OPINION
In 1988, Zachary Wilson was convicted of the 1981 murder of Jamie Lamb, who was shot in a bar in the City of Philadelphia. Wilson was sentenced to death. During his post-conviction relief proceedings, he learned that the Commonwealth had withheld certain information from his counsel during trial that could have been used for impeachment purposes. He asserts that the Commonwealth thereby violated his right to due process as set forth in Brady v. Maryland,
I. Factual Background and Procedural History
The factual background is taken from the opinions of the Pennsylvania Supreme Court and the District Court. See Commonwealth v. Wilson,
On August 3, 1981, a man entered a bar in the City of Philadelphia and “pulled a gun from under his coat as he walked past several patrons sitting at the bar. He aimed the gun at the victim, Lamb, who was sitting at the rear of the bar. After shooting the victim four times, [the man] fled the scene. The victim subsequently died from injuries caused by multiple gunshot wounds.” Wilson I,
According to the Pennsylvania Supreme Court:
A Commonwealth witness, Jeffrey Rahming, was in the rear of the bar, standing just behind the victim when the shooting started. Rahming saw Appellant enter the bar, aim the gun at the victim, and shoot the gun.
A second Commonwealth witness, Edward Jackson, was sitting at the front of the bar when Appellant entered. He, as well as many other patrons, dove to the floor as the gunfire began. When Appellant rushed to leave the bar, he tripped over Jackson and fell to the floor. Jackson and Appellant came face to face before Appellant scrambled to his feet and ran out of the bar.
Id.
Both Jackson and Rahming described the gunman to police and attended a police lineup in March 1982. At the lineup, Rahming identified Wilson as the gunman but Jackson did not. Wilson was charged with Lamb’s murder, but the charges were dismissed when Rahming failed to identify Wilson at the initial preliminary hearing.
On January 5, 1988, Wilson’s trial began in the Philadelphia Court of Common Pleas before Judge Alfred F. Sabo. The Commonwealth’s case was based almost entirely on the testimony of Jackson, Rahming, and Gainer. The jury returned its verdict on January 7, 1988, finding Wilson guilty of first degree murder and possession of an instrument of crime. The court held a penalty hearing on January 11, 1988. The jury found two aggravating circumstances — a significant history of violent felony convictions and the knowing creation of a grave risk of death to others — and no mitigating circumstances, and returned a sentence of death. On January 25, 1988, Judge Sabo sentenced Wilson to death and a term of imprisonment of 2.5 to 5 years.
The Pennsylvania Supreme Court affirmed Wilson’s conviction and sentence, and the United States Supreme Court denied certiorari. See Wilson v. Pennsylvania,
On May 6, 1998, the PCRA court denied Wilson’s PCRA petition, issuing a written opinion on September 23, 1999, in which it did not address Wilson’s Brady claim at all. The Pennsylvania Supreme Court affirmed the denial of PCRA relief on November 19, 2004, holding that Wilson had waived his Brady claim by failing to include it in his original PCRA petition or to seek leave to amend his petition to include such a claim. Accordingly, the Pennsylvania Supreme Court declined to address this claim on merits.
On June 6, 2005, Wilson filed the underlying petition for a writ of habeas corpus pursuant to 28 U.S.C. § 2254. The petition contained thirteen claims for relief, only one of which is at issue in the instant appeal. In Claim I, Wilson asserts that the prosecution violated his right to due process as set out in Brady by failing to turn over evidence to defense counsel that could have been used to impeach Jackson, Rahming, and Gainer and to undercut the
II. Jurisdiction
The District Court had jurisdiction over this case under 28 U.S.C. §§ 2241 and 2254. We have appellate jurisdiction under 28 U.S.C. §§ 1291 and 2258. The Commonwealth is not required to obtain a certificate of appealability in order to appeal the District Court’s decision to grant Wilson’s petition for a writ of habeas corpus. See Cristin v. Brennan,
III. Standard of Review
Because the facts underlying the Brady issue are not in dispute, our review of the District Court’s decision on that issue is plenary.
An application for a writ of habeas corpus on behalf of a person in custody pursuant to the judgment of a State court shall not be granted with respect to any claim that was adjudicated on the merits in State court proceedings unless the adjudication of the claim—
(1) 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; or
(2) resulted in a decision that was based on an unreasonable determination of the*658 facts in light of the evidence presented in the State court proceeding.
28 U.S.C. § 2254(d)(1). Because the Pennsylvania Supreme Court held that Wilson’s Brady claim was waived, it did not reach the merits of the claim. Accordingly, there was no state-level adjudication on the merits to which the District Court had to defer. See id.; see also Bronshtein v. Horn,
IV. Discussion
A. Procedural default
A federal court may not review “a question of federal law decided by a state court if the decision of that court rests on a state law ground that is independent of the federal question and adequate to support the judgment.” Coleman v. Thompson,
The Commonwealth argues that Wilson’s Brady claim is procedurally defaulted, based on the Pennsylvania Supreme Court’s holding that Wilson waived it by failing to raise it in its current form in his initial PCRA petition, see Pa. R.Crim. P. 902(B), or to seek leave to amend his PCRA petition to include this claim. See Pa. R.Crim. P. 905(A) & (D). At the time Wilson filed his PCRA petition and, in fact, at the time it was denied, the Pennsylvania Supreme Court still employed the “relaxed waiver” doctrine to reach the merits of claims brought by capital defendants which might otherwise be barred by waiver. See Commonwealth v. McKenna,
B. Brady Claim
In Brady, the United States Supreme Court held that “the suppression by the prosecution of evidence favorable to an accused upon request violates due process where the evidence is material either to guilt or to punishment, irrespective of the good faith or bad faith of the prosecution.”
As the Supreme Court has emphasized, the impact of the suppressed evidence must be considered cumulatively, not individually. See id. at 436,
On the one side, showing that the prosecution knew of an item of favorable evidence unknown to the defense does not amount to a Brady violation, without more. But the prosecution, which alone can know what is undisclosed, must be assigned the consequent responsibility to gauge the likely net effect of all such evidence and make disclosure when the point of ‘reasonable probability’ is reached.
Id. at 437,
While the Brady decision itself concerned the failure of the prosecutor to disclose exculpatory evidence, it is clear that the rule announced in Brady applies with equal force to the prosecutor’s failure to disclose evidence which could have been used for impeachment purposes. See United States v. Bagley,
Wilson claims that the Commonwealth withheld three key pieces of information
On May 26, 1981, six weeks before the shooting, Jackson was arrested for impersonating a police officer. According to the man he assaulted, who was employed as a security guard by the Southeastern Pennsylvania Transportation Authority, Jackson took his gun, threw him up against a wall, and told him he was going to arrest him. Jackson was wearing a blue uniform and a badge and informed the victim that he was part of a special unit of the Philadelphia Police Department. Jackson was convicted on October 28, 1981, and a pre-sentence investigation and mental health evaluation were ordered. At the PCRA hearing, Wilson’s trial counsel, Joel Trigia-ni, testified that, had he seen Jackson’s rap sheet, he would have requested to see the pre-sentence investigation report and mental health evaluation and would have used the information contained therein to impeach Jackson.
The pre-sentence investigation report, dated December 16, 1981, reveals six out-of-state arrests, two involving impersonation of a police officer. Additionally, it states that Jackson had sustained a severe head injury in 1970 and that “within the past one and one half years, he has experienced pains in the back of his head, blackouts, and occasional loss of memory.” The mental health evaluation, dated October 28,1981, states:
He received two fractured skulls. The first time was in 1974 and the second time was in '79. He states that he has been having bad headaches and blackouts of late. Testing indicates that there may be some difficulty in the left hemisphere. He has some motor visual problems, cannot subtract sevens backwards. He has difficulty counting backwards from 20....
With respect to his mental status, the report notes that Jackson’s “long and short term memory were weak, but his social judgment was adequate. He could not think in abstract terms, and he has difficulty explaining himself and was easily confused.” According to the report, the psychological testing revealed:
patterns that have a neurological quality in that he was blocked and unable to form adequate perceptions, and showed some dissociative tendencies. He has a need to have control over his environment primarily because he has difficulty interacting within a normal manner. He has a severe status problem and has a need to be accepted.
The report further states:
He sees himself as being an aid to the Police and likes to associate and attach himself to Police activities. His poor judgment and distorted perceptions of reality and where he fits into it appropriately causes him to function beyond normal limits at times.
With respect to the Commonwealth’s second eyewitness, Rahming, Wilson alleges that the Commonwealth had in its possession at the time of trial, but withheld, information regarding Rahming’s history
At the PCRA hearing, Trigiani testified that, had he been aware of Rahming’s emergency room visit, he would have asked to see his rap sheet. His rap sheet indicates a court-ordered psychiatric evaluation dated February 25, 1980, and a pre-sentence investigation report dated March 31, 1980, and also reveals that Rahming was placed on “strict psychiatric probation” as a result of his April 9, 1980, sentence. The pre-sentence investigation report indicates a history of drug and alcohol abuse and notes that Rahming “appeared] to have a number of physical, social, and mental disorders.” The mental health evaluation, which was conducted approximately sixteen months before the shooting, reveals that Rahming suffered from seizures and was on seizure medication at that time, and that he had been hit in the head with a padlock a few years earlier. With respect to his mental status, the report states:
... At times, he is rather sleepy-eyed, and closes his eyes momentarily, and tells me that he feels sleepy because of his seizure medication ...
He is well oriented and his memory is intact. His fund of information is rather limited, and his usual approach to problems is concrete although he does understand some abstractness. He appears in the low average intelligence, but his social judgment is rather impulsive and chaotic with poor capacity to turn to authority in an effective way. He does not express any clear-cut dys-social values however.
... He also tells me that he tends to lose his memory and does not always recall what he says or does if he becomes enraged, and he is expressing a pattern of epileptoid and disassociative acting out of his anger with a diminished sense of consciousness and responsibility and poor controls. He had little insight concerning this and he is not seen as a good candidate for psychotherapy because his thinking is rather concrete and limited.
The diagnosis section reads:
There is no evidence of any psychosis or major mental illness with this individual. He may be best described as a Mixed Personality Disorder with passive-aggressive and explosive traits who also suffers from a seizure disorder. Psychological test material indicates some primitive and morbid aspects with inadequate coping mechanisms and much unresolved tension and emotionality with in this individual.
Periodic progress reports filed during his term of probation indicate that he was taking Haldol throughout 1980 and 1981. Trigiani testified that it would have been significant to know that Rahming was taking Haldol during the relevant time period because “Haldol is a psychotropic drug which is used to control psychoses or schizophrenia and it’s a mood equalizer.”
Finally, Officer Fleming’s testimony at the PCRA hearing revealed that he had loaned money, interest-free, to Gainer during the time period when Gainer acted as a police informant. This is in contrast to his trial testimony, in which Officer Fleming testified that he and Gainer had been friends for thirteen years and that Officer Fleming had “used him on many occasions for information” but that he had not “paid Lawrence Gainer on prior occasions for his information” and that he had “never given him anything.”
There can be no dispute that all of this information would have been favorable to Wilson and could have been used to impeach the Commonwealth’s three primary witnesses at trial and to undercut the Commonwealth’s case against Wilson. Our analysis therefore focuses on whether this information was suppressed by the Commonwealth and whether it was material to the jury’s verdict.
The Commonwealth vigorously disputes that the prosecution “suppressed” the information regarding Jackson’s prior conviction. Trigiani testified at the PCRA hearing that he filed pre-trial motions asking the Commonwealth to provide all exculpatory and impeachment information, including crimen falsi convictions for Commonwealth witnesses. The Commonwealth failed to disclose Jackson’s criminal background, and Wilson argues that it appears that, at the close of trial, the prosecutor affirmatively stated that Jackson had none:
The Court: ... You have the convictions for Jeffrey, Jeffrey Rahming?
Ms. Fisk: R-A-H-M-I-N-G.
Robbery in '80, theft in '83, and an open case on retail theft.
Mr. Trigiani: Right.
Ms. Fisk: Correct?
Mr. Trigiani: Gainer had—
Ms. Fisk: Theft from '79 in New Jersey.
The Court: Lawrence Gainer had—
Ms. Fisk: 1979 theft.
The Court: Theft in New Jersey.
Ms. Fisk: That was all, no other convictions in crimen falsi beyond that.
Based on these representations, Trigiani testified that he “didn’t believe that [Jackson] had any crimen falsi information.”
The Commonwealth misapprehends the state of the law as it relates to the prosecution’s disclosure requirements. The record reflects that Jackson’s 75-10 rap sheet was in the prosecutor’s file and his conviction was known to the police. We have clearly held that the prosecution bears the burden of disclosing to the defense a prosecution witness’s criminal record, whether or not an explicit request has been made by defense counsel. See United States v. Perdomo,
It is true that Brady does not oblige the government to provide defendants with evidence that they could obtain from other sources by exercising reasonable diligence. Evidence is not considered to be suppressed if the defendant either knew or should have known of the essential facts permitting him to take advantage of any exculpatory evidence. Notwithstanding this particular branch of the Brady doctrine, the facts of the instant case do not even remotely suggest that defense counsel had any knowledge or, more importantly, any responsibility to be aware of the witness’ criminal record. It is untenable to suggest that, in order to obtain impeachment evidence on behalf of a client, a public defender is, in any way, obligated to check the total list of persons who have been served by the agency to ascertain whether a prospective witness was a former client.... Moreover, the prosecution, not the defense, is equipped with the resources to accurately and comprehensively verify a witness’ criminal background.
Id. at 973 (citations omitted).
According to the Commonwealth, our decision in Perdomo was guided by an assessment of the imbalance of resources between the prosecution’s office and the public defender’s office, which is not present in this case. We disagree. As the District Court observes in its opinion, “[i]f the prosecution has the obligation, pursuant to Perdomo, to notify defense counsel
As for the information regarding the remaining two witnesses, the Commonwealth does not and, in fact, cannot, seriously dispute that the prosecution “suppressed” the information regarding Rahming being taken to the emergency room, following his testimony, and Officer Fleming’s extension of interest-free loans to Gainer. Whether it was a detective from the prosecutor’s office or a police detective who took Rahming to the hospital, it is clear that “the government’s duty to disclose under Brady reaches beyond evidence in the prosecutor’s actual possession.” United States v. Risha,
Additionally, the record clearly reflects sufficient information regarding the relationship between Officer Fleming and Gainer to have imposed an affirmative obligation on the Commonwealth to satisfy itself that no money had changed hands between the two. See Kyles,
Finally, the Commonwealth challenges as speculative the assertion that defense counsel would have uncovered Jackson’s 1981 pre-sentence investigation report and mental health evaluation and Rahming’s history of mental illness had the prosecutor disclosed Jackson’s prior conviction and Rahming’s post-testimony visit to the emergency room. We disagree with the Commonwealth’s characterization. The question under Brady is whether “disclosure of the suppressed evidence to competent counsel would have made a different result reasonably probable.” See Kyles,
The crux of the debate in this case is whether the suppressed evidence was “material.” See Brady,
We agree with Wilson that Jackson’s record of convictions is material because he would have been able to impeach Jackson’s testimony with evidence of his crimen falsi convictions, pro-prosecution bias, and mental impairments, all of which undermine his reliability. Jackson’s conviction for impersonating a police officer is a crimen falsi, see Commonwealth v. Gallagher,
With access to this information at trial, Wilson also could have argued that Jackson identified with and was biased in favor of law enforcement. Such an argument would have been supported by Jackson’s conviction for his impersonation of a police officer and his mental health evaluation, which revealed that he had an “ingrained” psychological need to impersonate a police officer, to “be[ ] an aid to the Police” and “to associate and attach himself to Police activities,” and that his mental problems caused him to “go overboard” trying to help the police, with “poor judgment and distorted perceptions of reality.” See
The mental health evaluation also indicates that Jackson had a history of “headaches and blackouts” apd an inability “to form adequate perceptions,” that he is “easily confused,” has “dissociative tendencies,” “blackouts,” “motor visual problems,” “weak” “long and short term memory,” “poor judgment,” and “distorted perceptions of reality.” As Wilson explains, “[w]hen PCRA counsel confronted Jackson with this information at the hearing, Jackson admitted he had serious head injuries (skull fractures) in 1974 and 1979; since then, he has had problems with his memory and is easily confused; he suffered from these problems at the time of the shooting and trial; and he had a drug and alcohol problem and was drinking at the time of the shooting.” This evidence could have been used to demonstrate Jackson’s impaired “ability to perceive, remember and narrate perceptions accurately,” which is clearly relevant to his credibility as a witness. See Cohen v. Albert Einstein Med. Ctr.,
Based on the circumstances of the shooting, the darkness in the bar, the brief time period in which the shooting occurred, and Rahming’s inability to describe the shooter’s clothing and failure to identify Wilson at the preliminary hearing, Wilson argues that the impeachment value of the evidence of Rahming’s visit to the emergency room and his history of severe mental illness also would have been strong impeachment evidence. While the Commonwealth questions whether this evidence would have been admissible, it clearly meets Pennsylvania’s standard for admissible impeachment evidence: that there be some connection between the proffered information and the witness’s ability “to observe the event at the time of its occurrence, to communicate his observations accurately and truthfully at trial, or to maintain a clear recollection in the meantime.” Cohen,
While it may be true, as the Commonwealth suggests, that some of the notations in Rahming’s hospital records would have bolstered his credibility as a witness, rather than damaging it, “the question is not whether the State would have had a case to go to the jury if it had disclosed the favorable evidence, but whether we can be confident that the jury’s verdict would have been the same.” Kyles,
Finally, with respect to the information regarding Officer Fleming’s provi
During trial, when Joel Trigani, Wilson’s counsel, tried to elicit evidence that Gainer was a paid informant for Officer Fleming, his questioning was objected to by the Commonwealth as “irrelevant.” Judge Sabo then removed the jury from the courtroom and allowed counsel to question Fleming in camera. At that time, Fleming testified under oath that he had “never given [Gainer] anything.” We consider it significant both that Gainer agreed to come forward so many years after his initial conversation with Wilson and that the prosecution did not decide to reinstate the charges against Wilson until that time, despite the availability of two eyewitnesses whose testimony it has strenuously endorsed as reliable. In light of the apparent importance of Gainer’s testimony to the Commonwealth’s case against Wilson, we believe that any additional connection between Gainer and Officer Fleming would have been significant in terms of impeachment value, especially in light of Officer Fleming’s emphatic testimony that he had “never given [Gainer] anything.”
Overall, as the Pennsylvania Supreme Court observed and as a review of the trial transcript bears out, Wilson’s conviction was based almost entirely on the testimony of these three witnesses. See Wilson I,
Y. Conclusion
For the reasons stated above, we will affirm the judgment of the District Court.
Notes
. The District Court entered partial summary judgment in favor of Wilson pursuant to Federal Rule of Civil Procedure 56. We have previously recognized the propriety of the entry of summary judgment in the habeas context, see Carter v. Rafferty,
. In Bronshtein, we noted that our opinion in Fahy v. Horn,
