this information. Vale
nzuela-Bernal,
. In
Payne,
the Supreme Court reconsidered its prior holdings in
Booth v. Maryland,
. At oral argument on this case, Janecka's counsel suggested that Judge Poe’s testimony was per se prejudicial because it was given by a sitting judge. Because this argument would be a vast extension of
Payne,
and would require us to state a new rule of constitutional law, it is barred by
Teague. Teague v. Lane,
. Janecka presented twenty-three witnesses of his own testifying over three days, including nine family members, five prison officers, eight friends, and a mental-health expert.
. At oral argument on this case, Janecka’s counsel urged that it was not necessary for Janecka to show that the admission of the challenged statements substantially influenced the jury’s verdict because this case falls within
Brecht’s
footnote nine. In
Brecht’s
footnote nine, the Court noted the possibility of "an unusual case” in which there occurs "a deliberate and especially egregious error of the trial type, or one that is combined with a pattern of prosecutorial misconduct” that might so "infect the integrity of the proceedings as to warrant the grant of habeas relief, even if it did not substantially influence the jury’s verdict."
Brecht,
