Colin Dickey v. Ron Davis ( 2023 )


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  •                 FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    COLIN RAKER DICKEY,                       No. 19-99009
    Petitioner-Appellant,         D.C. No.
    1:06-cv-00357-
    v.                                       AWI-SAB
    RONALD DAVIS, Warden, San
    Quentin State Prison,                      OPINION
    Respondent-Appellee.
    Appeal from the United States District Court
    for the Eastern District of California
    Anthony W. Ishii, District Judge, Presiding
    Argued and Submitted June 21, 2022
    Pasadena, California
    Filed May 31, 2023
    Before: Mary H. Murguia, Chief Judge, and William A.
    Fletcher and Morgan Christen, Circuit Judges.
    Opinion by Judge Christen
    2                         DICKEY V. DAVIS
    SUMMARY*
    Habeas Corpus / Death Penalty
    On Colin Raker Dickey’s appeal from the district court’s
    denial of his 
    28 U.S.C. § 2254
     habeas corpus petition
    challenging his California conviction and death sentence, the
    panel reversed and remanded to the district court with
    instructions to grant a conditional writ of habeas corpus as
    to the special-circumstances findings and the imposition of
    the death penalty, and affirmed the district court’s holding as
    to Dickey’s certified guilt-phase claims.
    Dickey was sentenced to death in 1991 after a California
    state jury convicted him of robbery, burglary, and felony
    murder.
    Dickey raised several certified claims, including claims
    that the prosecutor knowingly used false and misleading
    testimony in violation of Napue v. Illinois, 
    360 U.S. 264
    (1959), and failed to disclose favorable material evidence in
    violation of Brady v. Maryland, 
    373 U.S. 83
     (1963).
    The panel wrote that this is an exceptional case in which
    the prosecutor deliberately elicited, and then failed to
    correct, false and misleading testimony from the State’s star
    witness, Gene Buchanan. The prosecutor went on to exploit
    Buchanan’s false testimony in his closing argument. He also
    failed to produce evidence to the defense team that would
    have seriously impeached Buchanan’s testimony. These
    *
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    DICKEY V. DAVIS                      3
    points were uncontested; the central issue in this appeal was
    the materiality of the State’s Napue and Brady violations.
    To obtain the death penalty, the State was required to
    prove special circumstances. The panel wrote that the record
    makes clear that the State’s special-circumstances evidence
    depended on Buchanan’s testimony. It also makes clear that
    the prosecutor recognized the jury would have ample reason
    to doubt Buchanan. To shore up Buchanan’s testimony, the
    State asked the court to read aloud a California statute that
    put Buchanan on notice that he would subject himself to the
    death penalty if he lied under oath and Dickey was
    wrongfully convicted and executed. What the jury did not
    know—because the prosecutor did not correct the false
    testimony—is that Buchanan did lie to them under oath, even
    given the potential consequences for doing so in a capital
    case.
    Reviewing under the deferential standard afforded to
    state-court decisions by the Antiterrorism and Effective
    Death Penalty Act (AEDPA), 
    28 U.S.C. § 2254
    (d), the panel
    concluded it was objectively unreasonable for the state court
    to decide that the prosecutor’s misconduct was immaterial to
    the jury’s special-circumstances findings. The panel
    reached this conclusion because the State’s case for the death
    penalty unquestionably hinged on Buchanan’s testimony,
    and applying Napue’s materiality standard through the lens
    of AEDPA, it was objectively unreasonable to conclude that
    correcting Buchanan’s false testimony could not have
    changed the jury’s decision to impose the death
    penalty. Because the panel held that the requirement of
    § 2254(d) is satisfied, the panel resolved Dickey’s claim
    without the deference AEDPA otherwise requires. On de
    novo review, the panel held that Dickey is entitled to relief.
    4                      DICKEY V. DAVIS
    The panel therefore reversed and remanded to the district
    court with instructions to grant a conditional writ as to the
    jury’s special-circumstances findings and imposition of the
    death penalty. The panel did not reach the merits of any of
    Dickey’s other penalty-phase claims.
    The panel affirmed the denial of Dickey’s certified guilt-
    phase claims related to his conviction for aiding and abetting
    the underlying robbery. First, the panel concluded the state
    court reasonably determined that the State’s Napue and
    Brady violations were not material to the jury’s guilt-phase
    verdict and that trial counsel’s failure to investigate and
    impeach Buchanan was not prejudicial in the guilt
    phase. Separately, the panel separately concluded the
    California Supreme Court could have reasonably determined
    that Dickey failed to show guilt-phase prejudice stemming
    from counsel’s strategy of seeking to select jurors who were
    predisposed to vote for the death penalty. Third, the panel
    concluded the California Supreme Court could have
    reasonably denied Dickey’s claim that trial counsel should
    have withdrawn based on an irreconcilable conflict. The
    panel did not reach the merits of any of Dickey’s uncertified
    guilt-phase claims.
    COUNSEL
    David Senior (argued), Matthew L. Weston, and Ann K.
    Tria, McBreen & Senior, Los Angeles, California, for
    Petitioner-Appellant.
    Justain P. Riley (argued) and Kimberley A. Donohue,
    Deputy Attorneys General; Kenneth N. Sokoler, Supervising
    Deputy Attorney General; Michael P. Farrell and James
    DICKEY V. DAVIS                     5
    William Bilderback II, Senior Assistant Attorneys General;
    Xavier Becerra, Attorney General of California; Office of
    the California Attorney General; Sacramento, California; for
    Respondent-Appellee.
    OPINION
    CHRISTEN, Circuit Judge:
    Colin Raker Dickey was sentenced to death in 1991 after
    a California state jury convicted him of robbery, burglary,
    and felony murder. He appeals the district court’s denial of
    his federal habeas corpus petition filed pursuant to
    
    28 U.S.C. § 2254
    . Dickey raises several certified claims,
    including claims that the prosecutor knowingly used false
    and misleading testimony in violation of Napue v. Illinois,
    
    360 U.S. 264
     (1959), and failed to disclose favorable
    material evidence in violation of Brady v. Maryland, 
    373 U.S. 83
     (1963).
    This is an exceptional case in which the prosecutor
    deliberately elicited, and then failed to correct, false and
    misleading testimony from the State’s star witness, Gene
    Buchanan. The prosecutor went on to exploit Buchanan’s
    false testimony in his closing argument. He also failed to
    produce evidence to the defense team that would have
    seriously impeached Buchanan’s testimony. These points
    are uncontested; the central issue in this appeal is the
    materiality of the State’s Napue and Brady violations.
    To obtain the death penalty, the State was required to
    prove special circumstances, and the record makes clear that
    the State’s special-circumstances evidence depended on
    6                      DICKEY V. DAVIS
    Buchanan’s testimony. It also makes clear that the
    prosecutor recognized the jury would have ample reason to
    doubt Buchanan. To shore up Buchanan’s testimony, the
    State asked the court to read aloud a California statute that
    put Buchanan on notice that he would subject himself to the
    death penalty if he lied under oath and Dickey was
    wrongfully convicted and executed. What the jury did not
    know—because the prosecutor did not correct the false
    testimony—is that Buchanan did lie to them under oath, even
    given the potential consequences for doing so in a capital
    case.
    Reviewing under the deferential standard afforded to
    state-court decisions by the Antiterrorism and Effective
    Death Penalty Act (AEDPA), 
    28 U.S.C. § 2254
    (d), we
    conclude it was objectively unreasonable for the state court
    to decide that the prosecutor’s misconduct was immaterial to
    the jury’s special-circumstances findings. We reach this
    conclusion because the State’s case for the death penalty
    unquestionably hinged on Buchanan’s testimony, and
    applying Napue’s materiality standard through the lens of
    AEDPA, it was objectively unreasonable to conclude that
    correcting Buchanan’s false testimony could not have
    changed the jury’s decision to impose the death penalty.
    Because we hold that the requirement of § 2254(d) is
    “satisfied,” we “resolve [Dickey’s] claim without the
    deference AEDPA otherwise requires.”             Panetti v.
    Quarterman, 
    551 U.S. 930
    , 953 (2007). On de novo review,
    we hold that Dickey is entitled to relief.
    We therefore reverse and remand to the district court
    with instructions to grant a conditional writ of habeas corpus
    as to the jury’s special-circumstances findings and
    imposition of the death penalty. We deny relief on Dickey’s
    DICKEY V. DAVIS                     7
    guilt-phase claims and do not reach his remaining penalty-
    phase claims.
    I
    A
    Marie Caton and Louis Freiri were attacked at Caton’s
    Fresno, California residence in November 1988. People v.
    Dickey, 
    111 P.3d 921
    , 928 (Cal. 2005). Caton’s daughter,
    Lavelle Garratt, went to check on her mother on November
    8 and discovered Caton unconscious in her bedroom. 
    Id.
    Caton had been beaten and had multiple stab wounds. 
    Id.
    She died of her injuries eleven days later. 
    Id.
     Garratt found
    Freiri dead from stab wounds in the archway between the
    dining room and the living room. 
    Id.
     When the police
    arrived, they discovered two suspicious knives in Caton’s
    kitchen and a venetian blind cord wrapped around Freiri’s
    neck. 
    Id.
     The venetian blinds in Caton’s house were all
    intact, and no usable fingerprints were found at the scene of
    the crime. 
    Id.
     at 928 & n.2. Garratt told the police that she
    suspected her son, Richard Cullumber, had attacked Caton
    and Freiri. 
    Id. at 928
    . Garratt explained that Cullumber was
    a drug addict who frequently asked Caton for money, and
    that Caton was known to hide large amounts of cash
    throughout her house. 
    Id.
    Cullumber lived in an apartment on Harvard Avenue in
    Fresno with Dickey and four other roommates, including
    Gail Goldman and Richard Buchanan. 
    Id.
     Cullumber’s
    roommates told the police that Cullumber had packed a bag
    and left the apartment on the night of the murders. 
    Id.
     Five
    days later, Cullumber commandeered a car after the police
    tried to stop him, warning the driver: “I need the car; I’ve
    already killed a woman.” 
    Id.
     He was cornered after a high-
    8                            DICKEY V. DAVIS
    speed chase and killed himself with a pistol registered to
    Freiri. 
    Id.
    Several months after the murders, Buchanan saw a flyer
    at a convenience store announcing that Caton’s relatives
    were offering a $5,000 reward for information leading to
    conviction of the perpetrator of the murders.1 
    Id.
     at 929 n.3,
    930–31, 937. Buchanan left his name with the store clerk,
    and he was put in touch with Detective Doug Stokes. 
    Id.
     at
    930–31. Buchanan told Stokes that Dickey had been
    involved in the murders, and Stokes circled back to the
    Harvard Avenue apartment to continue his investigation.
    Stokes spoke to Goldman, who had initially denied knowing
    anything about the murders. 
    Id. at 930
    . This time, she
    shared more information about events that night. 
    Id.
     at 929–
    30.
    Goldman died before the trial began, but her sworn
    testimony from Dickey’s preliminary hearing was read into
    the record at trial.2 
    Id.
     at 929 n.4. In her preliminary hearing
    testimony, Goldman said that on the night of the murders she
    saw Cullumber take a venetian blind out of the hall closet in
    their apartment and go into the bedroom with it. 
    Id. at 929
    .
    Later, she noticed the blind had been returned to the closet
    and a blind in the bedroom was missing a cord. 
    Id.
     Goldman
    said that she saw Dickey walk into the kitchen that same
    night and open a drawer. 
    Id.
     She initially testified that
    Dickey looked in a knife-and-silverware drawer, but she
    1
    The reward was originally $3,000 but was later raised to $5,000.
    2
    The State also presented testimony from Detective Stokes, who gave
    his account of what Goldman told him during the investigation. 
    Id. at 929
    . Stokes’s version of Goldman’s account differed from Goldman’s
    own testimony in several respects. See infra Part IV.C.
    DICKEY V. DAVIS                      9
    later clarified that she did not see which drawer Dickey had
    opened. 
    Id.
     at 929 & n.5. According to Goldman, Dickey
    and Cullumber soon left the apartment. 
    Id. at 929
    . Goldman
    believed the men had no money when they left because
    Cullumber had asked her for money to buy cigarettes. 
    Id.
    When the two men returned to the apartment later that
    evening, Cullumber packed his bags, gave Goldman $40 or
    $50 in cash to repay a debt, and left. 
    Id.
     Goldman testified
    that when Detective Stokes showed her one of the knives
    found at Caton’s home, she told him, “I have a knife exactly
    like that knife, or they are twins[,] . . . . [b]ut mine is in
    storage with all my stuff that I have in storage.” When the
    prosecutor followed up by asking whether she had “a knife
    exactly like that in the apartment on Harvard,” Goldman
    responded, “I -- yes,” without specifying when the knife was
    at the apartment or whether it was at the apartment but in
    storage on the night of the murders.
    Goldman also testified that she and Dickey were
    watching the news together shortly after the murders and
    saw a story reporting that Freiri was dead and Caton was still
    alive but near death. 
    Id.
     Dickey became upset and told
    Goldman that he wanted to talk to her in the bedroom, and
    Buchanan followed them. 
    Id.
     In the bedroom, Dickey told
    Goldman that he had accompanied Cullumber to Caton’s
    house to “help [him] get the money,” but he had nothing to
    do with the two murders. 
    Id.
     (alteration in original).
    Goldman recalled Dickey saying that Cullumber had assured
    him “nothing was going to happen,” and that at Caton’s
    house, Dickey searched for money in Caton’s bedroom with
    Caton present. 
    Id.
     When Dickey stepped out of Caton’s
    bedroom, he saw Freiri slumped over in a chair in the living
    room and “knew something had happened.” 
    Id.
     Cullumber
    then “went beserk” and “came into the bedroom and started
    10                     DICKEY V. DAVIS
    beating up on [Caton].” 
    Id.
     The two men found $700, which
    they split. 
    Id.
    Dickey was charged in Fresno County Superior Court
    with robbery, burglary, and aiding and abetting murder.
    Dickey v. Davis, 
    231 F. Supp. 3d 634
    , 653 (E.D. Cal. 2017).
    He pled not guilty to all the charges. 
    Id.
     There was no
    physical evidence linking Dickey to the crime scene and no
    living witnesses to the crime. The State did not argue at trial
    that Dickey killed Caton or Freiri. It argued only that he was
    guilty under an aiding-and-abetting theory. 
    Id.
     at 714–15.
    The State sought the death penalty and alleged a number of
    special circumstances that allowed imposition of the death
    penalty under California law. See 
    Cal. Penal Code § 190.2
    (a)(3), (17)(A) & (G). The jury was instructed that
    in order to find any of the special circumstances true, it must
    find that Dickey “intended either to kill a human being or to
    aid another in the killing of a human being.”
    B
    Goldman’s preliminary hearing testimony was read to
    the jury, but her death left Buchanan as the State’s primary
    living witness at trial.
    Buchanan’s trial testimony mirrored Goldman’s
    preliminary hearing testimony in some respects. He too
    testified that Dickey and Cullumber left the apartment on the
    night of the murders, that they had no money when they left
    but had money when they returned, and that Dickey saw a
    news story about the crime a couple days later and admitted
    that he had been involved in the robbery. Dickey, 
    111 P.3d at 930
    .
    But in key respects, Buchanan’s testimony was much
    more incriminating than Goldman’s. He testified that it was
    DICKEY V. DAVIS                     11
    Dickey, not Cullumber, who removed a cord from a venetian
    blind in the apartment on the night of the murders. 
    Id.
     He
    also told the jury that when he looked into the bedroom after
    Dickey had returned a blind to the closet that night, he saw a
    knife identical to Goldman’s on the bed. 
    Id.
     Buchanan
    added that when Dickey and Cullumber had returned to the
    apartment, Dickey asked Buchanan to take him and
    Cullumber for a drive. 
    Id.
     According to Buchanan, Dickey
    threw a pair of shoes and his jacket out the car window
    during the drive. 
    Id.
    Buchanan described following Goldman and Dickey into
    a bedroom at the Harvard Avenue apartment a couple days
    after the murders and hearing Dickey tell Goldman that:
    him and [Cullumber] had been over to
    [Cullumber]’s grandmother’s house, and that
    they had entered the house -- how he had
    done it, how he had walked up to the door,
    knocked, faked like [Cullumber] was going
    to be in jail, needed to use the phone, and then
    [Cullumber] sneaked in, they were supposed
    to tie him them [sic] up, get this money and
    everything.        And while [Dickey] is
    supposedly in the bedroom looking for the
    money he hears a commotion, looked out the
    bedroom door, sees an elderly man with his
    head slumped down, considers him dead, and
    that if you kill one you might as well kill them
    both.
    When asked to clarify what he meant by the last statement,
    Buchanan said, “[Dickey] said that he—only what he
    thought, he didn’t say what he did. He said that, ‘If you kill
    12                    DICKEY V. DAVIS
    one you might as well kill them both.’” 
    Id.
     According to
    Buchanan, Dickey “didn’t say he said it to [Cullumber], he
    just said it as that was his opinion.” 
    Id.
     Notably, in
    Goldman’s preliminary hearing testimony recounting the
    conversation she had with Dickey in the bedroom of the
    Harvard Avenue apartment, she said nothing at all about
    Dickey making this statement.
    The jury heard testimony explaining that Buchanan did
    not come forward until he saw a flyer announcing the
    reward, several months after he heard Dickey’s conversation
    with Goldman. 
    Id.
     Buchanan testified that he came forward
    because of his Christian upbringing, not because of the
    reward money. 
    Id. at 931
    . However, in her preliminary
    hearing testimony, Goldman said that Buchanan told her he
    intended to turn in Dickey so that he could collect the
    reward. 
    Id. at 930
    . The jury also heard testimony from
    Dickey, Goldman, and the defense investigator that Dickey
    and Buchanan strongly disliked each other. 
    Id. at 931
    . The
    defense investigator testified that Buchanan mentioned his
    dislike for Dickey every time they met, and Dickey and
    Buchanan both testified that Buchanan was particularly
    angry with Dickey because Dickey had torn up the only
    photo Buchanan had of his youngest daughter. 
    Id.
     Adding
    to his credibility problems, Buchanan admitted at trial that
    he frequently used heroin and cocaine, that he had used
    drugs an hour or two before he heard Dickey admit his
    involvement in the robbery, and that he had continued using
    drugs as recently as the day before his trial testimony.
    C
    The prosecutor, Ken Hahus, labored throughout the trial
    to mitigate Buchanan’s credibility issues. To buttress
    Buchanan’s credibility, Hahus asked Buchanan to confirm
    DICKEY V. DAVIS                    13
    on re-direct examination that he was aware of California
    Penal Code § 128, which provides that “[e]very person who,
    by willful perjury or subornation of perjury procures the
    conviction and execution of any innocent person, is
    punishable by death or life imprisonment without possibility
    of parole.” At Hahus’s request, the trial court took judicial
    notice of that statute and read it aloud to the jury.
    Immediately after the trial court read § 128 aloud, Hahus
    asked Buchanan about his interactions with defense
    investigator Melvin King and whether King ever bought him
    anything. Buchanan testified that King bought him beer on
    about three occasions, lunch, and a pair of shoes. Hahus then
    asked Buchanan leading questions that compared
    Buchanan’s interactions with King to Buchanan’s
    interactions with the district attorney’s office:
    Q. At anytime have you spoken with anybody
    who’s told you they were from my office, from
    the D.A.’s Office?
    A. No, sir, only when they’ve come to pick
    me up for court.
    Q. You’ve talked to me a couple of times; is
    that right?
    A. Yes, sir.
    Q. At anytime have the folks who’ve come to
    pick you up from my office or me, have we
    bought you anything?
    A. Not a single thing, sir.
    Hahus and Buchanan both knew this testimony was
    false, but Hahus made no move to correct it. Instead, in his
    14                     DICKEY V. DAVIS
    closing argument, Hahus reminded the jury of this
    testimony, emphasizing that King, the defense investigator,
    was the “only investigator who supplied Buchanan with
    money or alcohol.” In line with Buchanan’s false testimony
    that Buchanan and Hahus had met only “a couple of times,”
    Hahus also argued in closing that “[i]t’s pretty clear
    Buchanan was not prepared to testify, that he was not
    scripted to testify.”
    Hahus also acknowledged in his closing argument that
    there were multiple reasons to doubt Buchanan’s word. But
    he gave the jury his own opinion of Buchanan’s truthfulness:
    “Do you think Gene Buchanan would lie for $5,000?
    Maybe. Do you think Gene Buchanan would lie to send a
    man to prison? I don’t think so.” Dickey’s lawyer objected,
    and the judge duly instructed the jury to ignore Hahus’s
    statement.
    Hahus then emphasized to the jury that Buchanan knew
    that under § 128 he could face life in prison or the death
    penalty for perjuring himself in a capital case. Hahus told
    the jury that Buchanan was a “street-wise,” “con-wise” drug
    addict, and a “hype” who used hypodermic needles. But
    Hahus argued that Buchanan still “deserves to have you
    listen to what he says when he comes into this courtroom”:
    He’s still a street person, he’s still a con, he
    didn’t change just because he heard a man
    admit to burglary, robbery and murder; he’s
    still the same man. But that doesn’t mean
    that the truth cannot come out of the mouth of
    a drug addict. It can come out of the mouth
    of a drug addict just as well as it can come
    out of the mouth of a priest.
    DICKEY V. DAVIS                     15
    ***
    Do you think Gene Buchanan would lie to
    send a man to prison? Perhaps. Do you
    think Gene Buchanan would lie to send a man
    to prison that he doesn’t like? Even more
    perhaps. Do you think Gene Buchanan
    would lie to send a man to prison behind a
    murder charge where Gene Buchanan
    himself could face a capital case for it?
    There’s honor among thieves. There’s also
    something else; some things are more
    important than others, and even though he
    might be a sleazy hype, do you really think he
    made all this up for 5,000 bucks when it’s this
    serious?
    The jury convicted Dickey of two counts of robbery, one
    count of burglary, and two counts of felony murder. It also
    found true several special circumstances: (1) felony-murder
    robbery; (2) felony-murder burglary; and (3) multiple
    murder. Dickey, 
    231 F. Supp. 3d at 653
    . At the penalty
    phase, defense counsel presented no mitigation evidence but
    argued that Dickey did not deserve the death penalty because
    the State’s theory of the case was limited to Dickey acting as
    an aider and abettor. The jury imposed the death penalty.
    II
    After Dickey was sentenced, the trial court appointed
    substitute counsel to represent him. 
    Id.
     His new counsel
    filed motions for a new trial and to modify the verdict. 
    Id.
    The motions argued that Buchanan’s testimony concerning
    whether the prosecution provided him favors had been false
    and misleading.
    16                     DICKEY V. DAVIS
    At the hearing on Dickey’s motion for a new trial, the
    defense team discovered that the prosecution had known
    Buchanan gave false testimony, and rather than correcting it,
    the prosecutor had used it in his closing argument. Dickey
    learned that it had been the State’s investigator who arranged
    a deal with the proprietor of a local boarding house to
    provide room and board for Buchanan pending receipt of the
    reward for his trial testimony. The jury had heard that
    Buchanan was living in a boarding house on credit, but it did
    not know that the State had brokered the arrangement.
    The defense team also learned from Hahus that he had
    met with Buchanan “probably a dozen times before the
    trial,” not “a couple of times” as Hahus had posited in the
    leading question he had posed to Buchanan.
    Hahus further disclosed at the post-trial hearing that
    Buchanan had lied to him about a consequential matter
    during their very first phone call. Hahus testified that
    Buchanan called him approximately a year and a half before
    trial and said that he had failed to appear at a hearing on
    felony drug charges. Buchanan wanted to know if a warrant
    had issued for his arrest and, if so, whether Hahus could get
    it withdrawn. Hahus recalled Buchanan telling him that he
    and his lawyer had met with Barbara Dotta, the prosecutor
    handling Buchanan’s felony drug case, that Dotta had agreed
    to dismiss the charges against Buchanan because he was “a
    prime witness in the Dickey case,” and that Dotta
    purposefully kept this agreement off the record so Dickey’s
    counsel would not know about it.
    Hahus testified that he “came unglued” after receiving
    this call from Buchanan and “began yelling at [Buchanan]
    that that was a load of BS,” that no deal had been made, and
    that any deals made with witnesses in the Dickey trial would
    DICKEY V. DAVIS                      17
    go through Hahus. Hahus testified that he “was a little
    peeved, frankly, that [Buchanan] thought [he] was so big of
    an idiot that [he] would believe [Buchanan] telling [him] that
    another DA had made some type of deal and was
    purposefully trying to keep it from a defense attorney.”
    Hahus took notes about this conversation with Buchanan but
    testified that he did not disclose them to Dickey’s counsel
    until “shortly before the hearing on the motion for a new
    trial.” Dickey, 
    111 P.3d at 937
    .
    Based on this newly discovered evidence and
    information, Dickey argued that the prosecutor had
    knowingly solicited and used false testimony in violation of
    Napue, 
    360 U.S. 264
    , and also failed to disclose favorable
    material evidence in violation of Brady, 
    373 U.S. 83
    . The
    trial court denied the motion for a new trial without
    addressing whether the State’s knowing use of false
    testimony might have affected the jury’s decision. Dickey,
    
    111 P.3d at 944
    . Instead, the court focused on whether
    Buchanan had created a false impression in the minds of the
    jury about whether the State bought him anything. The trial
    court reasoned that the State “only acted as a conduit” and
    had not been involved in providing the benefit Buchanan
    received from the boarding house arrangement. Dickey, 
    231 F. Supp. 3d at 750
    . The court did not discuss Buchanan’s
    false testimony that he had met with Hahus only a couple of
    times. Dickey’s post-trial motions were denied, and he was
    sentenced to death in 1992. See 
    id.
     at 653–54.
    In 2005, the California Supreme Court considered
    Dickey’s direct appeal, which included his Napue and Brady
    claims. Dickey, 
    111 P.3d 921
    . It affirmed his conviction and
    sentence. 
    Id.
     Dickey also raised these claims in his first state
    habeas petition, which the California Supreme Court denied.
    The court denied the claims on the merits and also stated that
    18                          DICKEY V. DAVIS
    they were barred because they had been raised and rejected
    on direct appeal.3
    Dickey filed his federal habeas petition in 2007. The
    district court denied relief on his guilt-phase claims in 2017,
    Dickey, 
    231 F. Supp. 3d 634
    , and denied relief on his
    penalty-phase claims in 2019, Dickey v. Davis, No. 1:06-cv-
    00357-AWI-SAB, 
    2019 WL 4393156
     (E.D. Cal. Sept. 13,
    2019). The court granted a certificate of appealability
    (COA) as to whether the prosecution knowingly used false
    evidence in violation of Napue and failed to disclose
    favorable impeachment evidence in violation of Brady
    (Claim XIII).4 
    Id. at *153
    . Dickey timely appealed the
    district court’s rulings. We have jurisdiction pursuant to 
    28 U.S.C. § 1291
     and § 2253(a).
    III
    We review de novo a district court’s denial of habeas
    relief. Avena v. Chappell, 
    932 F.3d 1237
    , 1247 (9th Cir.
    2019). Because Dickey filed his federal habeas petition after
    3
    Dickey argues that, because the California Supreme Court denied his
    first state habeas petition summarily, there was no adjudication on the
    merits, and this court should review his claim de novo. This is incorrect.
    The California Supreme Court expressly stated that all of Dickey’s
    claims were denied on the merits, and the Supreme Court has held that a
    state court’s unexplained denial is assumed to be an adjudication on the
    merits. See Cullen v. Pinholster, 
    563 U.S. 170
    , 187–88 (2011);
    Harrington v. Richter, 
    562 U.S. 86
    , 100 (2011).
    4
    The district court also granted a COA on whether counsel was
    ineffective for intentionally seeking to empanel a pro-death jury (Claim
    I); whether counsel was ineffective for failing to investigate and impeach
    Buchanan (Claim II(E)); and whether the trial court should have held a
    Marsden hearing and whether counsel should have withdrawn from his
    representation of Dickey (Claims V and II(I)). Dickey, 
    2019 WL 4393156
    , at *153.
    DICKEY V. DAVIS                      19
    April 24, 1996, the Antiterrorism and Effective Death
    Penalty Act (AEDPA) applies. See 
    Pub. L. No. 104-132, 110
     Stat. 1214 (1996). AEDPA prohibits a federal court
    from granting a petition for a writ of habeas corpus unless
    the state court’s decision was “contrary to, or involved an
    unreasonable application of, clearly established Federal law
    as determined by the Supreme Court of the United States,”
    or the state court’s decision “was based on an unreasonable
    determination of the facts in light of the evidence presented
    in the State court proceeding.” 
    28 U.S.C. § 2254
    (d)(1)–(2).
    “In determining whether a state court decision is contrary
    to federal law, we look to the state’s last reasoned decision .
    . . as the basis for its judgment.” Avila v. Galaza, 
    297 F.3d 911
    , 918 (9th Cir. 2002). When there is no reasoned state-
    court decision addressing a habeas claim, there is a
    rebuttable presumption that the state court adjudicated the
    claim on the merits. See Harrington, 
    562 U.S. at
    99–100. In
    that circumstance, federal courts must consider what
    arguments could have supported the state court’s decision
    and then ask whether it is possible fairminded jurists could
    disagree that those arguments or theories are inconsistent
    with a prior Supreme Court holding. See 
    id. at 102
    .
    A state court’s decision is contrary to clearly established
    federal law if it “‘applies a rule that contradicts the
    governing law set forth in [Supreme Court] cases’ or if it
    ‘confronts a set of facts that are materially indistinguishable
    from a decision of [the Supreme] Court and nevertheless
    arrives at a result different from [this] precedent.’” Cook v.
    Kernan, 
    948 F.3d 952
    , 965 (9th Cir. 2020) (alterations in
    original) (quoting Williams v. Taylor, 
    529 U.S. 362
    , 405–06
    (2000)). “Clearly established federal law” refers to the
    Supreme Court’s holdings “as of the time of the relevant
    state-court decision.” Avena, 932 F.3d at 1247 (alterations
    20                     DICKEY V. DAVIS
    omitted) (quoting Lockyer v. Andrade, 
    538 U.S. 63
    , 71
    (2003)). Circuit precedent does not clearly establish federal
    law for purposes of § 2254(d)(1). Marshall v. Rodgers, 
    569 U.S. 58
    , 64 (2013). If a petitioner overcomes the §
    2254(d)(1) bar by showing the state court’s decision was
    contrary to clearly established federal law, “he must also
    demonstrate that he is entitled to relief without the deference
    required by AEDPA.” Jones v. Ryan, 
    52 F.4th 1104
    , 1115
    (9th Cir. 2022); see also Johnson v. Williams, 
    568 U.S. 289
    ,
    303 (2013).
    IV
    Before the California Supreme Court, Dickey argued that
    the State violated Napue by presenting and failing to correct
    false or misleading testimony. Specifically, Dickey argued
    that the prosecutor elicited false testimony from Buchanan
    that: (1) the State had not provided any favors to Buchanan;
    and (2) Buchanan met with Hahus only “a couple of times”
    prior to trial. The California Supreme Court agreed that
    Buchanan’s testimony created the false impression that the
    prosecution had not provided him any favors, but it did not
    address Buchanan’s testimony concerning the number of
    pretrial meetings he had with Hahus. Dickey, 
    111 P.3d at
    937–38. The court decided the State’s Napue violation
    regarding favors was not material, reasoning that the
    prosecutor’s failure to correct Buchanan’s testimony could
    not have made a difference at trial. 
    Id. at 938
    .
    For nearly ninety years, it has been established Supreme
    Court precedent that a conviction violates due process if it is
    obtained through knowing presentation of perjured
    testimony. See Mooney v. Holohan, 
    294 U.S. 103
    , 112–13
    (1935) (per curiam). In 1957, the Supreme Court held that a
    prosecutor’s failure to correct a material false impression
    DICKEY V. DAVIS                      21
    also violates due process. See Alcorta v. Texas, 
    355 U.S. 28
    ,
    31 (1957) (per curiam).           Dickey’s habeas petition
    specifically invokes Napue, in which the Supreme Court
    established that a conviction is invalid if the State is aware
    of a material falsity and fails to correct it, regardless of
    whether the State intentionally solicited the false evidence or
    testimony. See Napue, 
    360 U.S. at
    269–70. This is so
    because the State’s knowing use of false testimony prevents
    “a trial that could in any real sense be termed fair.” 
    Id. at 270
     (quoting People v. Savvides, 
    136 N.E.2d 853
    , 855 (N.Y.
    1956)). “The principle that a State may not knowingly use
    false evidence, including false testimony, to obtain a tainted
    conviction . . . does not cease to apply merely because the
    false testimony goes only to the credibility of the witness.”
    
    Id. at 269
    .
    To prevail on his Napue claim, Dickey bore the burden
    of showing that: “(1) testimony (or evidence) was actually
    false, (2) the prosecution knew or should have known that
    the testimony was actually false, and (3) . . . the false
    testimony was material.” Hayes v. Brown, 
    399 F.3d 972
    ,
    984 (9th Cir. 2005) (en banc) (alteration in original) (quoting
    United States v. Zuno-Arce, 
    339 F.3d 886
    , 889 (9th Cir.
    2003)); see Napue, 360 US. at 269–71. The Supreme Court
    has repeatedly acknowledged that the introduction of false
    testimony is corrosive to the “truth-seeking function” of our
    adversarial system. United States v. Agurs, 
    427 U.S. 97
    ,
    103–04, 103 n.8 (1976) (collecting cases). The Court has
    thus explained that the materiality analysis for a Napue
    violation requires that a conviction “must be set aside if there
    is any reasonable likelihood that the false testimony could
    have affected the judgment of the jury.” 
    Id.
     at 103–04
    (emphasis added); see also Giglio v. United States, 
    405 U.S. 150
    , 154 (1972).
    22                         DICKEY V. DAVIS
    Napue’s materiality standard is considerably less
    demanding than the standard for Brady claims, which
    requires that a petitioner show “there is a reasonable
    probability that, had the evidence been disclosed to the
    defense, the result of the proceeding would have been
    different.” Strickler v. Greene, 
    527 U.S. 263
    , 280 (1999)
    (emphasis added) (quoting United States v. Bagley, 
    473 U.S. 667
    , 682 (1985) (opinion of Blackmun, J.)). The Supreme
    Court has explained that Napue’s materiality threshold is
    lower “not just because [Napue cases] involve prosecutorial
    misconduct, but more importantly because they involve a
    corruption of the truth-seeking function of the trial process.”
    Agurs, 
    427 U.S. at 104
    ; see also Mooney, 
    294 U.S. at 113
    (“[A] deliberate deception of court and jury by the
    presentation of testimony known to be perjured . . . is as
    inconsistent with the rudimentary demands of justice as is
    the obtaining of a like result by intimidation.”). Napue’s
    more lenient materiality standard, and the Supreme Court’s
    explanation of the rationale for this standard, are pivotal to
    the decision we reach in Dickey’s appeal.
    A
    Dickey argues that the California Supreme Court recited
    the correct legal standard for his Napue claim, but based its
    decision on an incomplete assessment of Buchanan’s false
    testimony, a misapplication of the Napue materiality
    standard, and an unreasonable determination of the facts.5
    5
    Dickey argues that the California Supreme Court’s decision was
    premised on an unreasonable determination of the facts because the court
    “substantially and unreasonably misstated its factual record regarding
    the extent of Buchanan’s indebtedness [to Margie Strickland, who
    operated the boarding house at which he was staying].” Because we
    DICKEY V. DAVIS                              23
    As recounted above, to buttress Buchanan’s credibility
    before the jury, Hahus asked Buchanan to confirm on re-
    direct examination that he was aware of California Penal
    Code § 128. Hahus then requested that the trial court read
    that statute aloud to the jury6 and immediately followed the
    court’s reading with a series of leading questions designed
    to contrast Buchanan’s interactions with defense
    investigator King against his contacts with the district
    attorney’s office:
    Q. At anytime have you spoken with anybody
    who’s told you they were from my office, from
    the D.A.’s Office?
    A. No, sir, only when they’ve come to pick
    me up for court.
    Q. You’ve talked to me a couple of times; is
    that right?
    A. Yes, sir.
    Q. At anytime have the folks who’ve come to
    pick you up from my office or me, have we
    bought you anything?
    A. Not a single thing, sir.
    grant relief on Dickey’s penalty-phase Napue claim on other bases, we
    do not reach this argument.
    6
    The trial court stated: “The court will take judicial notice of Penal Code
    Section 128. Ladies and -- members of the jury: Penal Code Section 128
    provides as follows, and I quote: ‘Every person who, by willful perjury
    or subornation of perjury procures the conviction and execution of any
    innocent person, is punishable by death or life imprisonment without
    possibility of parole. The penalty shall be determined pursuant to
    Sections 190.3 and 190.4.’”
    24                         DICKEY V. DAVIS
    Unbeknownst to the jury, this testimony was false—and
    the State knew it. It was not until the post-trial hearing on
    Dickey’s motion for a new trial that the State’s investigator,
    Willie Martin, revealed that Buchanan contacted Martin
    because he “needed food and a place to stay” after he had
    been released from jail for an unrelated drug charge in March
    1989 and wanted to know what the district attorney’s office
    could do to help him. The district attorney’s office had no
    funds available to assist Buchanan with housing, but Martin
    was aware of the $5,000 reward. Martin contacted Margie
    Strickland, a boarding house operator, and asked whether
    she would consider allowing Buchanan to stay at her
    boarding house and forego paying rent until he received the
    anticipated reward.       Strickland agreed, and Martin
    memorialized the agreement on the Fresno District
    Attorney’s Office letterhead.         Buchanan signed the
    agreement, and Martin and another district attorney’s office
    employee witnessed it. Strickland periodically sent running
    tallies to Martin at the district attorney’s office indicating
    how much money Buchanan owed her. These tallies
    included sums for separate loans totaling several hundred
    dollars that Strickland made to Buchanan for incidentals like
    cigarettes and “personal needs.”7 At the post-trial hearing
    on Dickey’s motion for a new trial, Hahus conceded that
    when he questioned Buchanan at trial, he was aware of
    Buchanan’s housing arrangement and Martin’s role in
    brokering the agreement. Dickey, 
    111 P.3d at 938
    . Hahus
    also revealed that he had “probably a dozen” pretrial
    7
    After the trial court heard at the post-trial hearing that the district
    attorney’s office had arranged housing for Buchanan, the court stated,
    “That’s a favor.” The prosecutor conceded, “Well, sure it’s something,
    yeah, absolutely, absolutely.”
    DICKEY V. DAVIS                     25
    meetings with Buchanan, not the “couple of” meetings he
    posited in the questions he had posed to Buchanan at trial.
    B
    The last reasoned state-court decision addressing
    Dickey’s Napue claim is the California Supreme Court’s
    decision denying his direct appeal. Dickey, 
    111 P.3d at
    936–
    38. The court rejected Dickey’s Napue claim based on
    Buchanan’s false and misleading testimony that personnel
    from the prosecutor’s office had not bought him “a single
    thing.” 
    Id.
     at 937–38. Focusing on the trial colloquy in
    which Hahus elicited responses to contrast the favors
    Buchanan received from the defense (beer on three
    occasions, lunch, and a pair of shoes) with the benefits
    provided to Buchanan by the prosecution, the court agreed
    that the prosecutor had knowingly created the false
    impression “that unlike the defense, the prosecution had
    done nothing for Buchanan that might reflect on his
    credibility.” 
    Id.
     The California Supreme Court observed
    that the prosecutor “sought to exploit the false impression he
    had created” in his closing argument, but concluded that
    Dickey had not met his burden of showing the false
    testimony was material. 
    Id.
     at 937–38. The court reasoned,
    “in light of other information the jury had about Buchanan’s
    arrangement with the proprietor of the boarding house, as
    well as other indications of his interest in obtaining the
    reward, the prosecutor’s action was harmless beyond a
    reasonable doubt.” 
    Id. at 937
    ; see also Bagley, 
    473 U.S. at
    679–80, 679 n.9 (opinion of Blackmun, J.). The court did
    not mention Buchanan’s false testimony that he had met with
    Hahus only “a couple of times.”
    In a separate section of its decision discussing Dickey’s
    challenge to the sufficiency of the evidence supporting the
    26                     DICKEY V. DAVIS
    special circumstances, the California Supreme Court also
    observed that “Buchanan’s testimony as to [Dickey’s]
    statement did not occur in a vacuum.” Dickey, 
    111 P.3d at 934
    . The court concluded there was other evidence
    sufficient to support an intent-to-kill finding, although the
    prosecution did not rely on it. 
    Id.
     The court explained:
    Under the evidence, the jury was entitled to
    reach the following conclusions: The cord
    found around Mr. Freiri’s neck came from
    the venetian blind in defendants [sic]
    apartment, and defendant was responsible for
    bringing it to Mrs. Caton’s house. Defendant
    was also responsible for bringing the knife
    used to stab Mrs. Caton and Mr. Freiri.
    Defendant knew his intended victims were
    elderly and that Mr. Freiri was partially
    paralyzed, and so he could not have believed
    he and Cullumber, both younger men, needed
    the knife to commit the robberies. Therefore,
    defendant intended to kill, and not just rob,
    Mrs. Caton and Mr. Freiri. Moreover,
    defendant knew he could not escape justice if
    Mr. Freiri were left alive. Defendant had
    gained entry by saying he needed to use the
    phone because Cullumber was going to jail.
    Even if Mr. Freiri did not recognize
    defendant, he must have known Cullumber,
    who was an almost daily visitor to his
    grandmother’s home. Mr. Freiri would have
    led the police to Cullumber, and Cullumber
    would have led them to defendant.
    
    Id.
    DICKEY V. DAVIS                             27
    Though the decision on Dickey’s direct appeal did not
    address the Napue claim premised on the number of pretrial
    meetings Buchanan had with Hahus, 
    id.,
     the State did not
    contest at oral argument before our court that the prosecutor
    knowingly failed to correct Buchanan’s false or misleading
    testimony that he met with Hahus only “a couple of times”
    before trial. We therefore assume the California Supreme
    Court denied Dickey’s Napue claim regarding Buchanan’s
    pretrial meetings with Hahus on the merits, see Cullen, 
    563 U.S. at
    187–88; Richter, 
    562 U.S. at
    99–100, and in light of
    Hahus’s post-trial testimony that he met with Buchanan
    “probably a dozen times before the trial,” we assume the
    California Supreme Court relied on materiality.8
    8
    Contrary to its position at oral argument, the State’s brief suggests
    Hahus had no duty under Napue to correct Buchanan’s statement that
    personnel from the prosecutor’s office had not given him “a single
    thing.” This suggestion seems to be premised on the theory that because
    the State had produced the housing agreement, defense counsel could
    have cross-examined Buchanan and established that his testimony was
    false. The only authority the State cites for its argument that “failure to
    disclose” is a “necessary part of [a] Napue claim” is a footnote in Imbler
    v. Pachtman, 
    424 U.S. 409
     (1975). In that footnote, the Supreme Court
    merely made the point that Napue violations can be reframed as Brady
    violations if the prosecution does not disclose evidence that shows
    testimony is false. See Imbler, 424 U.S. at 431 n.34. The State’s
    suggestion that there was no Napue violation here is unsupported by
    Supreme Court authority and contrary to our decision in United States v.
    LaPage, 
    231 F.3d 488
    , 492 (9th Cir. 2000) (“[T]he government’s duty
    to correct perjury by its witnesses is not discharged merely because
    defense counsel knows, and the jury may figure out, that the testimony
    is false.”). See also Soto v. Ryan, 
    760 F.3d 947
    , 968 n.11 (9th Cir. 2014);
    Sivak v. Hardison, 
    658 F.3d 898
    , 909 (9th Cir. 2011); United States v.
    Alli, 
    344 F.3d 1002
    , 1007 (9th Cir. 2003). We agree with the California
    Supreme Court’s conclusion that the prosecutor did not fulfill his duty to
    correct Buchanan’s false and misleading testimony. See Napue, 
    360 U.S. at
    269–70.
    28                     DICKEY V. DAVIS
    C
    Two backdrops inform our analysis of Dickey’s penalty-
    phase Napue claims. The first is the egregious lie Buchanan
    told Hahus, months before trial, that another prosecutor in
    Hahus’s office had agreed to drop felony charges against
    him and keep that deal off the record so Dickey’s counsel
    would not learn of it. The prosecutor’s failure to produce his
    notes of their conversation is the basis of one of Dickey’s
    Brady claims. The episode is a critical backdrop to the
    Napue claim because it put Hahus on notice that Buchanan
    was willing to lie if doing so served his own interests, even
    if the lie concerned a matter of considerable importance and
    even if the lie would inevitably be discovered.
    The second backdrop for Dickey’s Napue claims is the
    undeniable centrality of Buchanan’s testimony to the State’s
    special-circumstances case. The State’s case for imposition
    of the death penalty depended on showing that Dickey
    harbored an intent to kill, and by Hahus’s admission, “[t]he
    special circumstance finding came from the testimony of
    Buchanan.” Dickey points to the State’s thin circumstantial
    evidence of his role, and argues that the entire basis for the
    State’s argument that he harbored an intent to kill was
    Buchanan’s testimony attributing to Dickey the thought: “if
    you kill one you might as well kill them both.” Buchanan
    was clear that this was something Dickey thought, not
    something he said when the crimes were committed, but the
    meaning and circumstances under which Dickey allegedly
    had this thought were never explained. Importantly,
    Goldman’s account of the conversation she had with Dickey
    in the bedroom of the Harvard Avenue apartment made no
    mention of Dickey expressing this thought.
    DICKEY V. DAVIS                             29
    The importance of Buchanan’s testimony was not lost on
    the trial court. In response to Dickey’s mid-trial motion for
    acquittal based on insufficient evidence, the court discussed
    with counsel whether Buchanan’s testimony regarding
    Dickey’s thought was sufficient by itself to show intent to
    kill. In response, Hahus initially pointed to evidence that
    either Cullumber or Dickey took weapons with them on the
    night of the murder and argued such evidence also “clearly
    show[ed] intent to kill.” But Hahus backtracked moments
    later and clarified that he “misspoke” and that “[t]he physical
    evidence [was] not directed at the intent to kill” but rather
    “show[ed] an aiding or abetting in the deaths.” Before our
    court, however, the State backtracks again and argues that
    the California Supreme Court reasonably relied on both the
    physical evidence and Goldman’s testimony as supporting
    the State’s case that Dickey acted with the requisite intent to
    kill.
    There is no question the State’s case that Dickey acted
    with intent to kill was weak and circumstantial. There was
    no direct testimony or physical evidence of Dickey’s
    involvement in the killing of either Caton or Freiri. The
    State identified Dickey’s thumbprint on a blind collected
    from the Harvard Avenue apartment, but it is neither
    surprising nor incriminating that Dickey’s thumbprint would
    be found on a blind taken from the home where he lived,9
    and the State’s expert was unable to conclude a cord sample
    9
    Investigator Mike Hall was able to locate and lift only one identifiable
    fingerprint from a slat on the venetian blind, and it matched Dickey’s
    thumbprint. Dickey testified that his thumbprint was on the slat of the
    blind because he picked it up when it fell off the door and he placed it in
    the hall closet.
    30                         DICKEY V. DAVIS
    from the Harvard Avenue apartment blinds matched the cord
    used in the crime.
    The circumstantial evidence that Dickey took a weapon
    to Caton’s house was scant and contradicted. Detective
    Stokes testified that Goldman told him she saw Dickey
    remove a knife from the silverware drawer on the night of
    the murders, but the jury heard Goldman’s testimony that she
    saw Dickey look in a drawer, that she was not sure which
    drawer, and that there was nothing unusual about Dickey’s
    behavior. Goldman did not testify that she saw Dickey take
    a knife—or anything else—from the kitchen drawer on the
    night of the murders. Buchanan testified that the knife found
    at Caton’s house looked similar to one Goldman owned and
    that he had last seen that knife lying on a bed at the Harvard
    Avenue apartment. This certainly implied that the knife used
    in the murders may have come from the Harvard Avenue
    apartment, but Buchanan’s statement about the knife does
    not account for Goldman’s sworn testimony that she told
    Stokes that: “[My knife] is in storage with all my stuff that I
    have in storage.”10
    Worse for the State, Detective Stokes testified that
    Goldman told him Dickey retrieved a blind from the hall
    closet on the night of the murders, but the jury heard
    Goldman’s recorded pretrial testimony that she saw
    Cullumber, not Dickey, get a blind out of the hall closet and
    take it into the bedroom. Detective Stokes’s testimony also
    conflicted with Goldman’s concerning the origin of the
    missing cord; he testified that Goldman told him the blind
    from the hall closet was missing a cord, but Goldman
    10
    The California Supreme Court’s opinion did not mention Goldman’s
    testimony that her knife was in storage. See Dickey, 
    111 P.3d at
    928–29.
    DICKEY V. DAVIS                     31
    testified the blind from the bedroom was missing a cord.
    And as explained, the jury heard criminalist Gary Cortner
    testify that he could not conclude the cord found at the crime
    scene was the same cord or from the same spool as any of
    the samples taken from the blinds at the Harvard Avenue
    apartment.
    The record provides little support for the State’s
    argument that Goldman’s testimony provided evidence that
    Dickey acted with intent to kill. Much of Goldman’s actual
    testimony was not favorable to the prosecution, and the State
    relied heavily on Detective Stokes’s account of what
    Goldman told him about the night of the murders. See
    Dickey, 
    111 P.3d at 929
    .            Stokes’s testimony was
    problematic for the State, not only because it was
    contradicted in several key respects by Goldman’s pretrial
    testimony, but also because Stokes was forced to retract
    some of it. Most notably, the jury heard Stokes testify in
    some detail that Goldman told him she overheard Cullumber
    and Dickey talking about an “easy ripoff” and “money being
    hid” while getting dressed to go out together on the night of
    the murders.      But Stokes acknowledged on cross-
    examination that Goldman had never said these things and
    abruptly recanted this part of his testimony:
    Q. And yesterday you testified that she -- that
    she said she heard them talk about an easy
    ripoff?
    A. Yes.
    Q. That’s not in your report, is it?
    A. Not in this area, no.
    32                      DICKEY V. DAVIS
    Q. Is it -- attributed as a statement from Gail
    [Goldman], is that in your report anywhere?
    A. No.
    Q. Gail [Goldman] didn’t say that, did she?
    A. No.
    Q. Gail [Goldman] didn’t say she saw
    anybody getting dressed to go out, did she?
    A. Getting dressed to go out?
    Q. Yeah, putting on hats and gloves and stuff
    like that?
    A. No.
    Q. That was your testimony yesterday,
    wasn’t it?
    A. Yes.
    Q. That was wrong, wasn’t it?
    A. Yes.
    In short, this is not a case in which the State’s star witness
    had credibility problems that were rendered harmless by
    physical evidence or the testimony of other witnesses.
    Buchanan’s ambiguous statement that Dickey thought to
    himself—at some point, before or after the murders—“if you
    kill one you might as well kill them both” was the State’s
    best evidence that Dickey acted with intent to kill, and
    Buchanan’s testimony on this point was unsupported by
    other evidence. As Hahus testified at the hearing on
    Dickey’s motion for a new trial, “[t]he special circumstance
    finding came from the testimony of Buchanan.” Because
    Buchanan was the only one who testified that Dickey
    DICKEY V. DAVIS                     33
    expressed that thought, Buchanan’s credibility was
    absolutely critical to the State’s special-circumstances case.
    On multiple occasions, the Supreme Court has found
    perjured testimony material under Napue when it bore on the
    credibility of a witness upon whom “the Government’s case
    depended almost entirely.” Giglio, 
    405 U.S. at 154
    . In
    Napue itself, for example, the Court concluded the perjured
    testimony was material because it concerned the credibility
    of the State’s “principal witness,” whose testimony “was
    extremely important because the passage of time and the dim
    light [at the scene of the crime] made eyewitness
    identification very difficult and uncertain, and because some
    pertinent witnesses had left the state.” 
    360 U.S. at
    265–66;
    see also Giglio, 
    405 U.S. at
    154–55 (finding Napue’s
    materiality standard satisfied when a prosecutor falsely
    stated the State’s star witness had not been promised
    immunity because this evidence “would be relevant to [the
    witness’s] credibility and the jury was entitled to know of
    it”); Alcorta, 
    355 U.S. at
    29–32 (finding Napue violation
    material because correcting false testimony from the only
    eyewitness to a murder would have impeached his credibility
    and corroborated the defendant’s “sudden passion” defense).
    Here, the California Supreme Court concluded the
    State’s failure to correct Buchanan’s false and misleading
    testimony about his housing-on-credit arrangement was
    immaterial because the jury already knew of the arrangement
    and Buchanan’s desire to obtain the $5,000 reward. Dickey,
    
    111 P.3d at
    937–38. The court also noted that the jury heard
    evidence of Buchanan’s drug addiction and that Buchanan
    and Dickey intensely disliked each other. 
    Id. at 931
    , 937–
    38. The State argues on appeal that the California Supreme
    Court’s materiality finding was reasonable because “there
    was already ample impeachment of Buchanan’s credibility
    34                     DICKEY V. DAVIS
    before the jury,” including (1) Buchanan’s chronic use of
    illegal drugs; (2) the fact that he admitted using drugs close
    to the time he heard Dickey’s statement to Goldman in the
    bedroom; (3) Buchanan’s motivation to get the $5,000
    reward; and (4) Buchanan’s admitted antipathy toward
    Dickey.
    We disagree. Our starting point is recognition of
    Buchanan’s role as the State’s star witness. In Napue, the
    Supreme Court held that false and misleading testimony
    from the State’s star witness was not rendered cumulative or
    insignificant merely because the jury already had other
    reasons to distrust the witness. See Napue, 
    360 U.S. at 270
    .
    The prosecutor in Napue failed to correct the State’s primary
    witness’s false testimony that the State’s Attorney had not
    promised him consideration in exchange for his testimony.
    
    Id.
     at 266–67. The Illinois Supreme Court had ruled that the
    prosecutor’s misconduct was immaterial because “the jury
    had already been apprised that someone whom [the witness]
    had tentatively identified as being a public defender ‘was
    going to do what he could’” to help the witness, and “‘was
    trying to get something [done]’ for him.” 
    Id. at 268
    . The
    Supreme Court reversed. The Court explained, “[W]e do not
    believe that the fact that the jury was apprised of other
    grounds for believing that the witness . . . may have had an
    interest in testifying against petitioner turned what was
    otherwise a tainted trial into a fair one.” 
    Id. at 270
    .
    In the case before us, to conclude Buchanan’s false and
    misleading testimony was harmless, it was necessary for the
    state court to decide there was no reasonable likelihood that
    his testimony could have made a difference to the jury’s
    imposition of the death penalty. The California Supreme
    Court did not expressly acknowledge Buchanan’s pivotal
    role at trial, but we must assume this was factored into its
    DICKEY V. DAVIS                      35
    materiality analysis. The state court’s decision did recognize
    that Hahus “knowingly exploited” Buchanan’s false and
    misleading testimony about his housing arrangement by
    repeatedly relying on it to bolster Buchanan’s otherwise
    tarnished credibility, see Dickey, 
    111 P.3d at 937
    , and the
    court’s materiality ruling considered that the prosecutor’s
    closing argument contrasted Buchanan’s testimony that he
    received no favors from the prosecution with his testimony
    that the defense investigator bought him things like beer,
    lunch, and a pair of shoes, 
    id. at 938
    . The court did not
    acknowledge Buchanan’s false testimony, in answer to
    Hahus’s leading question, that he had met with Hahus only
    “a couple of times.” 
    Id.
     at 937–38.
    The state-court decision analyzed Buchanan’s false and
    misleading testimony only as cumulative evidence that
    Buchanan was biased against Dickey and motivated to
    ensure his conviction. Evidence that Buchanan had actually
    lied on the witness stand was an entirely new category of
    impeachment evidence that could have gutted the State’s use
    of § 128 to shore up Buchanan’s credibility. It would have
    given the jury reason to doubt Buchanan’s veracity in
    court—not just his reliability as an addict, or his impartiality
    as a person motivated by a reward. None of the evidence the
    state court identified in its materiality analysis gave the jury
    reason to know that Buchanan was willing to lie to them
    under oath—or to know that he had lied to them under oath.
    The significance of the State’s star witness having done so,
    immediately after being advised in open court of the stark
    consequences of § 128, is hard to overstate. Hahus’s
    deliberate solicitation of, and failure to correct, Buchanan’s
    false testimony was entirely contrary to Napue’s directive
    that courts safeguard the “truth-seeking function of the trial
    process.” Agurs, 
    427 U.S. at 103
    .
    36                     DICKEY V. DAVIS
    The State argues the state court could have reasonably
    decided that, if the jury had learned about the prosecution’s
    role in Buchanan’s housing arrangement, the jury would
    have simply “concluded that the prosecutor’s office has a
    generally applicable policy to offer non-monetary housing
    assistance for its witnesses before the trial” and that “any
    housing assistance was for the purpose of keeping track of
    witnesses, not as an inducement to stray from the [] duty to
    testify truthfully.” Regarding the number of pretrial
    meetings with Hahus, the State contends the court’s
    materiality finding was reasonable because the jury still
    would have concluded that Buchanan was “neither prepared
    nor scripted” because his trial testimony was “fraught with
    inconsistencies, tangents and biases.” But the Supreme
    Court has emphasized the opposite.
    The Court has explained that, when considering
    materiality under the more demanding Brady standard, “if
    the verdict is already of questionable validity, additional
    evidence of relatively minor importance might be sufficient
    to create a reasonable doubt.” 
    Id.
     The other inconsistencies
    and evidence of Buchanan’s bias therefore reinforce the
    conclusion that, if the jury had known that at least some of
    Buchanan’s testimony had in fact been false, it could have
    easily made a difference to the outcome. Even “subtle
    factors” may be enough to find Napue materiality when
    “[t]he jury’s estimate of the truthfulness and reliability of a
    given witness may well be determinative of guilt or
    innocence.” Napue, 
    360 U.S. at 269
    . Here, the jury’s
    special-circumstances finding certainly turned on its
    assessment of Buchanan’s veracity.
    In light of Buchanan’s pivotal role at trial and the weak
    evidence that Dickey acted with intent to kill, we are
    persuaded that this is the rare case in which AEDPA’s
    DICKEY V. DAVIS                     37
    deferential standard is satisfied. The conclusion that there
    was no reasonable likelihood that correcting Buchanan’s
    false testimony could have changed the jury’s special-
    circumstances decision was both clearly incorrect and an
    objectively unreasonable application of clearly established
    federal law.
    D
    On de novo review of Dickey’s Napue claim, we reach
    the same result. See Panetti, 
    551 U.S. at 953
    ; Jones, 52 F.4th
    at 1115. The prosecution’s failure to correct Buchanan’s
    false and misleading testimony was material because
    Buchanan’s testimony was the centerpiece of the State’s case
    in support of the special-circumstances finding. We can see
    no room to doubt that, if the jury had known Buchanan
    testified falsely, there was a reasonable likelihood that this
    could have affected its decision to impose a capital sentence.
    See Agurs, 
    427 U.S. at 103
    ; Bagley, 
    473 U.S. at 678
     (opinion
    of Blackmun, J.). This conclusion accords with our circuit
    precedent holding that “[t]here is a substantial difference
    between ‘general evidence of untrustworthiness and specific
    evidence that a witness has lied.’” Sivak, 
    658 F.3d at 916
    (quoting Benn v. Lambert, 
    283 F.3d 1040
    , 1056–57 (9th Cir.
    2002)); see also Jackson v. Brown, 
    513 F.3d 1057
    , 1077 (9th
    Cir. 2008) (finding Napue materiality because revealing a
    key witness’s “obvious willingness to lie under oath” would
    have “cast doubt on his entire testimony”). As we explained
    in Sivak, correcting a witness’s false sworn testimony can
    make a powerful difference in the jury’s assessment of the
    witness’s trustworthiness:
    [I]f a witness’s false testimony is corrected
    by the prosecution, his “willingness to lie
    under oath” is exposed and his credibility is
    38                     DICKEY V. DAVIS
    irreparably damaged. There is a substantial
    difference between “general evidence of
    untrustworthiness and specific evidence that
    a witness has lied.” “All the other evidence
    used by the defense to punch holes in the
    informant’s credibility amount[s] only to
    circumstantial reasons why the informant
    might alter the truth to continue to feather his
    own nest. A lie would be direct proof of this
    concern, eliminating the need for inferences.”
    
    658 F.3d at 916
     (second alteration in original) (citations
    omitted) (first quoting Jackson, 
    513 F.3d at 1077
    ; then
    quoting Benn, 
    283 F.3d at
    1056–57; and then quoting 
    id. at 1057
    ). Here, if Hahus had corrected Buchanan’s testimony,
    there is clearly a “reasonable likelihood that the false
    testimony could have affected the judgment of the jury.”
    Agurs, 
    427 U.S. at 103
    .
    We are particularly troubled that Hahus used leading
    questions to elicit Buchanan’s false testimony. Unlike
    Napue violations in cases where witnesses have
    unexpectedly blurted out a misstatement or surprised a
    prosecutor with an embellished or volunteered response,
    Buchanan’s false and misleading testimony came in the form
    of affirmative answers to Hahus’s prompts—hence, the
    California Supreme Court’s apt description that the
    prosecutor’s closing argument “sought to exploit the false
    impression he had created.” Dickey, 
    111 P.3d at 938
    (emphasis added). Given the weight the prosecutor put on
    Buchanan’s credibility in his closing argument, imploring
    the jury that Buchanan deserved for them to believe him, and
    the prosecutor’s frank assessment at the post-trial hearing
    that Buchanan’s testimony comprised nearly the entirety of
    DICKEY V. DAVIS                             39
    the State’s evidence of intent to kill, we do not hesitate to
    conclude there was a reasonable likelihood that the State’s
    failure to correct Buchanan’s testimony could have affected
    the jury’s special-circumstances finding.11 We therefore
    reverse the district court’s decision as to Dickey’s penalty-
    phase Napue claim and do not reach the merits of any of
    Dickey’s other penalty-phase claims.
    V
    We affirm the denial of Dickey’s certified guilt-phase
    claims related to his conviction for aiding and abetting the
    11
    To grant habeas relief on a claim of trial error, we generally assess the
    error’s prejudicial effect under Brecht v. Abrahamson, which requires
    “actual prejudice.” 
    507 U.S. 619
    , 637 (1993) (quoting United States v.
    Lane, 
    474 U.S. 438
    , 449 (1986)); see also Brown v. Davenport, 
    142 S. Ct. 1510
    , 1519 (2022). We recognize, however, that the circuits have
    split on whether the Brecht standard applies when reviewing a state
    court’s Napue determination. Compare Haskell v. Superintendent
    Greene SCI, 
    866 F.3d 139
    , 150 (3d Cir. 2017) (declining to apply Brecht
    to a claim of Napue error), and Hayes, 
    399 F.3d at 984
    , with United
    States v. Clay, 
    720 F.3d 1021
    , 1026–27 (8th Cir. 2013) (applying Brecht
    to a Napue claim), Trepal v. Sec’y, Fla. Dep’t of Corr., 
    684 F.3d 1088
    ,
    1111–13 (11th Cir. 2012), Rosencrantz v. Lafler, 
    568 F.3d 577
    , 587–90
    (6th Cir. 2009), Douglas v. Workman, 
    560 F.3d 1156
    , 1173 n.12 (10th
    Cir. 2009) (per curiam), and Gilday v. Callahan, 
    59 F.3d 257
    , 268 (1st
    Cir. 1995). Our circuit has continued to apply the materiality standard
    specific to Napue claims, reasoning that “there is no need to conduct a
    separate harmless error analysis” when “the required finding of [Napue]
    materiality necessarily compels the conclusion that the error was not
    harmless.” Hayes, 
    399 F.3d at
    984 (citing Kyles v. Whitley, 
    514 U.S. 419
    , 435 (1995)). Regardless, applying Brecht would not change our
    materiality conclusion here because the State’s failure to correct
    Buchanan’s false testimony leaves us with “grave doubt” about whether
    the error had “substantial and injurious effect or influence in determining
    the jury’s verdict.” Davis v. Ayala, 
    576 U.S. 257
    , 268 (2015) (quoting
    O’Neal v. McAninch, 
    513 U.S. 432
    , 436 (1995)).
    40                          DICKEY V. DAVIS
    underlying robbery. Dickey makes five claims relevant to
    the guilt phase: (1) the State violated Napue by knowingly
    using false testimony; (2) the State withheld favorable and
    material evidence in violation of Brady; (3) his trial counsel,
    Marvin Schultz, rendered ineffective assistance of counsel
    by failing to investigate and impeach Buchanan and,
    relatedly, by failing to interview and call Strickland as a
    witness regarding the housing arrangement; (4) Schultz was
    ineffective for seeking to empanel a pro-death jury; and (5)
    Schultz was ineffective for failing to withdraw as counsel
    due to an irreconcilable conflict with Dickey.12 The
    California Supreme Court rejected the first three of these
    claims on direct review. See Dickey, 
    111 P.3d at
    936–38,
    937 n.9. Dickey raised the first four claims in his first state
    habeas petition and the last claim in his second petition. The
    California Supreme Court denied all five claims on the
    merits without offering its reasoning.
    We first conclude the state court reasonably determined
    that the State’s Napue and Brady violations were not
    material to the jury’s guilt-phase verdict and that Schultz’s
    failure to investigate and impeach Buchanan was not
    prejudicial in the guilt phase.        Unlike the special-
    circumstances finding, Buchanan did not provide the only
    key evidence of Dickey’s participation in the robbery and
    burglary. Goldman’s statements corroborated some of
    12
    Dickey also argues, based on the facts underlying the fifth claim, that:
    (1) the trial court erred by failing to conduct a Marsden hearing and order
    substitute counsel for the penalty phase when it learned after the guilt
    phase that Dickey’s relationship with Schultz had deteriorated; and (2)
    Schultz rendered ineffective assistance of counsel by failing to know the
    law regarding Marsden or request substitute counsel for Dickey.
    Because we grant relief on Dickey’s Napue claim pertaining to
    imposition of the death penalty, we do not reach these claims.
    DICKEY V. DAVIS                    41
    Buchanan’s testimony and linked Dickey to the crimes. For
    example, Goldman’s observations of Dickey on the night of
    the crimes corroborated Buchanan’s testimony that Dickey
    admitted going to Caton’s house to steal money. Goldman
    also corroborated Buchanan’s testimony that Cullumber and
    Dickey left the apartment together and did not have any
    money, but when they returned, one or both of them had
    money. Both Buchanan and Goldman recalled that two days
    after the crimes, Dickey confessed that he and Cullumber
    went to Caton’s house to steal money and when Dickey was
    in the bedroom of the house, he heard a commotion and then
    saw Freiri slumped over in a chair.
    Because Buchanan was not the sole witness who
    provided critical evidence that Dickey confessed to
    Goldman that he aided and abetted the robbery and burglary,
    the California Supreme Court did not unreasonably
    determine that there was no reasonable likelihood the
    prosecution’s Napue and Brady violations could have
    changed the jury’s guilty verdicts. For the same reason, the
    California Supreme Court reasonably concluded that
    Schultz’s failure to investigate and impeach Buchanan and
    his failure to call Strickland as a witness regarding the
    housing arrangement did not result in guilt-phase prejudice.
    See Richter, 
    562 U.S. at 105
    ; Strickland v. Washington, 
    466 U.S. 668
    , 694 (1984).
    Separately, we conclude the California Supreme Court
    could have reasonably determined that Dickey failed to show
    guilt-phase prejudice stemming from Schultz’s strategy of
    seeking to select jurors who were predisposed to vote for the
    death penalty. Schultz explained that he pursued this
    strategy because he felt that jurors who “tend to be more pro
    death once they f[ind] guilt” also “demand[] they be
    absolutely positively convinced of the defendant’s guilt” and
    42                          DICKEY V. DAVIS
    therefore are “more demanding of the quantum and quality
    of prosecution evidence” during the guilt phase. Because the
    California Supreme Court did not address this claim on
    direct review, we consider what arguments could have
    supported the court’s rejection of the claim. See Richter, 
    562 U.S. at
    99–102. Dickey asserts that he need not show
    prejudice because Schultz’s jury-selection strategy falls
    under an exception to the Strickland prejudice requirement
    that applies when “counsel entirely fails to subject the
    prosecution’s case to meaningful adversarial testing.” See
    United States v. Cronic, 
    466 U.S. 648
    , 659 (1984). But the
    exception Dickey relies upon is only applicable “when the
    attorney’s failure to oppose the prosecution goes to the
    proceedings as a whole—not when the failure occurs only at
    specific points in the trial.” Gallegos v. Ryan, 
    820 F.3d 1013
    , 1034 (9th Cir. 2016) (emphasis added) (quoting
    United States v. Thomas, 
    417 F.3d 1053
    , 1057 (9th Cir.
    2005)). Assuming that Schultz’s strategy constituted
    deficient performance, Dickey therefore still must show the
    strategy resulted in prejudice.
    Dickey argues that Schultz’s strategy was prejudicial
    because studies have found that pro-death-penalty jurors are
    also more prone to vote for conviction.13 Without more, this
    speculative argument is insufficient. Establishing prejudice
    “in the context of juror selection” requires a “showing that,
    as a result of trial counsel’s failure to exercise peremptory
    challenges, the jury panel contained at least one juror who
    13
    Dickey also suggests that Schultz’s strategy was prejudicial because it
    resulted in a jury that was not “reflective of a cross-section of society.”
    This argument is foreclosed by the Supreme Court’s decision in Lockhart
    v. McCree, which held that the representative cross-section requirement
    does not apply to petit juries. 
    476 U.S. 162
    , 174 (1986).
    DICKEY V. DAVIS                              43
    was biased.” Davis v. Woodford, 
    384 F.3d 628
    , 643 (9th Cir.
    2004). A juror is biased if he or she has “such fixed opinions
    that [he or she] could not judge impartially the guilt of the
    defendant.” United States v. Quintero-Barraza, 
    78 F.3d 1344
    , 1349 (9th Cir. 1995) (quoting Patton v. Yount, 
    467 U.S. 1025
    , 1035 (1984)). All seated jurors in Dickey’s trial
    stated they could “follow the law and the trial court’s
    instructions; put aside personal feelings and remain open-
    minded and consider all facts and circumstances of the
    crimes in making the penalty determination; and stated that
    the possibility of a death sentence would not affect his or her
    guilt phase determination.” Dickey, 
    231 F. Supp. 3d at 671
    ;
    see also Lockhart, 
    476 U.S. at 178
     (rejecting the argument
    that a jury composed of jurors willing to impose the death
    penalty is biased because “an impartial jury consists of
    nothing more than ‘jurors who will conscientiously apply the
    law and find the facts’” (emphasis omitted) (quoting
    Wainwright v. Witt, 
    469 U.S. 412
    , 423 (1985))). We
    therefore conclude the California Supreme Court could have
    reasonably determined that Dickey failed to show guilt-
    phase prejudice resulting from Schultz’s jury-selection
    strategy.14
    Third, we conclude the California Supreme Court could
    have reasonably denied Dickey’s claim that Schultz should
    have withdrawn based on an irreconcilable conflict. The
    14
    The State asserts that Dickey’s claim that Schultz’s strategy resulted
    in a biased jury is procedurally barred because it was not timely
    presented in state court. We do not address the State’s argument because
    we conclude this claim fails on the merits. See Franklin v. Johnson, 
    290 F.3d 1223
    , 1232 (9th Cir. 2002) (“[A]ppeals courts are empowered to,
    and in some cases should, reach the merits of habeas petitions if they are
    . . . clearly not meritorious despite an asserted procedural bar.”); see also
    Ayala v. Chappell, 
    829 F.3d 1081
    , 1095–96 (9th Cir. 2016).
    44                            DICKEY V. DAVIS
    Supreme Court “has never held that an irreconcilable
    conflict with one’s attorney constitutes a per se denial of the
    right to effective counsel,” Carter v. Davis, 
    946 F.3d 489
    ,
    508 (9th Cir. 2019) (per curiam), and Dickey does not
    identify how Schultz’s failure to withdraw prior to the guilty
    verdict resulted in prejudice. Because AEDPA “conditions
    habeas relief on a determination that the state-court decision
    unreasonably applied ‘clearly established Federal law’ as
    pronounced by the U.S. Supreme Court,” Dickey is not
    entitled to relief on this claim. 
    Id.
     (quoting 
    28 U.S.C. § 2254
    (d)(1)).
    VI
    We reverse and remand to the district court with
    instructions to grant a conditional writ of habeas corpus as
    to the special-circumstances findings and the imposition of
    the death penalty. The State may either grant Dickey a new
    trial on the special-circumstances allegations within ninety
    days or agree that he may be sentenced to a penalty other
    than death in conformance with state law. See Phillips v.
    Ornoski, 
    673 F.3d 1168
    , 1197 (9th Cir. 2012). We affirm
    the district court’s holding as to Dickey’s certified guilt-
    phase claims, but do not reach the merits of any of Dickey’s
    uncertified guilt-phase claims or his non-Napue penalty-
    phase claims.
    AFFIRMED IN PART, REVERSED IN PART, AND
    REMANDED.15
    15
    Costs are taxed against the State. See Fed R. App. P. 39(a)(4).