Affirmed by published opinion. Chief Judge WILKINSON wrote the opinion, in which Judge HAMILTON and Judge WILLIAMS joined.
OPINION
Michael Wayne Williams was sentenced to death for the murders of Morris Keller, Jr., and his wife, Mary Keller. At trial, Williams admitted to robbing the Kellers, being an accomplice to the rape of Mrs. Keller, and shooting Mr. Keller. He now appeals the district court’s denial of his petition for a writ of habeas corpus. We affirm the judgment of the district court.
I.
Between 9:30 and 10:30 on the night of Saturday, February 27, 1993, Williams and Jeffrey Alan Cruse caught a ride with Verena Lozano James to a rural area in Cumberland County. Williams and Cruse intended to rob the nearby Bear Creek Market with a .357 caliber Ruger Black Hawk revolver that Williams had given to Cruse.
After finding the market closed, Williams informed Cruse that “he knew a house where we can go; they’d have a couple thousand dollars.” The two men then proceeded to the home of Mr. and Mrs. Keller. Mr. Keller opened the door, Williams pointed the .357 at him, and both Williams and Cruse walked inside the house.
Williams and Cruse then escorted Mr. Keller to the Kellers’ kitchen, where the three men encountered Mrs. Keller. Williams demanded that the Kellers remove their clothing. Cruse then began to search the house for money and other valuables while Williams remained with the Kellers. Cruse located a fully-loaded .38 caliber handgun during his search. *424 When Cruse returned to the kitchen, Williams suggested they tie the Kellers up, and Cruse did so with some phone cord. Williams and Crusé then placed the Kel-lers in a living room closet and continued their search of the house.
Some time later Cruse moved Mrs. Keller, still naked, to another closet — this one in a back bedroom of the house. Both Williams and Cruse then raped Mrs. Keller. During the rape Mrs. Keller pleaded, “Just don’t hurt us.” After they had finished, Williams and Cruse retrieved Mr. Keller, and Williams instructed both Kel-lers to take showers and put on clean clothing. Williams then told the Kellers they were going to “take a walk.” On the way out of the house Williams informed Mrs. Keller that he planned to burn the house. Upon Mrs. Keller’s request, Williams accompanied her back inside to get the Kellers’ marriage license.
With Williams carrying the .38 and Cruse the .357, the two men walked the Kellers down a dirt road and into a thicket. Williams then took up a position directly behind Mr. Keller and Cruse stood behind Mrs. Keller. Williams said, “We’ll shoot at the count of three.” At the count of three, Williams shot Mr. Keller, who fell to the ground. Cruse did not fire. Williams turned to Cruse and told him to shoot. After Cruse shot and Mrs. Keller fell, Mr. Keller stood up again. Williams then shot him a second time. As Cruse began to walk away, Williams said, “Wait.... What if they ain’t dead?” Williams then approached the Kellers and shot each a few more times.
Williams and Cruse next returned to the house, where they loaded the Kellers’ Jeep Cherokee with their television set, microwave oven, stereo and speakers, and shotgun. After loading the Cherokee, the two men set fire to the house.
The next day Williams and Cruse sold some of the property they had taken from the Kellers. They then threw the remaining property and the .357 into the Rappa-hannock River and set fire to the Cherokee.
When James heard about the fire at the Kellers’ house, she contacted the police and informed them that she had deposited Williams and Cruse near the house on the night of the fire. The police interviewed Cruse, who was unresponsive until the police located the bodies of Mr. and Mrs. Keller.
After consulting counsel, Cruse agreed to a plea bargain pursuant to which he would disclose his knowledge of the crimes in exchange for a promise from the Commonwealth not to seek the death penalty. Cruse then gave a statement in which he explained the events of the fateful night in detail, with the exception of Cruse’s own participation in the rape of Mrs. Keller. Upon learning of Cruse’s falsehood, the Commonwealth revoked its plea agreement with Cruse and later indicted him for capital murder.
Williams was indicted for the capital murder, robbery, rape, and abduction of Mrs. Keller; for the capital murder, robbery, and abduction of Mr. Keller; for capital murder based on two related homicides; statutory burglary; and arson. At trial in January 1994, Williams took the stand in his own defense. He confirmed significant parts of the Commonwealth’s case. In particular, he indicated that he was the one who suggested robbing the Bear Creek Market, that it was his suggestion to set fire to the Kellers’ house, and that he shot Mr. Keller in the head. He contradicted portions of the evidence presented against him, most of which was in the form of testimony by Cruse. Specifically, he denied that he also raped Mrs. Keller, that he fired any shots other than the first one, and that he was the instigator at various other points during the commission of the crimes.
The jury convicted Williams of capital murder. It then recommended the death sentence on the basis of Williams’ future dangerousness and the vileness of his crimes. The trial court agreed with the
*425
jury’s recommendation and sentenced Williams to death. The Supreme Court of Virginia affirmed the conviction and sentence,
Williams v. Commonwealth,
Williams then filed a petition for state habeas and moved for discovery, an evi-dentiary hearing, and expert assistance. The Supreme Court of Virginia denied these motions and the petition, stating without explanation that Williams’ claims were meritless. The United States Supreme Court again denied certiorari.
Williams v. Netherland,
Next, Williams filed a petition for habe-as corpus in the United States District Court for the Eastern District of Virginia. The district court granted Williams an evi-dentiary hearing on three of his claims and dismissed the rest. Because Williams filed his petition after the effective date of the Antiterrorism and Effective Death Penalty Act of 1996 (AEDPA), Pub.L. No. 104-132, 110 Stat. 1214, this court entered a stay and instructed the district court to reconsider its grant of an evidentiary hearing in light of 28 U.S.C. § 2254(e) as amended by that Act. After applying the AEDPA, the district court denied Williams’ request for an evidentiary hearing and dismissed his petition in its entirety. Williams now appeals.
II.
Williams maintains he was entitled to an evidentiary hearing in the district court to establish several claims. Two of those claims arise under the Sixth Amendment. First, Wilhams claims that one of the jurors failed to answer honestly questions put to her on voir dire.
See United States v. Bynum,
With respect to his other claim, Wilhams maintains that the Commonwealth failed to provide him with exculpatory evidence as required under
Brady v. Maryland,
A.
The district court denied Williams an evidentiary hearing on these claims. Section '2254(e)(2) provides:
(2) If the applicant has failed to develop the factual basis of a claim in State court proceedings, the court shall not hold an evidentiary hearing on the claim unless the applicant shows that—
(A) the claim relies on—
(i) a new rule of constitutional law, made retroactive to cases on collateral review by the Supreme Court, that was previously unavailable; or
(ii) a factual predicate that could not have been previously discovered through the exercise of due diligence; and
(B) the facts underlying the claim would be sufficient to establish by clear and convincing evidence that but for constitutional error, no reasonable *426 factfinder would have found the applicant guilty of the underlying offense.
28 U.S.C. § 2254(e)(2). The district court held that whatever else Williams could show, he could not demonstrate actual innocence as required by section 2254(e)(2)(B).
Williams argues that the district court erred in applying section 2254(e)(2) to his request at all. He maintains that section 2254(e)(2) applies only when the petitioner “has
failed
to develop the factual basis of a claim in State court.”
Id.
(emphasis added);
see also Cardwell v. Greene,
We disagree. To escape the requirements of section 2254(e)(2), a petitioner must “diligently... develop the factual basis of’ his claim in state court.
Cardwell,
Williams clearly has not “diligently sought to develop the factual basis of’ his claims for federal habeas relief.
Cardwell,
The same is true of Cruse’s psychiatric evaluation. In support of his claim that the Commonwealth suppressed the evaluation, Williams provides nothing more than an affidavit from his state habeas counsel attesting to “no recollection of seeing this report in Mr. Cruse’s court file.” In light of the fact that Williams’ federal habeas counsel located the evaluation in this very file, state habeas counsel’s failure to see *427 the report is insufficient to demonstrate diligence. Indeed, that failure tends to show that counsel did not act diligently.
Thus, it is clear that section 2254(e)(2) applies to Williams’ request for a hearing. It is equally clear that Williams is ineligible for a hearing in federal court under this section. To be eligible, Williams must be able to demonstrate both due diligence and that “but for [the alleged] constitutional error, no reasonable factfinder would have found [him] guilty of the underlying offense.” 28 U.S.C. § 2254(e)(2)(A)(ii)-(B).
The discussion above makes plain that Williams was not duly diligent. Nor can Williams show that no reasonable factfin-der would have found him guilty of capital murder. At trial Williams himself testified that he robbed the Kellers at gunpoint, was at least an accomplice to the rape of Mrs. Keller, and was the first person to shoot Mr. Keller in the head. The Commonwealth’s Assistant Chief Medical Examiner, who performed the autopsy on Mr. Keller, testified that each gunshot wound suffered by Mr. Keller contributed to his death. Moreover, although Williams denied that he raped Mrs. Keller, tests on seminal fluid retrieved from her body revealed that some of the fluid could be attributed only to Williams.
Under Virginia law, this evidence was more than sufficient to convict him of capital murder.
See Strickler v. Commonwealth,
B.
Even were section 2254 not to apply, Williams would be unable to show his eligibility for a hearing under pre-AEDPA law.
See Cardwell,
To demonstrate cause, Williams must establish that “ ‘some objective factor external to the defense impeded counsel’s efforts.’ ”
McCleskey v. Zant,
Williams is also unable to demonstrate prejudice. In order to do so, he must show that, absent the alleged constitutional violation, the outcome of the case likely would have been different.
See Carrier,
For all of these reasons, the district court properly denied Williams’ request for an evidentiary hearing.
III.
Williams next challenges the district court’s dismissal of two claims on which the Supreme Court of Virginia found against Williams on the merits. We review decisions by state courts on the merits of a claim under section 2254(d). Section 2254(d) provides that:
(d) 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 facts in light of the evidence presented in the State court proceeding.
28 U.S.C. § 2254(d). Under normal circumstances, section 2254(d)(1) prohibits the issuance of the writ unless the state court decision conflicts squarely with Supreme Court precedent which is controlling as to law and fact, or if no such precedent exists, if “the state court’s resolution of a question of pure law rests upon an objectively unreasonable derivation of legal principles from the relevant supreme court precedents, or if its decision rests upon an objectively unreasonable application of established principles to new facts.”
Green v. French,
A.
Williams first claims that the prosecution suppressed an alleged informal plea agreement that the Commonwealth had with Cruse in violation of Brady. The Supreme Court of Virginia was correct, however, to reject Williams’ claim. In state court the Commonwealth supplied two affidavits—one from Woodson and one from Cruse’s trial counsel, Donald Blessing—stating unequivocally that Cruse had no agreement. Specifically, Woodson swore, “At the time Cruse testified against *429 Williams in January of 1994, he had no plea agreement. Cruse testified truthfully that there was no plea agreement and that he remained charged with capital murder and subject to the death penalty.” Similarly, Blessing stated, “Cruse testified truthfully at... trial that he had no plea agreement, that he remained charged with capital murder for the Cumberland offenses, and that he was subject to a possible death sentence.”
Moreover, before the district court, the Commonwealth introduced another affidavit from Blessing, in which he swore, “At the time Cruse testified against Williams in Cumberland County, he had no agreement
or
understanding, formal or informal, with the Commonwealth.” The district court thus properly credited the state court’s judgment, and there is no reason for federal courts to revisit the state court’s determination in a federal hearing in view of the unrefuted evidence.
See Eaton v. Angelone,
Finally, even if Williams could demonstrate that Cruse had an informal plea agreement, he could not show materiality.
See Kyles v. Whitley, 514
U.S. 419,
B.
Williams next argues that the prosecutor violated his Sixth Amendment right to be present at trial and to confront adverse witnesses.
See Illinois v. Allen,,
We need not decide whether allowing the prosecutor to proceed with this line of questioning was constitutional error because even if it were, the error was harmless.
See Sherman v. Smith,
Williams’ claim is similarly unavailing under pre-AEDPA law. Whether or not we would determine independently that Woodson’s question violated Williams’ Sixth Amendment rights, it is clear that such a holding would create a new rule.
See Teague v. Lane,
The district court correctly denied Williams’ requests for relief on these two claims.
IV.
A.
Williams next argues that the district court misinterpreted 21 U.S.C. § 848(q)(9). Section 848(q)(9) governs the granting of expert assistance to indigent prisoners in connection with their federal habeas proceedings, providing that
Upon a finding that investigative, expert, or other services are reasonably necessary for the representation of the defendant, whether in connection with issues relating to guilt or the sentence, the court may authorize the defendant’s attorneys to obtain such services on behalf of the defendant and, if so authorized, shall order the payment of fees and expenses therefor under paragraph (10). No ex parte proceeding, communication, or request may be considered pursuant to this section unless a proper showing is made concerning the need for confidentiality. Any such proceeding, communication, or request shall be transcribed and made a part of the record available for appellate review.
Id. (emphasis added).
Williams contends that the district court erred in interpreting this section to require Williams to show a need for confidentiality in an adversary hearing. When the district court made that determination, Williams refused to participate in an adversary hearing, and the district court denied his request for expert assistance.
We agree with the district court. In limiting
ex parte
requests for expert assistance, Congress was clearly addressing the routine approval of such requests even in those instances where expert or investigative services were unnecessary. Section 848(q)(9) explicitly provides that there shall be no “ex parte ... communication ... pursuant to this section” without a showing of a need for confidentiality.
Id.
Allowing an
ex parte
hearing to determine the need for an
ex parte
hearing not only seems convoluted, but it also runs afoul of the plain language of the statute.
See United States v. Gonzales,
The district court also rightly denied Williams’ request for expert assistance. When Williams refused to proceed after the district court required him to demonstrate his need for confidentiality in an adversary hearing, he necessarily failed to show that expert services were “reasonably necessary.” 21 U.S.C. § 848(q)(9). 2
B.
Finally, Williams argues that the district court erred by requiring him to file his federal habeas petition within 180 days of April 24, 1996—the AEDPA’s enactment date—pursuant to 28 U.S.C. § 2263. Williams contends that section 2263 applies only to “opt-in” states—those states that have met certain requirements pertaining to, inter alia, the appointment and compensation of counsel for post-conviction relief proceedings. Because this circuit has not yet recognized Virginia as an “opt-in” state, Williams contends that applying section 2263 was error. Instead, Williams maintains, the district court should have granted him one year from the effective date of the AEDPA to develop his petition further.
See Brown v. Angelone,
Any error here was harmless. Williams’ case remained in district court for a year and a half after he filed his petition. Yet Williams made not one motion to amend on the basis of claims developed during the petition’s pendency. Furthermore, although Williams requests a remand for an additional five months in which to amend his petition now, he provides no additional claims he might like to add. In all events, Williams cannot demonstrate that the district court’s error prejudiced him.
V.
For the foregoing reasons, the judgment of the district court is
AFFIRMED.
Notes
. Indeed, the Supreme Court has recently granted certiorari on this very question.
Por-tuondo v. Agard,
- U.S. -,
. We are unpersuaded by Williams' argument that our interpretation of section 848(q)(9) renders it unconstitutional. Williams’ sole contention is that any reading of section 848(q)(9) that requires a petitioner to divulge confidential information impermissibly impinges on his right of access to the courts.
See Gardner v. California,
