This case arises on appeal following the district court’s denial of Sonia Jacobs’ petition for a writ of habeas corpus.
I. STATEMENT OF THE CASE
A. Background Facts
On the morning of February 20, 1976, Florida State Trooper Phillip Black (Black) approached a car parked at a rest stop on Interstate 95. Black was accompanied by Donald Irwin (Irwin), a visiting Canadian law enforcement officer. Black saw Walter Norman Rhodes (Rhodes) asleep in the driver’s seat, Jesse Joseph Tafero (Tafero) asleep in the front passenger seat, and Sonia Jacobs (Jacobs) and her children asleep in the rear seat. Spotting a gun in the car, Black removed it and requested that Rhodes provide personal identification.
Black discovered that Rhodes was a convicted felon on parole and ordered Rhodes to stand in front of the car. Black then ordered Tafero and Jacobs out of the car. When Tafero did not quickly comply, Black pulled him out of the car. The two began scuffling. Jacobs remained in the car.
Black grabbed Tafero and pushed him against the patrol car. Irwin then held Tafero as Black radioed for backups. When Tafero struggled again, Black drew his service revolver. Tafero and the trooper started struggling.
Rhodes testified that Tafero reached for the trooper’s gun arm. One to three shots were fired. Rhodes stated that he then turned and saw Jacobs holding a nine millimeter gun in both hands. Tafero snatched the gun from Jacobs. Tafero then fired at the trooper four or five times and then fired at Irwin twice. Tafero, testifying on behalf of Jacobs, claimed that while he and Black were struggling, Rhodes shot Black and then Irwin.
The group fled in the trooper’s car. Shortly thereafter they commandeered a Cadillac and took its owner hostage. After crashing into a police roadblock, Jacobs, Rhodes and Tafero were placed into custody.
B. Procedural History
On March 3, 1976, Jacobs, Tafero, and Rhodes were indicted for two counts of first degree murder, theft of a firearm and a car, and kidnapping. Rhodes pled guilty and received a life sentence in exchange for his cooperation. Tafero’s and Jacobs’ trials were ordered severed. Jacobs was convicted on all counts. 1 The judge imposed a death sentence despite the jury’s recommendation of a life sentence.
On direct appeal, the Supreme Court of Florida, sua sponte, ordered the trial judge to divulge whether he imposed the death sentence after considering any information not known to Jacobs. The trial judge revealed that he had considered a presen-tence investigation report (PSI) unavailable to Jacobs. The Supreme Court ordered the lower court to release the PSI. Upon review, Jacobs’ counsel discovered that Rhodes, the state’s most important eyewitness, had undergone a confidential polygraph examination and that his statements during this examination differed in several material respects from his trial testimony.
*1286
The Florida Supreme Court temporarily-relinquished its jurisdiction so that the trial court could evaluate whether withholding the polygraph report violated
Brady v. Maryland,
On November 25, 1985, Jacobs filed a petition for a writ of habeas corpus in federal district court. Jacobs alleged: (1) the state suppressed Rhodes’ statements to the polygraph examiner in violation of
Brady v. Maryland,
After exhausting the claim relating to Isham, Jacobs filed an amended petition for a writ of habeas corpus in June of 1988. A magistrate judge held an evidentiary hearing on the perjury issue but Isham refused to attend, citing a fear of retaliation. The magistrate judge recommended that the amended petition be denied in light of Is-ham’s failure to appear. Habeas counsel moved to reopen the hearing after they were able to convince Isham to return to Florida. On April 14,1989, Isham attended a hearing but suffered a heart attack during cross-examination. Her testimony was later completed through a videotaped deposition.
The magistrate judge ruled that although Isham’s trial testimony was perjured, the prosecution did not knowingly use it and the testimony in any event was not central to the state’s case. The district court denied the amended petition for a writ of habeas corpus on all grounds. This appeal followed.
II. ANALYSIS
Jacobs raises the following claims on appeal: (1) the state knew or should have known that it used perjured testimony; (2) the state withheld impeachment evidence in violation of
Brady v. Maryland,
A. Isham’s Perjured Testimony
Jacobs argues that the state’s use of Isham’s perjured testimony violated her right to due process of law.
2
Having al
*1287
ready established that Isham’s testimony was false and was used by the state, Jacobs must now prove that the prosecution knew or should have known that the testimony was false, and that the perjured testimony was material.
See Williams v. Griswald,
The district court found that “neither the prosecutors [n]or police officers told [Isham] what to say or had any reason to disbelieve her story.” The question of whether the state knew or should have known about the perjury and whether the perjury was material involves mixed questions of law and fact. We exercise
de novo
review over legal findings and apply the clear error standard to all factual findings.
United States v. Premises Located at Route 13,
Jacobs argues that the prosecution should have known Isham’s testimony was perjured because (1) Isham had initially told state detectives that she knew only “jailhouse gossip” about Jacobs, and (2) state investigators later failed to corroborate her story. If the detectives indeed learned that Isham knew only gossip about Jacobs, then the prosecution must be charged with the same knowledge.
See Williams v. Griswald,
B. Brady Violation
Rhodes, the only eyewitness to testify that Jacobs had fired the first shot, submitted himself to a polygraph examination prior to trial. According to the polygraph examiner’s report:
[Rhodes] saw Tafero struggling with Trooper Black, heard a loud report, and then saw Tafero go to the back seat of the Camaro, take out a gun and fire four times at Black, and two times at Irwin. [Rhodes] could not be sure whether or not Sonia [Jacobs] had fired at all. He *1288 further stated that no discussion concerning the shooting ever took place from the time they left the crime scene, until the time they were captured at the road block.
Jacobs argues that because Rhodes’ statement to the polygraph examiner differed from his trial testimony in several significant respects, the prosecution withheld impeachment evidence in violation of
Brady v. Maryland,
The state court found that the polygraph examiner's report would not have been helpful to Jacobs because the report was consistent with Rhodes’ trial testimony. The district court reviewed the record and affirmed. The district court in its review, however, incorrectly accorded the state court’s findings a presumption of correctness pursuant to 28 U.S.C.A. § 2254(d) (1977).
See
28 U.S.C.A. § 2254(d) (state court’s factual findings presumed correct). The question of whether a prior statement is consistent with trial testimony is a mixed question of law and fact and thus reviewable
de novo. Davis v. Heyd,
In
Brady,
the Court held that a prosecutor violates an accused’s due process rights by withholding material evidence favorable to the accused. To prove a
Brady
violation, Jacobs must demonstrate that (1) the prosecution suppressed evidence, (2) the suppressed evidence was favorable to her or exculpatory, and (3) the suppressed evidence was material.
Aldridge v. Dugger,
With regard to Brady’s second prong, Jacobs argues that the examiner’s report was critical to her defense in four respects. First, the report reveals that Rhodes was unsure whether Jacobs had fired the gun. At trial, Rhodes testified that Jacobs definitely shot the trooper and that she was the first to shoot. The state counters that this inconsistency is insignificant, since the defense had access to another statement by Rhodes in which he declared that although he was not positive that Jacobs fired the first shot, he believed that she did. This statement, however, indicates that Rhodes had grounds for believing that Jacobs shot Trooper Black. In contrast, Rhodes’ polygraph statement reveals only that he was simply uncertain over Jacobs’ role in the shooting. At the very least, then, the examiner’s report possessed greater impeachment value.
See United States v. Piccinonna,
Second, Rhodes told the jury that he witnessed Tafero taking a gun from Jacobs, whereas in the report he described Tafero as merely retrieving the gun from the backseat of the car. The state argues that the difference between the two stories is made insignificant by the fact that Rhodes told Captain Haley that Tafero “either grabbed [Jacobs’] gun or grabbed another one [in the backseat].” Although the defense did use the Haley statement for impeachment purposes on cross-examination, the statement contained in the polygraph report would have directly contradicted Rhodes’ trial testimony.
Third, Rhodes testified at trial that he had asked Tafero “what happened at first” during the shooting. Tafero, Rhodes claimed, answered that “Sonia took care of it.” In the examiner’s report, however, Rhodes was described as stating in absolute terms that “no discussion concerning the shooting ever took place.”
Finally, Rhodes testified at trial that he heard a first shot from a nine millimeter gun, followed immediately by a louder shot from the trooper’s gun. Tafero, Rhodes testified, then grabbed the gun from Jacobs. His trial testimony thus requires Jacobs to have fired the first shot. On the other hand, the polygraph report, describing only one “loud report” before Tafero retrieved the gun, indicates that the trooper fired the first shot and that Tafero fired all of the remaining shots. The examiner’s report is therefore clearly favorable to Jacobs: Rhodes’ prior statements to the poly *1289 graph examiner support Jacobs’ argument that she was a passive passenger in the vehicle, and not the instigator of the killings.
Turning to
Brady’s
third prong, we consider whether the report was material.
See U.S. v. Agurs,
We find that Rhodes’ polygraph testimony significantly clashes with his statements at trial, and was more damning than other equivocal statements made by Rhodes and available to the defense. Under Florida rules of evidence, the defense could have entered this report both to impeach the witness and to establish the truth of the matter asserted.
See
Fla.Stat. Ann. § 90.801(2) (West 1979). The examiner’s report, if accepted as the truth, impeaches Rhodes’ inculpatory trial testimony on several issues which centrally concern Jacobs’ guilt or innocence. The examiner’s report would therefore have provided the defense with more than merely insignificant supplemental support for cross-examination purposes.
See, e.g., United States v. Benz,
We therefore find it reasonably probable that the disclosure of the examiner’s report would have altered the outcome of a trial untainted by the admission of Isham’s perjured testimony and of Jacobs’ statements obtained in violation of
Miranda v. Arizona,
*1290 C. Jury Instruction
Jacobs argues that she was entitled to a jury instruction stating that “a defendant’s mere presence at the scene of a crime and even knowledge of illegal activity is insufficient to cause a conviction to result.” The state trial court rejected this instruction even though it is undisputed that the requested instruction was a correct statement of law and that her defense depicted her as merely present at the site of the shootings. The court instead intended to give a standard charge on principles of aiding and abetting, although the court at first neglected to provide this instruction. After the jury had deliberated for eleven hours over the issue of Jacobs’ guilt, it submitted three questions regarding the degree of participation necessary for conviction: (1) whether a person’s degree of participation in a crime determines that person’s degree of guilt, (2) whether active or passive participation renders each person equally responsible for the crime, and (3) whether a passive participant should be considered an accomplice. The court responded by reading the instruction it had earlier intended to provide:
As to Principals, I instruct you that a person may commit a crime by his own personal act, or do the act or acts of another person. Any person who knowingly aids, abets, counsels, hires or otherwise procures the commission of a crime, is equally guilty with the one who actually performs the criminal act, whether or not he is or is not present at the commission of the offense.
However, for one person to be guilty of a crime physically committed by another, it is necessary that he have a conscious intent that the criminal act shall be done; and that pursuant to that intent, he do some act or say some word which was intended to, and which did incite, cause, encourage, assist or induce another person to actually commit the crime. 5
The court again refused to give the mere presence charge.
An error in instructing the jury cannot constitute a basis for habeas relief unless the error “so infected the entire trial that the resulting conviction violates due process.”
Henderson v. Kibbe,
Jacobs contends that the proffered instruction, while not erroneous, was incomplete because the jury might have construed Jacobs' mere presence in the car as an “act.” “An omission, or an incomplete instruction, is less likely to be prejudicial than a misstatement of the law.” ‘
Id.
at 155,
After the court had neglected to provide an aiding or abetting instruction, the jury submitted three questions that revealed its confusion over the distinction between active and passive participation in a crime. We find that the court timely issued a responsive instruction that clarified that one who is not a principal is guilty only if she (1) has a “conscious intent” that a crime be committed and (2) “act[sj” or speaks some word that incites, causes, encourages, assists or induces another to commit a crime. Therefore, one who fails to “act” or speak a word — in other words, one who is merely present at the site of the crime — cannot be found guilty of the crime committed. Jacobs provides no reason for this Court to believe that the jurors made the counterintuitive construction that her mere presence could constitute a qualifying “act.” Indeed, the counterintuitive be *1291 comes almost incredible in light of the fact that such a construction would have rendered entirely pointless the central effort of the defense: to portray Jacobs as “merely present” at the time of the shooting. The trial court’s failure to adopt the suggested instruction thus did not violate Jacobs’ due process rights.
D. Miranda Violations
Jacobs argues that the trial court’s admission of five statements attributed to her violated her rights under
Miranda v. Arizona,
Following the car crash at the roadblock, Jacobs made several statements to the police. She allegedly made the first statement immediately following the crash. Without informing Jacobs of her Miranda rights, Trooper Trice asked her, “Do you like shooting troopers?” Jacobs purportedly answered, “We had to.” 6 Jacobs argues that this statement should have been excluded because she was in custody and had not been informed of her right to remain silent.
Only persons in custody must receive
Miranda
warnings before questioning.
Roberts v. United States,
Jacobs made the statement after emerging from a car that had attempted to run a police roadblock and that had been fired upon by law enforcement officials. All of the officers present had weapons drawn. Trooper Trice, armed with a twelve gauge shotgun, testified that he “grabbed her” and had placed her “in custody.” We find that a reasonable person in Jacobs’ position clearly would not have felt free to leave. Because she had not been informed of her Miranda rights before answering Trooper Trice, the trial court should have excluded this statement. 7
Jacobs also claims that four additional statements should have been suppressed because they were improperly elicited by the police after she had invoked her right to remain silent. We must first inquire whether she had in fact invoked her right to silence.
“If the individual indicates
in any manner,
at any time prior to or during questioning, that he wishes to remain silent, the interrogation must cease.”
Lightbourne v. Dugger,
After the initial exchange between Trooper Trice and Jacobs, Trice read Jacobs her
Miranda
rights. Jacobs said nothing else. She was placed in a patrol car. When Detective Gary Hill then repeatedly asked Jacobs her name, she refused to respond, telling him that “it didn’t matter,” and that “it didn’t make any difference.” Hill then recited her rights from a card and asked her to sign the card. Jacobs simply returned the card unsigned. Hill next asked her to write just her first name on the card. She again said nothing, and refused to comply. Hill still again asked her to sign the card. Jacobs finally wrote “I understand” on the card. Later at the police station, she repeatedly refused to respond when Hill again persisted in attempting, as Hill described it, “to get her name out of her.” At trial, Hill concluded, “[s]he didn’t want to tell me.” Hill characterized his efforts throughout this period as an attempt “to find out what her status was in [the shootings].”
8
Although Jacobs had not expressly invoked her right to remain silent, by repeatedly refusing to speak at all to Hill, even to the point of not giving her name, Jacobs provided at least an equivocal or ambiguous indication that she wished to remain silent.
Compare Martin v. Wainwright,
Once a suspect demonstrates her desire to terminate questioning, law enforcement officials may not take statements from the suspect unless they “scrupulously honor[]” the suspect’s right to remain silent.
Miranda,
Despite the fact that Jacobs quickly established that she desired to remain silent, Hill continued to question her about her identity until she finally stated that she was Sandy Jenkins and that she had joined the men as a hitchhiker. Hill clearly ignored Jacobs’ right to cut off questioning. Although Hill may have been unsure whether Jacobs was indicating that she desired to remain silent, he was entitled only to clarify whether she wished to remain silent.
Owen v. State of Alabama,
Within twenty minutes of this round of questioning, Hill moved Jacobs to another office in the police station for additional questioning. Jacobs was again advised of her
Miranda
rights. She executed a waiver form and made another exculpatory statement, differing from the first but equally untrue. Because an insignificant amount of time had passed since Jacobs had invoked her right to remain silent, the police could take a statement only if she both had waived her right and had initiated further conversation.
See Delap,
Before another hour had passed, Jacobs asked Sergeant Paul Weber where her children were. Weber told her that they were in the safe custody of one of the secretaries. Jacobs next inquired of Weber why she was at the police station. Weber responded that she was being detained as a suspect in a shooting. Jacobs then pressed Weber for more information about her status. At this point, Weber asked Jacobs how she felt about the shootings, if she recognized the name of one of the other suspects, and then if she had ever fired a gun. Jacobs disclosed that she owned and had fired two handguns.
The state stresses that Jacobs’ exchange with Weber occurred over two hours after Jacobs initially invoked her right to remain silent. The state contends that because the passage of over two hours constitutes a “significant period” of time, the police were free to resume interrogation under
Delap,
Law enforcement officials have been found to have scrupulously honored a suspect’s right to terminate questioning in cases in which as little as one to two hours separated a suspect’s invocation of her rights and
one
subsequent interrogation.
See United States v. Nash,
Courts that have found more than two rounds of questioning acceptable have also found much longer periods of time between the invocation and the subsequent interrogations as well as similar careful attention to
Miranda
safeguards.
See, e.g., United States v. Corral-Martinez,
Determination of the “significant period” following an invocation of the right to remain silent, as an inquiry merely corollary to that of determining scrupulous observance, thus involves careful scrutiny of the totality of the circumstances.
See Jackson v. Dugger,
In the instant case, Detective Hill re-initiated questioning six times before Sergeant Weber began questioning Jacobs. Hill continued his interrogation long beyond the point at which Jacobs had effectively invoked her right to cut off questioning. We find that the nature and frequency of the interrogation of Jacobs up to this point renders insignificant the passage of little more than two hours between Jacobs’ invocation and Weber’s questioning.
Because Weber’s questioning occurred during the “significant period,” this questioning triggers the prophylactic rule requiring suppression of elicited statements unless the suspect both “initiated” the round of questioning and voluntarily waived her right to silence.
Delap,
Jacobs’ subsequent statement to Weber is still inadmissible unless she also waived her previously asserted right to silence.
Delap,
A waiver is valid, however, only if it is made voluntarily, knowingly and intelligently.
Miranda,
Undoubtedly, repeated interrogations during the two hours preceding this dialogue progressively undermined Jacobs’ ability to maintain her silence.
See Mosley,
For a waiver to be made knowingly and intelligently, it must be made "with a full awareness of both the nature of the right being abandoned and the consequences of the decision to abandon it.”
Dunkins,
Jacobs made her final contested statement that same afternoon, approximately seven hours after she had invoked her right to remain silent. Jacobs allegedly told Lieutenant Farinato (Farinato) that she wanted to talk to him in private. Farinato arranged to transport Jacobs in his car. After being advised of her rights by Farinato, Jacobs explicitly waived her right to remain silent. Jacobs purportedly *1296 told him that she fired the first shot from the car. She stated that someone then said “give me a gun, give me a gun.” Jacobs threw the gun to Tafero, who proceeded to shoot “the trooper and ... the Canadian.”
The trial court properly admitted this last statement. Although this final exchange followed unacceptable police conduct, Jacobs had enjoyed a significant, uninterrupted period of time since her prior interrogation. Jacobs spontaneously offered to speak about the investigation. Farinato then offered her another opportunity to invoke her right to silence by administering fresh
Miranda
warnings. She waived her right to remain silent and then immediately gave an unsolicited description of the murders.
See Delap v. Dugger,
We find, however, that the trial court’s improper admission of three of the five statements constitutes reversible error.
See Chapman v. California,
E. The Photographs
Jacobs contends that she was denied due process by the admission into evidence of sixteen graphic photographs of the bodies of the victims during autopsy and at the scene of the shooting. This argument is without merit.
We review state court evidentiary rulings on a petition for habeas corpus to determine only “ ‘whether the error, if any, was of such magnitude as to deny petitioner his right to a fair trial.’ ”
Futch v. Dugger,
III. CONCLUSION
For the foregoing reasons, we AFFIRM in part, REVERSE in part, and REMAND the case to the district court with instructions to grant the petition for a writ of habeas corpus conditioned on the state’s affording Jacobs a new trial.
Notes
. Tafero was tried, convicted and, following the exhaustion of his appeals, he was executed.
. Jacobs cites other portions of Isham’s deposition to argue that the prosecution impermissibly encouraged Isham to perjure her testimony.
See United States
v.
Wilson,
. Having found that the prosecution neither knew nor should have known of the perjury, we need not inquire whether the perjury was material. Jacobs nonetheless urges this Court to find that even unknowing use of perjured testimony constitutes a violation of due process.
See Sanders v. Sullivan,
. The state also presented two additional eyewitnesses. Both were truck drivers who observed the events from a considerable distance. Neither of these witnesses could discern who fired any of the shots, though one concluded that the shots came from the back seat of the car.
. Florida state courts may recall juries to provide additional instructions. See Fla.Crim.Rule 3.420 (West 1989).
. Another trooper standing nearby claimed Jacobs did not respond to the question; Jacobs denied making the statement. Trooper Trice neglected to include this purported statement in a report prepared immediately after the incident.
. The state argues that the statement should nonetheless be admissible because Jacobs volunteered the statement without any instigation. The state contends that Trooper Trice’s question — “Do you like shooting troopers?” — was purely rhetorical and thus noncoercive. Assuming
arguendo
the question was rhetorical, if the accused is in custody, the police do not read the accused her rights, and a question is asked and answered, then the statement must be suppressed.
Harryman v. Estelle,
. We find that Hill’s persistent questioning constitutes "interrogation” and not a "routine inquiry” permissible even after a suspect has requested that questioning cease.
See Christopher
v.
State,
. The admissible statement to Weber, revealing that Jacobs likely owned the handgun used to commit the shootings, was relatively insignificant. Moreover, the credibility of the statement to Farinato is not unassailable. Farinato insisted that Jacobs referred to Irwin as “the Canadian," although there is no evidence in the record indicating how she could have known he was Canadian at that point in time. When they arrived at the Detective Division, Jacobs denied talking with Farinato, refused to say anything else, or sign a statement.
