Boss, Randy v. Pierce, Guy ( 2001 )


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  • In the
    United States Court of Appeals
    For the Seventh Circuit
    No. 98-3665
    Randy Boss and Revell Boss,
    Petitioners-Appellants,
    v.
    Guy Pierce and Mark A. Pierson,/*
    Respondents-Appellees.
    Appeal from the United States District Court
    for the Northern District of Illinois, Eastern Division.
    No. 97 C 2874--James B. Moran, Judge.
    Argued April 18, 2000--Decided August 31, 2001
    Before Flaum, Chief Judge, and Ripple, and
    Williams, Circuit Judges.
    Williams, Circuit Judge. Randy and
    Revell Boss/1 seek writs of habeas
    corpus overturning their state robbery
    and murder convictions. They argue that
    during their trial prosecutors
    unconstitutionally withheld from them
    material evidence favorable to their
    defense, in violation of Brady v.
    Maryland, 
    373 U.S. 83
    (1963). The
    district court concluded that this
    argument did not warrant habeas corpus
    relief. Because we believe the Bosses
    have adequately established the elements
    of a Brady violation, we reverse.
    I.   BACKGROUND
    A.   The Facts
    At the Bosses’ joint trial, the state
    sought to prove that the Bosses, along
    with two co-defendants who were tried
    separately, Nikia Harris and Corey
    Carter, robbed and beat to death Eugene
    Oliver, a 52-year-old neighborhood
    resident. Robert McAfee, a teenager at
    the time of the attack, was the only
    witness the government called to testify
    about the robbery and murder./2 His
    direct testimony is summarized below.
    McAfee was riding his bicycle home from
    Garfield Park in Chicago on September 6,
    1993, at approximately 10:45 p.m. He
    stopped at the corner of Franklin and
    Drake and talked to a girl who was
    leaning out of a window. After about a
    minute, the conversation ended, and
    McAfee saw four men and a woman standing
    across the street outside the senior
    citizens’ home, drinking beer. Although
    he did not recognize the woman, he
    recognized the four men--Randy, Revell
    (identified as "Vell"), Keater, and
    Corey./3
    While still looking across the street,
    McAfee saw Eugene Oliver leave the senior
    citizens’ home and walk toward Franklin.
    Randy, Vell, Keater, and Corey followed
    Oliver. As they walked to the corner of
    Franklin and Drake, Randy approached
    McAfee and asked if he could use his
    bicycle. After McAfee refused, Randy
    simply took the bicycle and rode off.
    McAfee gave chase.
    Meanwhile, Oliver had turned left onto
    Franklin and walked to Central Park. On
    McAfee’s bicycle, Randy caught up with
    Oliver and threw the bicycle at Oliver’s
    legs, which caused Oliver to fall to the
    ground. Although McAfee could not
    remember where they came from, Vell,
    Keater, and Corey had by this point made
    their way to Central Park. All four began
    to beat Oliver. They repeatedly kicked
    Oliver in the face and on his side. Randy
    picked up the bicycle and threw it on
    Oliver’s head three times. The beating
    lasted about a minute, and left Oliver
    motionless on the ground. Afterwards,
    Randy reached into Oliver’s pocket and
    removed something.
    As Randy, Vell, Keater, and Corey left
    the scene of the attack, they walked past
    McAfee, who had seen the attack from
    across the street. Randy told McAfee,
    "Don’t say nothing, don’t tell nobody."
    McAfee also noticed that Randy had a $20
    bill in his hand, and he heard Randy
    talking about purchasing some beer.
    Once they were gone, McAfee retrieved
    his bicycle from the park./4 The crank
    was so bent he had to push the bicycle
    home. Because of Randy’s threat, McAfee
    kept quiet about Oliver’s beating until
    he was questioned by the police.
    At trial, during cross-examination,
    defense counsel questioned McAfee about a
    juvenile manslaughter adjudication that
    arose out of his accidental shooting of a
    friend, for which he was still on
    probation. McAfee admitted that he first
    lied to the police regarding his role in
    his friend’s death because he was scared.
    With respect to the Oliver beating, he
    admitted that he was scared when the
    police brought him in for questioning.
    Defense counsel also elicited testimony
    from McAfee suggesting that the police
    may have initially suspected him as
    having been involved in the attack on
    Oliver./5
    The four witnesses called by the defense
    told a different story. Antonio Shanklin
    testified that he saw four or five boys
    who he had never seen before beating
    Oliver. He identified McAfee as the one
    who picked up a bicycle and hit Oliver
    with it. Afterwards, McAfee fixed the
    chain on the bicycle and rode off,
    joining the other boys who had begun to
    flee the scene. As they fled, they went
    past Shanklin, and he had a good chance
    to look at them.
    Shanklin also testified that he had
    known the Bosses for about three years,
    and he was certain they were not among
    the group of boys fleeing the scene. In
    fact, he stated that he saw Revell on the
    east side of Central Park while Oliver
    was being beaten on the west side of the
    park. On cross-examination, Shanklin
    admitted that he came forward to testify
    at the request of the Bosses’ family./6
    Contina Hill, Randy’s girlfriend and his
    child’s mother, stated that on the day of
    the crime, Randy was with her at the
    apartment she shares with her mother and
    other family members, enjoying a Labor
    Day barbeque. He left the apartment only
    twice. Sometime in the afternoon, he went
    downstairs to the apartment of Corey
    Carter’s cousin, Gregory Carter. That
    night, he went out with Gregory and two
    other men and returned a short time later
    with beer. Randy left for good much later
    that night. Sometime late that night
    Revell came by and spent some time at the
    Hills’ apartment. Janice Hill, Contina’s
    sister, corroborated her sister’s
    testimony and added that when Randy left
    the apartment the second time, he was
    gone approximately 15 minutes.
    Tonya Gist, a neighbor of the Hills,
    testified that on the night of the crime,
    near Central Park, she saw McAfee
    fighting with an older man from the
    senior citizens’ home. She went home, and
    when she arrived, she saw Randy sitting
    on the back porch she shared with the
    Hills. He was still there when she locked
    the gate later that evening. Also, at
    some point during the evening, Gist saw
    Revell on the porch.
    On the last day of the Bosses’ two-day
    trial, the state gave the Bosses an
    investigative report summarizing an
    interview of Janice Hill conducted four
    days before the trial began. This report
    revealed that Janice told the state
    investigator information unknown to
    defense counsel: (1) that McAfee had been
    bragging to people about what he and his
    friends had done to Oliver; and (2) that
    McAfee had told Richard Mitchell that he
    had only implicated Randy, Revell, and
    the other defendants in the Oliver attack
    so that he would not get in trouble.
    Based on this information, defense
    counsel moved for a continuance so that
    they could locate Richard Mitchell. The
    trial judge denied the motion.
    The trial went forward, and the jury
    found Randy and Revell guilty of both
    first-degree murder and robbery. After
    the trial, but before sentencing, new
    defense counsel followed up on the Janice
    Hill information. Counsel located and
    talked to Richard Mitchell. According to
    Mitchell, McAfee admitted that he, not
    the defendants, had committed the
    offense. Counsel also collected written
    statements from Marcus Fowler and Ricky
    Boss to the same effect. Based on this
    material, counsel filed a motion for a
    new trial,/7 but the trial judge denied
    the motion. The trial judge then
    sentenced Randy to concurrent prison
    terms of fifty years for murder and seven
    years for robbery, and sentenced Revell
    to concurrent prison terms of forty years
    for murder and seven years for robbery.
    B.   Post-Conviction Proceedings
    The Bosses appealed their convictions to
    the Illinois Appellate Court, claiming,
    among other things, that the State’s
    Attorneys prosecuting their case violated
    Brady v. 
    Maryland, supra
    , by withholding
    the investigative report summarizing
    Janice Hill’s interview with the state
    investigator. The Appellate Court
    affirmed their convictions. In rejecting
    the Bosses’ Brady claim, the Appellate
    Court concluded that the Bosses could
    satisfy none of the requirements for a
    Brady claim, as the investigative report
    was not suppressed by the state,
    favorable to the defense, or material,
    under Brady. The Bosses sought review in
    the Illinois Supreme Court, but their
    petition was denied without an opinion.
    The Bosses then turned to federal court
    and filed a petition for a writ of habeas
    corpus in the District Court for the
    Northern District of Illinois, raising
    the same claims. Concluding that the
    information in the investigative report
    was not suppressed by the state, the
    district court denied the writ. The
    district court granted them a certificate
    of appealability, and the Bosses filed
    this appeal with respect to their Brady
    claim./8
    II.   ANALYSIS
    A. Habeas Corpus and 28 U.S.C. sec.
    2254(d)(1)
    In considering a habeas corpus petition
    filed by a state prisoner that challenges
    the prisoner’s conviction or sentence on
    legal grounds, federal courts employ the
    standards set forth in 28 U.S.C. sec.
    2254(d)(1). Under this provision, a
    federal court may grant a writ of habeas
    corpus only if the adjudication of the
    prisoner’s claims in state court resulted
    in a decision that "was contrary to, or
    involved an unreasonable application of,
    clearly established Federal law, as
    determined by the Supreme Court of the
    United States." As the Supreme Court
    explained in Williams v. Taylor, 
    529 U.S. 362
    (2000), section 2254(d)(1)
    establishes two independent grounds on
    which a federal court can grant habeas
    corpus relief: (1) if a state court
    decision is contrary to clearly
    established federal law, as determined by
    the Supreme Court, or (2) if a state
    court decision involves an unreasonable
    application of clearly established
    federal law, as determined by the Supreme
    Court. 
    Id. at 404-05;
    see also Washington
    v. Smith, 
    219 F.3d 620
    , 627-28 (7th Cir.
    2000).
    The "contrary to" standard requires a
    state court decision to be "substantially
    different from the relevant precedent of
    [the Supreme Court]." 
    Williams, 529 U.S. at 405
    . For example, a state court
    decision applying a rule that contradicts
    the governing law set forth by the
    Supreme Court would qualify, as would a
    decision that involves a set of facts ma
    terially indistinguishable from a Supreme
    Court case that arrives at a different
    result. 
    Id. at 405-06.
    By contrast, a
    state court decision that draws from
    Supreme Court precedent the correct legal
    rule and applies it in a factually
    distinguishable situation will not
    satisfy the "contrary to" standard, no
    matter how misguided the decision’s
    ultimate conclusion. 
    Id. at 406-07.
    Errors in the application of Supreme
    Court precedent are governed by the
    "unreasonable application of" standard.
    "A state-court decision that correctly
    identifies the governing legal rule but
    applies it unreasonably to the facts of a
    particular prisoner’s case" qualifies as
    a decision involving an unreasonable
    application of clearly established
    federal law. 
    Id. at 407-08.
    Whether an
    application of federal law is
    unreasonable is not a simple question to
    answer, as "unreasonable" is a difficult
    term to define without reference to a
    particular set of facts. Still, Williams
    provides guidance. First, reasonableness
    is judged objectively, not subjectively.
    
    Id. at 409-10.
    Thus, the fact that judges
    may disagree about the proper application
    of a precedent does not affect the
    reasonableness of a particular
    application of that precedent. Second,
    "an unreasonable application of federal
    law is different from an incorrect
    application of federal law." 
    Id. at 410
    (emphasis in original). Therefore, a
    federal court may not grant habeas corpus
    relief simply because it has
    independently concluded that the relevant
    state court decision misapplies clearly
    established federal law. The decision’s
    application of Supreme Court precedent
    must be so erroneous as to be
    unreasonable.
    In Williams, the Supreme Court also
    explained the meaning of the phrase
    "clearly established Federal law, as
    determined by the Supreme Court of the
    United States." It characterized the
    phrase as referring to "the holdings, as
    opposed to the dicta, of this Court’s
    decisions as of the time of the relevant
    state-court decision." 
    Id. at 412.
    There
    fore, in order to grant habeas corpus
    relief under section 2254(d)(1), a
    federal court must be able to point to
    the holding of a Supreme Court decision
    handed down before the state courts
    issued the decision under review.
    B.    Brady Violation
    With these standards in mind, we turn to
    the Bosses’ Brady claim. Under Brady v.
    
    Maryland, supra
    , and its progeny, the
    prosecution has an affirmative duty to
    disclose evidence that is both favorable
    to the defense and material to either
    guilt or punishment. Kyles v. Whitley,
    
    514 U.S. 419
    , 432-34 (1995); United
    States v. Bagley, 
    473 U.S. 667
    , 674-75
    (1985); 
    Brady, 373 U.S. at 87
    . The
    suppression of such evidence deprives the
    defendant of a fair trial and thus
    violates due process. 
    Brady, 373 U.S. at 86-87
    . To establish a Brady violation, a
    defendant must demonstrate that (1) the
    prosecution suppressed evidence, (2) the
    evidence was favorable to the defense,
    and (3) the evidence was material to an
    issue at trial. United States v. Walton,
    
    217 F.3d 443
    , 450 (7th Cir. 2000); United
    States v. Morris, 
    80 F.3d 1151
    , 1169 (7th
    Cir. 1996). The state does not contest
    the Bosses’ contention that the
    investigative report summarizing Janice
    Hill’s interview with the state
    investigator was favorable to the
    defense./9 Therefore, we focus our
    attention on suppression and materiality,
    the other two elements of a Brady claim.
    1.    Suppression.
    Evidence is suppressed for Brady
    purposes only if (1) the prosecution
    failed to disclose evidence that it or
    law enforcement was aware of before it
    was too late for the defendant to make
    use of the evidence, and (2) the evidence
    was not otherwise available to the
    defendant through the exercise of
    reasonable diligence. United States v.
    Earnest, 
    129 F.3d 906
    , 910 (7th Cir.
    1997); 
    Morris, 80 F.3d at 1169-70
    ; United
    States v. Zambrana, 
    841 F.2d 1320
    , 1340
    (7th Cir. 1988). The state here contests
    whether the information Janice Hill
    related to the state investigator was
    available to the Bosses through the
    exercise of reasonable diligence.
    Specifically, the state argues that
    Janice Hill was a defense witness and,
    therefore, the Bosses had ample access to
    any information she possessed. Both the
    district court and the Illinois Appellate
    Court accepted this argument and found
    that the prosecution had not suppressed
    the evidence in the investigative report.
    We are of the view, however, that the
    state’s argument rests on far too
    expansive an understanding of what sort
    of evidence should be considered
    available to a defendant through the
    exercise of reasonable diligence. We
    regard as untenable a broad rule that any
    information possessed by a defense
    witness must be considered available to
    the defense for Brady purposes. To begin
    with, it is simply not true that a
    reasonably diligent defense counsel will
    always be able to extract all the
    favorable evidence a defense witness
    possesses. Sometimes, a defense witness
    may be uncooperative or reluctant. Or,
    the defense witness may have forgotten or
    inadvertently omitted some important
    piece of evidence previously related to
    the prosecution or law enforcement. Or,
    as may have been the case here, the
    defense witness learned of certain
    evidence in the time between when she
    spoke with defense counsel and the
    prosecution.
    Putting aside these situations in which
    it would be nearly impossible for defense
    counsel to discover evidence in the
    possession of defense witnesses,
    accepting the state’s position would
    place a burden on defense counsel that
    goes far beyond what reasonable diligence
    demands. Defense counsel can certainly be
    expected to ask witnesses (defense and
    otherwise) questions relevant to what
    counsel understands the witness’s role to
    be in the case. However, defense counsel
    cannot be expected to ask witnesses about
    matters completely unrelated to the
    witness’s role in the case. A contrary
    conclusion would require defense counsel
    to conduct a fishing expedition with
    every defense witness (and potential
    defense witness). Reasonable diligence
    does not require such a practice.
    We also find it significant that a
    defense witness’s knowledge is quite
    different from the type of evidence
    typically found to be available to
    defense counsel through the exercise of
    reasonable diligence. In the typical
    reasonable diligence case, the question
    is whether defense counsel had access to
    the document containing the Brady
    material, through an open file policy,
    for example. See, e.g., United States v.
    White, 
    970 F.2d 328
    , 337 (7th Cir. 1992).
    In cases like the present one, the
    question is whether defense counsel had
    access to Brady material contained in a
    witness’s head. See, e.g., Crivens v.
    Roth, 
    172 F.3d 991
    , 997 (7th Cir. 1999).
    Because mind-reading is beyond the
    abilities of even the most diligent
    attorney, such material simply cannot be
    considered available in the same way as a
    document. But, the position the state
    advances would require a defense
    witness’s knowledge to be treated exactly
    as information in a document the defense
    possesses. This stretches the concept of
    reasonable diligence too far.
    Still, the ultimate question we must
    answer in this case is whether the
    Illinois Appellate Court’s ruling--
    thatbecause Janice Hill was a defense
    witness, the information she possessed
    was available to the Bosses through the
    exercise of reasonable diligence--"was
    contrary to, or an unreasonable
    application of clearly established
    federal law, as determined by the Supreme
    Court." 28 U.S.C. sec. 2254(d)(1). Brady
    and its most notable progeny (United
    States v. Agurs, 
    427 U.S. 97
    (1976);
    United States v. Bagley, supra; Kyles v.
    
    Whitley, supra
    ), all of which were
    decided prior to the conclusion of the
    Bosses direct appeal, represent the
    relevant, clearly established federal
    law./10 And, the Appellate Court’s
    ruling is not so inconsistent with these
    cases that it can be characterized as
    "contrary to" them. Thus, we focus on
    whether the Appellate Court’s decision is
    an "unreasonable application of" Brady
    and its progeny. We conclude that it was.
    When faced with the task of determining
    whether a particular application of
    Supreme Court precedent is unreasonable,
    we have often taken a more pragmatic
    approach to answering the question,
    scrutinizing the practical operation and
    effect of the principles at issue in the
    particular facts of the case. See, e.g.,
    Miller v. Anderson, 
    255 F.3d 455
    , 456-59
    (7th Cir. 2001); Redmond v. Kingston, 
    240 F.3d 590
    , 591-92 (7th Cir. 2001);
    Washington v. Smith, 
    219 F.3d 620
    , 627-35
    (7th Cir. 2000). We ask whether the
    decision is "at least minimally
    consistent with the facts and
    circumstances of the case" or "if it is
    one of several equally plausible
    outcomes," Hennon v. Cooper, 
    109 F.3d 330
    , 335 (7th Cir. 1997); Hall v.
    Washington, 
    106 F.3d 742
    , 749 (7th Cir.
    1997), granting a writ of habeas corpus
    if the determination is "at such tension
    with governing U.S. Supreme Court
    precedents, or so inadequately supported
    by the record, or so arbitrary" as to be
    unreasonable. 
    Hall, 106 F.3d at 749
    .
    For instance, in Redmond v. 
    Kingston, supra
    , this court considered whether a
    Wisconsin court of appeals’ decision to
    affirm a state trial court’s exclusion of
    evidence (that the alleged statutory rape
    victim in the case had lied about a prior
    report of forcible rape) was an
    unreasonable application of Supreme Court
    Confrontation Clause precedent. The
    defendant was on trial for allegedly
    trading cocaine for sex with the minor,
    who was institutionalized at the drug
    rehabilitation center where the defendant
    was a counselor. Her testimony was the
    only evidence of the defendant’s guilt.
    The Wisconsin court upheld the exclusion
    of the prior false forcible rape report
    against the constitutional challenge,
    stating that it was cumulative of other
    credibility evidence and was confusing
    (the prior incident involved consent,
    which was not an element in that case).
    Therefore, they concluded that its
    probative value was outweighed by its
    inflammatory and prejudicial nature,
    justifying exclusion under the state’s
    rape-shield law and the Constitution.
    We held that this decision was
    unreasonable. 
    Redmond, 240 F.3d at 591
    .
    The "other credibility" evidence was that
    the minor began using drugs at the age of
    twelve, had stolen and occasionally
    danced to get money for cocaine, had run
    away from the institution, skipped school
    and told lies in the past. We stated that
    "none of the other evidence either
    involved a false charge of being sexually
    assaulted or furnished a motive for such
    a charge." 
    Id. Thus, the
    nature of the
    credibility evidence excluded was
    entirely different from that admitted,
    and we rejected as unreasonable the
    Wisconsin court’s suggestion that the
    evidence was cumulative.
    In addition, we concluded that there was
    no danger of confusion to the trier of
    fact, and that the assumption upon which
    the Wisconsin court made its
    determination was faulty. The Wisconsin
    court believed that admitting the
    evidence of the prior false rape report
    would require (or permit) the victim to
    testify that she had consensual sex with
    the alleged rapist, and that would lead
    to confusion and misperception of issues
    in the case. 
    Id. at 592.
    We rejected this
    conclusion, because the only evidence
    relevant to the case was that the victim
    had made up a story of forcible rape
    within the preceding year. This evidence
    did not require any inquiry into whether
    there was sexual intercourse, and we saw
    no reason why anyone would reach a
    conclusion to the contrary. 
    Id. We held
    that the evidence was "highly probative,
    noncumulative, nonconfusing, [and]
    nonprejudicial . . . [and] vital to the
    central issue in the case," and should
    not have been excluded. The defendant had
    a constitutional right to have it
    admitted. 
    Id. As our
    analysis in Redmond illustrates,
    careful review of the evidence and
    reasons supporting the decision is
    required in determining the
    reasonableness of a state court’s
    decision. It is that type of examination
    in which we engage today.
    Here, the Illinois Appellate Court’s
    ruling that reasonable diligence required
    the Bosses’ counsel to ask Janice Hill
    about what McAfee had been saying around
    the neighborhood regarding the attack on
    Eugene Oliver is an unreasonable
    application of Brady and its progeny. The
    Bosses’ counsel could not have reasonably
    expected Janice Hill to have knowledge
    regarding this topic. Janice was simply
    an alibi witness whom defense counsel
    planned to have testify to Randy’s
    whereabouts on the night of the crime.
    Nothing about her role in the case
    suggested that she might also have
    knowledge regarding what the
    prosecution’s chief witness was saying
    around the neighborhood.
    Holding that reasonable diligence
    requires defense counsel to ask witnesses
    about matters of which counsel could not
    have reasonably expected a witness to
    have knowledge is inconsistent with the
    aim of Brady and its progeny. Brady and
    its progeny strike a careful balance
    between maintaining an adversarial system
    of justice and enforcing the
    prosecution’s obligation to seek justice
    before victory. See, e.g., 
    Kyles, 514 U.S. at 439
    ("Unless, indeed, the
    adversary system of prosecution is to
    descend to a gladiatorial level
    unmitigated by any prosecutorial
    obligation for the sake of truth, the
    government simply cannot avoid
    responsibility for knowing when the
    suppression of evidence has come to
    portend such an effect on a trial’s
    outcome as to destroy confidence in its
    result."); 
    Bagley, 473 U.S. at 675
    n.6
    ("The Court has recognized, however, that
    the prosecutor’s role transcends that of
    an adversary: he is the representative
    not of an ordinary party to a
    controversy, but of a sovereignty whose
    interest in a criminal prosecution is not
    that it shall win a case, but that
    justice shall be done." (internal
    quotation marks and ellipses omitted));
    
    Brady, 373 U.S. at 87
    -88 ("A prosecution
    that withholds evidence on demand of an
    accused which, if made available, would
    tend to exculpate him or reduce the
    penalty helps shape a trial that bears
    heavily on the defendant. That casts the
    prosecutor in the role of an architect of
    a proceeding that does not comport with
    standards of justice . . . .").
    Allowing the government to withhold
    favorable material evidence that it
    receives from defense witnesses upsets
    the balance Brady and its progeny strike.
    The consequence of adopting the state’s
    position would work a real injustice. In
    effect, it would punish the defense for
    not obtaining evidence it had no reason
    to believe existed.
    The Illinois Appellate Court’s ruling
    regarding what reasonable diligence
    requires is also inconsistent with Brady
    and its progeny in a more particular
    sense. The Supreme Court has described
    the Brady rule as applying to information
    known to the prosecution but "unknown to
    the defense." 
    Kyles, 514 U.S. at 437
    ;
    
    Bagley, 473 U.S. at 678
    (opinion of
    Blackmun, J.); 
    Agurs, 427 U.S. at 103
    .
    This description suggests a focus on
    actual knowledge as the key consideration
    in determining whether evidence is
    available to the defense for Brady
    purposes. Still, it would be a reasonable
    application of this precedent to hold
    that the Brady rule does not apply to
    information the defense can be expected
    to discover. Refusing to characterize as
    Brady material information the defense
    can be expected to discover serves to
    weed out incredible claims of ignorance,
    to prevent sandbagging, and is consistent
    with a focus on actual knowledge. Further
    extension of the limits on Brady material
    to include information the defense could
    not be expected to discover cannot be
    reconciled with such a focus. See 5 Wayne
    R. LaFave et al., Criminal Procedure sec.
    24.3(b), at 486-87 (2d ed. 1999) (drawing
    a similar distinction). Extending
    thelimits on Brady material in this way
    would be inconsistent with what the
    Supreme Court has said regarding when
    undisclosed evidence is available to the
    defense.
    Finally, the state does not cite, and we
    have not found, a single case applying
    Brady and its progeny in the fashion
    advanced by the state. Of the few cases
    we have discovered involving whether the
    defense had access to information
    possessed by a witness, none demanded
    inquiry into matters defense counsel
    could not have been expected to ask
    about. See, e.g., 
    Crivens, 172 F.3d at 997
    ; United States v. Hamilton, 
    107 F.3d 499
    , 510 (7th Cir. 1997); cf. United
    States v. Senn, 
    129 F.3d 886
    , 892-93 (7th
    Cir. 1997); United States v. Rodriguez-
    Andrade, 
    62 F.3d 948
    , 952 (7th Cir.
    1995); United States v. Hedgeman, 
    564 F.2d 763
    , 769 (7th Cir. 1977). In fact,
    in Hamilton, this court, finding
    thatcertain information possessed by a
    witness was available to the defense for
    Brady purposes, made clear that it was
    more than reasonable to expect an
    investigator hired by the defense to
    inquire after the information at 
    issue. 107 F.3d at 508-09
    (quoting the district
    court’s finding that "’any investigator
    worth his or her salt would have asked
    Mr. Painter had he given any
    statements’"). This authority (and lack
    of authority) confirms our belief that it
    would be an unreasonable application of
    Brady and its progeny to rule that
    information possessed by a defense
    witness is available through the exercise
    of reasonable diligence where that
    information is not of a type defense
    counsel could reasonably expect that
    witness to possess.
    In sum, we find that the Illinois
    Appellate Court unreasonably applied
    Brady and its progeny in ruling that rea
    sonable diligence required the Bosses’
    counsel to ask Janice Hill about what
    McAfee had been saying around the
    neighborhood regarding the attack on
    Oliver. And we also conclude that the
    Bosses have satisfied the standard for
    habeas corpus relief with respect to the
    suppression requirement for a Brady
    claim./11
    2.   Materiality.
    Turning to the final prong, suppressed
    evidence is material for Brady purposes
    "’if there is a reasonable probability
    that, had the evidence been disclosed to
    the defense, the result of the proceeding
    would have been different.’" 
    Kyles, 514 U.S. at 433-34
    (quoting 
    Bagley, 473 U.S. at 682
    (opinion of Blackmun, J.)). Such a
    probability exists where the suppressed
    evidence, or evidence that is derived
    directly from the suppressed evidence,
    undermines confidence in the outcome
    reached. 
    Kyles, 514 U.S. at 434
    ; 
    Bagley, 473 U.S. at 682
    (opinion of Blackmun,
    J.); see also United States v. Dimas, 
    3 F.3d 1015
    , 1018 (7th Cir. 1993).
    The state argues that the evidence
    discovered on the basis of the
    information Janice Hill provided to the
    state investigator is not material
    because it is cumulative of the trial
    testimony of Antonio Shanklin and Tonya
    Gist exculpating one or both of the
    Bosses and inculpating McAfee./12
    According to the state, there is no
    reason to think the jury would not have
    disregarded this new evidence just as it
    disregarded the similar evidence it did
    hear. The Illinois Appellate Court
    embraced the state’s argument regarding
    this issue without reservation, but the
    district court declined to accept or
    reject the argument.
    In our view, the state’s argument
    mischaracterizes the nature of the
    evidence the Bosses discovered on the
    basis of Janice Hill’s statements to the
    state investigator. This evidence is not
    simply cumulative; it differs in at least
    two significant ways from the testimony
    of Antonio Shanklin and Tonya Gist.
    First, according to the uncontradicted
    representations of the Bosses’ counsel,
    two of the three witnesses discovered
    (Richard Mitchell and Marcus Fowler) are
    neutral and disinterested witnesses,
    which distinguishes them from Shanklin
    and Gist who, as the prosecution
    emphasized at trial, both have
    connections to the Bosses. We have
    previously recognized that independent
    corroboration of the defense’s theory of
    the case by a neutral and disinterested
    witness is not cumulative of testimony by
    interested witnesses, and can undermine
    confidence in a verdict. Washington v.
    Smith, 
    219 F.3d 620
    , 634 (7th Cir. 2000);
    Montgomery v. Petersen, 
    846 F.2d 407
    , 415
    (7th Cir. 1988).
    Second, the testimony that the newly
    discovered witnesses would have given
    (that McAfee admitted participating in
    the attack on Oliver and admitted that
    the Bosses were not involved) is of a
    different nature than that given by Gist
    and Shanklin. It involves a confession by
    McAfee, the state’s key witness, that he
    committed the crime the defendants were
    charged with and that he lied about the
    defendants’ participation in that crime.
    This is different and in many ways more
    significant evidence than testimony that
    two eyewitnesses believe they saw McAfee
    take part in the attack on Oliver. Cf.
    
    Redmond, 240 F.3d at 591
    -92 
    (discussed supra
    ).
    For both these reasons, the evidence the
    Bosses discovered on the basis of Janice
    Hill’s statements to the state
    investigator cannot be characterized as
    simply cumulative. It is difficult to say
    with certainty that the jury would have
    disbelieved the testimony of the newly
    discovered witnesses just as it
    disbelieved Gist and Shanklin. Making
    such a statement becomes impossible when
    we take into account how closely balanced
    the evidence presented at trial was. The
    evidence presented by the state was not
    overwhelming. As we have noted, McAfee’s
    testimony was the state’s only evidence
    connecting the Bosses to the attack on
    Oliver. Therefore, weighing McAfee’s
    credibility was crucial to the jury’s
    determination. The evidence the Bosses
    discovered on the basis of Janice Hill’s
    statements presents a direct and
    substantial challenge to McAfee’s
    credibility and undermines our confidence
    in the jury’s verdict. Therefore, we
    conclude that the withheld evidence was
    material for Brady purposes.
    Although the Illinois Appellate Court’s
    decision reaching the opposite conclusion
    is not "contrary to" clearly established
    Supreme Court precedent on Brady
    materiality, the Appellate Court’s
    decision is an "unreasonable application
    of" that precedent. The Appellate Court
    did not undertake a careful, balanced
    evaluation of the nature and strength of
    both the evidence the defense was
    prevented from presenting and the
    evidence each side presented at trial,
    which is required under Kyles v. 
    Whitley, supra
    . In Kyles, the Supreme Court
    exhaustively examined the suppressed evi
    dence as well as the evidence introduced
    at trial. It then carefully assessed what
    purposes the suppressed evidence might
    have served and how that evidence might
    have affected the jury’s consideration of
    the evidence that was 
    introduced. 514 U.S. at 441-54
    .
    By contrast, the Illinois Appellate
    Court’s discussion of whether the Bosses
    could satisfy the materiality requirement
    is little more than a conclusion that the
    excluded evidence, because it was
    cumulative, was not likely to be
    believed. The court did not consider the
    impeachment value the new evidence might
    have had or the differences between the
    new evidence and the testimony of
    Shanklin and Gist. Nor did the court
    assess the relative strength of the
    state’s case against the Bosses or how
    the new evidence might call the state’s
    case into question. As we noted above,
    all of these considerations have
    considerable significance in this case.
    But we do not conclude that the Illinois
    Appellate Court’s decision was
    unreasonable because not well-reasoned.
    Accord 
    Hennon, 109 F.3d at 334-35
    .
    Rather, we believe that the Illinois
    Appellate Court’s conclusion, that the
    evidence discovered on the basis of
    Janice Hill’s statements was not material
    because cumulative, was unreasonable on
    the facts and circumstances of this case.
    Therefore, we find that the Bosses have
    satisfied the standard for habeas corpus
    relief with respect to the materiality
    requirement for a Brady claim.
    III.   CONCLUSION
    As the Bosses have satisfied the
    standard for habeas corpus relief with
    respect to each of the requirements for a
    Brady claim, the district court erred in
    denying the Bosses writs of habeas
    corpus. Accordingly, we Reverse the
    judgment of the district court and Remand
    the case with instructions to grant the
    Bosses writs of habeas corpus unless the
    state retries them within 120 days.
    FOOTNOTES
    /* Since the filing of this appeal, both petitioners
    have been moved to new prisons; Randy Boss to
    Pickneyville Correctional Center and Revell Boss
    to Hill Correctional Center. We have substituted
    the wardens of those institutions, Guy Pierce and
    Mark A. Pierson, respectively, as the respondents
    in this case pursuant to Fed. R. App. P. 23(a).
    /1 Collectively, we refer to them as the Bosses. To
    avoid confusion, we will use first names when
    referring to them separately. We will also follow
    this practice for individuals in this opinion who
    share the same last name.
    /2 The state called four other witnesses: Chicago
    Police Detective Gene Harris; Oliver’s girl-
    friend, Beulah Williams; Assistant Cook County
    Medical Examiner Larry Simms; and paramedic Larry
    Del Dotto. But none of these witnesses offered
    testimony linking the Bosses to the attack on
    Oliver.
    /3 He later identified them in court.
    /4 The bicycle was introduced in evidence, and
    McAfee identified it as the bicycle used in the
    attack.
    /5 Detective Harris, in his testimony, insisted that
    McAfee was merely a witness, but police records
    and certain circumstances surrounding McAfee’s
    questioning by the police cast some doubt on that
    assertion.
    /6 Shanklin, like each of the defense witnesses,
    also admitted that he never contacted the police
    or the State’s Attorney’s Office about his knowl-
    edge regarding the crime. However, Shanklin, and
    both Hill sisters, testified that they did speak
    to the Bosses’ attorneys not long after the
    Bosses were charged.
    /7 Actually, defense counsel’s second amended motion
    for a new trial, supplementing two previous
    motions, incorporated this newly discovered
    material.
    /8 Under 28 U.S.C. sec. 2253(c), a habeas corpus
    petitioner challenging her conviction or sentence
    may appeal an adverse district court decision
    only with respect to those issues on which she
    has been granted a certificate of appealability. The
    Bosses ask us to expand their certificate of
    appealability to include various claims in addi-
    tion to their Brady claim, but on none of these
    claims have the Bosses made "a substantial show-
    ing of the denial of a constitutional right," as
    they must before a certificate of appealability
    can be issued, 28 U.S.C. sec. 2253(c)(2). There-
    fore we deny the Bosses’ request to expand their
    certificate of appealability.
    /9 Nor could it. As the district court recognized,
    the information in the investigative report has,
    at the very least, impeachment value, and im-
    peachment evidence is favorable to the defense,
    
    Bagley, 473 U.S. at 676
    ; Crivens v. Roth, 
    172 F.3d 991
    , 996 (7th Cir. 1999). In considering
    this element of the Bosses’ Brady claim, the
    Illinois Appellate Court appears to have proceed-
    ed on the assumption that suppressed evidence
    must be exculpatory to satisfy the requirements
    of Brady. Such an assumption is contrary to then
    clearly established Supreme Court precedent. See
    
    Bagley, 473 U.S. at 676
    ; Giglio v. United States,
    
    405 U.S. 150
    , 154-55 (1972).
    /10 We recognize that the Supreme Court has decided
    other cases involving Brady claims, see, e.g.,
    Strickler v. Greene, 
    527 U.S. 263
    (1999); Wood v.
    Bartholomew, 
    516 U.S. 1
    (1995); Pennsylvania v.
    Ritchie, 
    480 U.S. 39
    (1987); Weatherford v.
    Bursey, 
    429 U.S. 545
    (1977); Moore v. Illinois,
    
    408 U.S. 786
    (1972); Giglio v. United States, 
    405 U.S. 150
    (1972), but the three cited are the most
    significant decisions that identify the legal
    standards governing Brady claims. See 5 Wayne R.
    LaFave et al., Criminal Procedure sec. 24.3(b),
    at 473-90 (2d ed. 1999) (relying predominantly on
    these cases in describing the relevant stan-
    dards).
    /11 We need not address Revell Boss’s alternative
    argument that his attorney acted with reasonable
    diligence because Janice Hill was Randy’s alibi
    witness.
    /12 The state does not directly address the material-
    ity of Janice Hill’s statements themselves,
    presumably on the assumption that her statements
    would be inadmissible hearsay. We need not re-
    solve this evidentiary issue because the evidence
    discovered on the basis of Janice’s statements is
    material standing alone.
    Flaum, Chief Judge, dissenting. Like the
    majority, I share a sense of concern regarding
    the circumstances of this case. Given the facts
    before us, the preferable course of action would
    have been for the trial judge to grant the
    defense a continuance so that they could have
    further investigated any additional information
    which might have been provided by witness Janice
    Hill. Nevertheless, I am unable to conclude that
    the Bosses are entitled to a writ of habeas
    corpus under the standard mandated by 28 U.S.C.
    sec. 2254(d)(1) as interpreted in Williams v.
    Taylor, 
    529 U.S. 362
    , 402-13 (2000). In my judg-
    ment, the Illinois Appellate Court’s determina-
    tion, that no evidence from Hill was suppressed
    by the prosecution since she was a cooperative
    defense witness, cannot be labeled an unreason-
    able application of Brady in light of the con-
    trolling jurisprudence.
    I agree with the majority that the Illinois
    court’s decision was not "contrary to . . .
    clearly established Federal law, as determined by
    the Supreme Court of the United States," 28
    U.S.C. sec. 2254(d)(1). Thus, I address only
    whether the decision is an unreasonable applica-
    tion of such law. The Illinois Appellate Court’s
    decision fits into a line of circuit cases re-
    jecting Brady claims based on evidence that could
    have been discovered by the defense with reason-
    able diligence, see, e.g., Chandler v. Moore, 
    240 F.3d 907
    , 915 (11th Cir. 2001); United States v.
    Grintjes, 
    237 F.3d 876
    , 880 (7th Cir. 2001);
    Johns v. Bowersox, 
    203 F.3d 538
    , 545 (8th Cir.
    2000), or where the defense knew or should have
    known of the essential facts necessary to obtain
    the exculpatory evidence, see, e.g., Coleman v.
    Mitchell, 
    244 F.3d 533
    , 541 (6th Cir. 2001);
    United States v. Zichettello, 
    208 F.3d 72
    , 103
    (2d Cir. 2000). These cases present a reasonable
    interpretation of Brady since a Brady violation
    can occur only if evidence is suppressed, and,
    generally, evidence available to the defense
    cannot be so characterized.
    In deciding whether potentially exculpatory
    evidence could have been found through reasonable
    diligence, our court focuses on whether the
    defense had knowledge of the material containing
    such evidence and the same degree of access as
    the prosecution. See United States v. Parks, 
    100 F.3d 1300
    , 1307 (7th Cir. 1996); United States v.
    Morris, 
    80 F.3d 1151
    , 1170 (7th Cir. 1996). To
    defeat a Brady claim, the defense need not be
    aware of the specific details of the exculpatory
    information or precisely what it is so long as
    the defense knew of and had access to the materi-
    al that contained, or the witness who possessed,
    such information. See, e.g., United States v.
    Senn, 
    129 F.3d 886
    , 892-93 (7th Cir. 1997);
    
    Parks, 100 F.3d at 1037
    .
    Respectfully, I cannot find the Illinois Appel-
    late Court’s decision wanting under these stan-
    dards. Both of the Bosses clearly were aware of
    Janice Hill, as she testified in favor of one of
    the defendants, Randy. Since Randy and Revell
    were tried jointly, Revell must have also known
    of Hill. Additionally, the Bosses had at least as
    much access to Hill as the state did considering
    that she was one of their witnesses. The defense
    was aware that Hill had evidence relevant to the
    crime and had ample opportunity to interview Hill
    in order to obtain all of the information she
    knew about Eugene Oliver’s death, including
    Robert McAfee’s involvement. The Bosses have not
    demonstrated or suggested that Hill was uncooper-
    ative or that they otherwise would have had more
    difficulty in obtaining information from Hill
    than the prosecution did.
    The majority seeks to cabin the need for the
    defense to be reasonably diligent through a
    variety of distinctions that are, in my view,
    unavailing. The reasonable diligence requirement
    has frequently been applied to evidence that was
    unwritten. See, e.g., United States v. Zagari,
    
    111 F.3d 307
    , 320 (2d Cir. 1997); Hoke v. Nether-
    land, 
    92 F.3d 1350
    , 1355-56 (4th Cir. 1996).
    Indeed, obtaining information through questioning
    often requires less diligence than sorting
    through papers. Thus, the fact the proposed
    evidence in question was contained in Hill’s mind
    rather than a document is not a reason for
    excusing the defense’s not uncovering information
    known by one of their own witnesses.
    In addition, a specific lead is not necessary
    for a reasonably diligent defendant to discover
    exculpatory information; knowledge of and access
    to a witness usually are sufficient. See, e.g.,
    Wright v. Hopper, 
    169 F.3d 695
    , 702 (11th Cir.
    1999); 
    Hoke, 92 F.3d at 1355-56
    ; United States v.
    Hicks, 
    848 F.2d 1
    , 4 (1st Cir. 1988); United
    States v. Grossman, 
    843 F.2d 78
    , 85 (2d Cir.
    1988). The majority’s quotation from our decision
    in United States v. Hamilton, 
    107 F.3d 499
    , 508-
    09 (7th Cir. 1997) demonstrates this proposition.
    Hamilton does not rest on the defense’s posses-
    sion of information indicating what specific
    questions a witness should have been asked.
    Rather, by the simple fact that the bank teller
    in Hamilton was a witness the defense should have
    known to ask whether he had given any prior
    statements to the police. 
    Id. Similarly, in
    the
    days before trial the Bosses’ attorneys readily
    could have asked Hill if she had learned any
    additional information relevant to the case since
    their previous interview.
    The Illinois Appellate Court’s decision does not
    disrupt the prosecutor’s duty to seek justice
    before victory. Brady was never meant to displace
    our adversary system of justice, United States v.
    Bagley, 
    473 U.S. 667
    , 675 (1985), and does not
    require the prosecution to assist in presenting
    the defense’s case, United States v. White, 
    970 F.2d 328
    , 337 (7th Cir. 1992). Even after Brady,
    defendants are still required to conduct thorough
    investigations of witnesses which they know may
    have useful information.
    Furthermore, and perhaps most significantly,
    cases denying Brady claims often have relied on
    the fact that the witness with the exculpatory
    material was either a defense witness or cooper-
    ated with the defense. See Stockton v. Murray, 
    41 F.3d 920
    , 925 (4th Cir. 1994); United States v.
    Dean, 
    722 F.2d 92
    , 95 (5th Cir. 1983); United
    States v. Natale, 
    526 F.2d 1160
    , 1171 (2d Cir.
    1975). Against the backdrop of this case law, it
    is difficult to conclude that the Illinois Appel-
    late Court unreasonably applied the Supreme
    Court’s directives regarding Brady.
    The foregoing is not meant to suggest in any
    way a broad, strict rule that Brady is in all
    circumstances inapplicable to information ob-
    tained by the prosecution from defense witnesses.
    As the majority appropriately recognizes, a
    defense witness may forget information, may be
    reluctant to provide certain information to the
    defendant, or may become hostile to the defense,
    cf. In re Sealed Case No. 99-3096 (Brady Obliga-
    tions), 
    185 F.3d 887
    , 893 (D.C. Cir. 1999).
    Perhaps the refusal to recognize the possibility
    of a Brady violation in such circumstances would
    be an unreasonable refusal to extend a legal
    principle. Cf. 
    Williams, 529 U.S. at 408-09
    .
    However, we are not presented with such circum-
    stances. The Bosses have made no claim that Hill
    was unwilling or unable to provide the informa-
    tion she possessed. Hence, based on the record
    before us, I am simply unable to find sufficient
    support for the grant of the writ of habeas
    corpus and must therefore respectfully dissent.