Affirmed by published opinion. Judge MOTZ wrote the opinion, in which Judge LUTTIG and Judge MICHAEL joined.
*242 OPINION
Thomas Lee Royal Jr. pled guilty to murdering Officer Kenneth Wallace, a Virginia policeman. The state court sentenced him to death. After exhausting his state remedies, Royal filed a petition for federal habeas relief, which the district court dismissed. We affirm.
I.
On February 21, 1994, after drinking and smoking marijuana, Royal, Yancy Mitchener, Willie Cardell Sanders, and El-dred Acklin gathered in the parking lot of a shopping center in Hampton, Virginia. According to his recorded confession, Royal distributed .25-caliber guns to Mitchener and Acklin, a .32-caliber gun to Sanders, and kept for himself a .380-caliber gun. The armed men then set out to find and kill Hampton Police Officer Curtis Cooper, against whom they had some grudge. Instead, the men encountered Officer Wallace in his police cruiser. Royal acknowledged that he realized Officer Wallace was not Cooper, but that he proceeded to shoot the officer anyway.
Royal confessed that “[Officer Wallace] pulled up and, you know, I leaned on the car, getting off the street, and he said, Are you drunk? And I turned around and said, No sir, I fired two shots.” After shooting Officer Wallace, Royal “just turned around and walked away.” Mitch-ener then approached Officer Wallace’s car and, according to Royal, began shooting into the cruiser while screaming and laughing. Acklin also fired shots at the police vehicle.
A local resident, who had heard the shots, found Officer Wallace shortly thereafter. When the neighbor arrived, the door to the cruiser was wide open and the driver’s window was shattered, leaving glass on the ground under the open door. Officer Wallace was seated in his cruiser, with several visible gunshot wounds to the head. He died four days later from the bullet wounds. An autopsy revealed that Officer Wallace had been hit twice in the head and that one of these shots was fatal. A forensic expert later found the fatal bullet to be consistent with a .380-caliber weapon. The Commonwealth, however, never recovered the murder weapon, or any fingerprints from the spent cartridges found at the scene.
In a videotaped conversation with investigating officers, Royal confessed to the murder of Officer Wallace. Although initially he told investigators that one of the other gunmen, Willie Sanders, used a .380-caliber weapon on the night of the murder, Royal immediately corrected his account and insisted that he alone canned a .380 that night. At the time, experts had not yet identified the caliber of the fatal bullet.
Royal pled guilty to capital murder and use of an illegal firearm. At sentencing, the court found that Royal posed a serious threat of future dangerousness and sentenced him to death. The Virginia Supreme Court affirmed Royal’s sentence,
see Royal v. Commonwealth,
After a federal court stayed his execution, Royal filed a federal habeas petition in April, 1997, which he amended in May, 1997. Royal sought discovery to assist the pursuit of his claims. The district court permitted Royal to obtain certain medical x-rays, but otherwise denied his request for discovery. Ultimately the district court dismissed Royal’s petition, finding all claims either procedurally defaulted or without merit.
See Royal v. Netherland,
*243
Royal raises five issues on appeal. First, he contends that he is actually innocent of capital murder. Second, Royal maintains that the Commonwealth did not reveal certain exculpatory evidence in a timely manner, in violation of
Brady v. Maryland,
We address each claim in turn. Because Royal filed his federal habeas petition after the effective date of the Antiterrorism and Effective Death Penalty Act of 1996, we review his claims under that Act.
See
28 U.S.C.A. § 2254 (West 1994 and Supp. 1999);
Lindh v. Murphy,
II.
Royal contends that he is factually innocent of capital murder because, under Virginia law, only the triggerman can be sentenced to death,
see Frye v. Commonwealth,
Initially, Royal maintains that his actual innocence in and of itself renders his conviction and execution violative of the Eighth and Fourteenth Amendments. Precedent prevents us from granting Royal’s habeas writ on this basis alone. Because federal habeas relief exists to correct constitutional defects, not factual errors, “[c]laims of actual innocence based on newly discovered evidence have never been held to state a ground for federal habeas relief absent an independent constitutional violation occurring in the underlying state criminal proceeding.”
Herrera v. Collins,
Although the
Herrera
Court assumed
arguendo
that the execution of a defendant who had made a persuasive claim of actual innocence would violate the Constitution and therefore warrant federal habeas relief
if
no state relief proceedings were available, it stopped short of holding that such a claim exists in every case.
Id.
at 417,
This, however, does not end our inquiry. In addition to claiming actual innocence as an independent basis for ha-beas relief, Royal also argues that it renders his execution a “fundamental miscarriage of justice,” thus permitting us to review certain defaulted claims on their merits.
See Schlup v. Delo,
In order to use an actual innocence claim as a procedural gateway to assert an otherwise defaulted claim, “the petitioner
*244
must show that it is more likely than not that no reasonable juror would have convicted him in the light of the new evidence.”
Schlup,
Royal contends that the following constitutes new evidence tending to show that he is actually innocent of the capital murder of Officer Wallace. Primarily Royal relies on the affidavits of two forensic experts who opine that Officer Wallace was shot through the window of his cruiser, while seated, by someone who was standing. These opinions are based on the downward trajectory of the fatal shot, the presence of small cuts or “dicing” marks on Officer Wallace’s face, the absence of gun powder burns around the wounds, and the fact that the cruiser’s window was found shattered. Royal also points to four .25-caliber shell casings recovered near the front of Officer Wallace’s cruiser and two .380-caliber shell casings recovered near the rear of the car. Finally, Royal cites evidence that one of the .380-caliber shell casings found around the scene did not come from the same gun as the other .380 shells, raising the possibility that more than one person fired a .380 weapon that night.
Royal contends that this new evidence reveals that he could not have been the triggerman in this murder. Specifically, Royal argues that he shot Officer Wallace not while the officer sat in the cruiser, but rather after Officer Wallace opened the car door and stood up. Also, the location of the shell casings is purportedly inconsistent with Royal’s confession, in which he claims to have shot at Officer Wallace near the driver’s seat rather than toward the rear of the vehicle. Finally, the possibility of more than one .380 gun assertedly indicates that Royal’s .380 was not the murder weapon.
This new evidence, however, is also entirely consistent with Royal’s guilty plea and confession. In the course of admitting his guilt, Royal repeatedly maintained that he alone carried a .380-caliber weapon. Moreover, as noted by the Virginia Supreme Court, the parties stipulated before the state trial court that “Royal encountered Officer Wallace and fired two shots from a .380 caliber handgun at Officer Wallace
while Officer Wallace was seated
in his police cruiser.”
Royal v. Commonwealth,
The only evidence in the record before us that supports Royal’s new assertion that he shot Officer Wallace after the officer rose from the seat and stood outside the cruiser is an affidavit by his trial attorneys. In the affidavit, defense counsel do recall that Royal told them that Officer Wallace got out of the car before Royal shot him; but this affidavit does not recant the stipulations or Royal’s state habeas assertion that Officer Wallace actually “was seated” in the car, nor does it even attempt to explain why those previous assertions should be ignored.
Furthermore, while the location where the shell casings were ultimately found may be inconsistent with a conclusion that Royal was the triggerman, investigators *245 did not remove the casings immediately after the shooting. The record provides uncontroverted evidence that, at a minimum, two of the other gunmen, a neighbor, and the police responding to the incident all moved about at the scene before the recovery of any evidence. Any one of them could have intentionally or inadvertently moved the casings, thus minimizing the importance of exactly where the police ultimately found the shells.
Finally, according to forensic experts, the two .380 bullets found in Officer Wallace’s head contained certain unique characteristics, indicating that the same gun likely fired both shots. Although the experts were unable to determine positively whether they came from the same gun, these similarities, coupled with Royal’s insistence concerning the caliber of firearm used by each of the gunmen, indicate that Royal alone fired the fatal shot in this case.
In sum, given the undisputed evidence that only Royal carried a .380-caliber weapon and that a .380-caliber bullet inflicted the fatal wound in Officer Wallace’s skull, we cannot conclude that “it is more likely than not that no reasonable juror would have convicted [Royal] in the light of the new evidence.”
Schlup,
III.
Turning to the constitutional claims, we first address Royal’s contention that the Commonwealth failed to reveal certain exculpatory evidence in a timely manner as required by
Brady v. Maryland,
Royal argues that government interference constitutes cause in this instance.
See McCleskey v. Zant,
Royal contends that the Commonwealth’s unexplained delays in revealing that some evidence had been planted and its refusal to turn over statements made by the other gunmen constitute sufficient cause to excuse the default of his Brady claim. Royal’s theory is that it was not *246 until he knew that the police officer planted evidence against both him (the .380 gun) and another of the gunmen (the .25 cartridge), that he realized the extent of the weaknesses in the Commonwealth’s case, and that it was too late for him to act at that point.
Even if Royal were able to show cause, through government interference or otherwise, he is unable to demonstrate actual prejudice resulting from the
Brady
violation.
Brady
holds 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.”
The prosecution in this case had ample evidence to convict Royal absent any reliance on the planted evidence or information gleaned from statements of the other gunmen. Again, Royal’s repeated insistence that he alone used a .380-caliber weapon to shoot Officer Wallace, coupled with the forensic reports indicating that both .380 bullets found in Officer Wallace’s head likely came from the same gun, and that one of them killed the officer, convince us that any other evidence the trooper may have planted or any statements that Royal suggests the police may have obtained from the other gunmen were simply not material to Royal’s conviction or sentence. Considering the totality of the circumstances, we are confident in the result of the case; we do not find a “reasonable likelihood” that admission of the allegedly exculpatory evidence would have altered the result here.
Id.
at 682-83,
Royal also asserts that investigators somehow used the planted evidence to coerce his confession. The district court correctly found this argument defaulted under
Gray v. Netherlands
IV.
Royal also makes several ineffective assistance of counsel claims. He contends that he would not have pled guilty if his trial counsel had properly investigated and pursued a triggerman defense or obtained adequate experts. Royal further argues that his counsel’s failure to investigate and present certain mitigating evidence at the sentencing hearing denied him effective assistance of counsel. Before the district court, the Commonwealth maintained that the Virginia Supreme Court had denied these claims on their merits, and urged the district court to uphold that denial. Two district judges — -one considering the habe-as petition and one considering a motion to alter or amend the judgment — agreed and denied the claims on their merits.
On appeal, the Commonwealth devotes most of its attention to reiterating its merits arguments; however, it also briefly asserts that these claims are procedurally barred. The Commonwealth contends that a federal habeas court cannot review these claims because the Virginia Supreme Court dismissed them based on
Anderson v. Warden,
However, “[t]he rule that a federal habeas court will not consider a claim that was rejected by a state court on an adequate and independent state-law basis ... is not a jurisdictional one.”
Yeatts v. Angelone,
Nonetheless, even if a state has waived its right to raise the issue, we have held that a federal court, in its discretion, may hold a claim procedurally defaulted.
See Yeatts,
With these considerations in mind, we decline to exercise our discretion to find these claims procedurally defaulted.
See Fisher,
Anderson
may simply prohibit collateral challenges to a guilty plea, including claims of ineffective assistance of counsel that attack the validity of the plea; such a rule would appear to constitute an adequate and independent state procedural rule like
Slayton,
and would therefore generally bar us from considering such claims on their merits.
See
Coleman;
In the case at hand, however, the Commonwealth conelusorily maintains that
Anderson
incorporates a broader procedural bar, preventing a petitioner who has pled guilty from asserting
any
collateral challenge based on ineffective assistance of trial counsel, even a claim pertaining to sentencing. The Virginia Supreme Court here applied
Anderson
in this more expansive manner, finding that it barred collateral consideration not just of Royal’s ineffective assistance claims in connection with the plea but also of the claim relating to his sentence. If the
Anderson
rule encompasses ineffective assistance of counsel claims that do not challenge the plea but rather only pertain to sentencing, it may well not constitute an adequate and independent state procedural default rule because in Virginia such claims — unlike challenges to the plea itself — cannot be raised until the state habeas proceeding.
Compare Walker v. Mitchell,
In sum, none of the factors that led us to dismiss the habeas claim in Yeatts on the basis of procedural default supports such a course here. Rather, all of those factors weigh in favor of resolving these patently meritless claims on the substantive grounds to which we now turn.
In order to prevail on a claim of ineffective assistance of counsel in connection with a guilty plea, a petitioner must prove that his counsel’s performance fell below the well-established standard outlined in
Strickland v. Washington,
Royal is unable to meet either prong of the
Strickland
standard. In making strategic decisions concerning what to investigate or how to proceed at trial, a lawyer may properly rely on the general truthfulness of his client as well as the defendant’s particular statements.
See
*249
Barnes v. Thompson,
Similarly, we have recognized that reliance on evidence of psychological impairments or personal history as mitigating factors in sentencing can be a “double-edged sword.”
Wright v. Angelone,
Furthermore, Royal has not demonstrated prejudice with respect to any of these claims. He has not shown that but for the assertedly ineffective assistance, a reasonable defendant would have insisted on proceeding to trial.
See Hill,
V.
Royal also argues that the district court erred in denying him discovery under Habeas Rule 6 concerning his
Brady
claims. In
Bracy v. Gramley,
VI.
Finally, Royal contends that the district court erred in failing to allow him a full year within which to file his federal habeas petition.
See
28 U.S.C.A. § 2244(d)(1);
Brown v. Angelone,
Assisted by counsel, Royal filed a federal habeas petition within the time period set by the district court. Moreover, after an initial amendment, which the district court allowed, Royal made no further at
*250
tempt to supplement his petition despite the passage of nearly another year before the district court denied the petition; nor does Royal now assert any new clqim that he would like to add to the petition. He has shown no “actual prejudice” stemming from the abbreviated deadline.
Brecht,
VII.
For the foregoing reasons, the district court’s denial of habeas relief is
AFFIRMED.
