WILSON, Circuit Judge:
Jerry Leon Haliburton was convicted of first degree murder and sentenced to death.
After the completion of his direct appeal and state habeas court proceedings, Haliburton filed, pursuant to 28 U.S.C. § 2254, a petition for habeas corpus relief in the district court challenging the first degree murder conviction and death sentence. The district court denied the petition, but granted a certificate of appeala-bility (COA) as to all issues. Haliburton contends that 1) the State withheld evidence in violation of
Brady v. Maryland,
373 U.S. 83, 83 S.Ct. 1194, 10 L.Ed.2d 215 (1963); 2) he did not receive a full and fair evidentiary hearing on his
Brady
claim regarding Freddie Haliburton’s March 15, 1982 statement; and 8) he received ineffective assistance of counsel at the penalty phase of his trial.
For the reasons set
forth below, we find that Haliburton is not entitled to relief from his conviction or his sentence, and, therefore, we affirm the district court’s denial of his petition.
BACKGROUND
In the early morning of August 9, 1981, Donald Bohannon’s home was burglarized, and he was attacked with a knife as he slept. “Bohannon died as a result of thirty-one stab wounds over his neck, chest, arms, and scrotum.”
Haliburton v. State,
561 So.2d 248, 249 (Fla.1990) (per curiam). His body was found in his bed later that afternoon by his estranged girlfriend, Teresa Kast. “The perpetrator had gained entry to [Bohannon’s] apartment by removing glass panes from a jalousie door. Fingerprint evidence led the police to” Ha-liburton.
Haliburton v. State,
476 So.2d 192, 193 (Fla.1985),
vacated,
475 U.S. 1078, 106 S.Ct. 1452, 89 L.Ed.2d 711 (1986).
On August 13, 1981, the police took Hali-burton to the station house, advised him of his rights, and questioned him for several hours. During the interrogation, Halibur-ton gave a recorded statement wherein he “admitted] breaking in and seeing the body,” but “did not admit to committing the murder.”
Id.
Nevertheless, he was arrested and charged with first degree murder and burglary. The grand jury, however, returned an indictment only for burglary.
Thereafter, on December 17, 1981, Haliburton’s counsel waived his right to a speedy trial to secure more time to prepare for the burglary trial.
On March 12th or 15th of 1982, Halibur-ton’s brother, Freddie, and Sharon Williams, Freddie’s girlfriend, recorded statements at the police station and at the State Attorney’s Office
indicating that on separate occasions Haliburton admitted to each of them that he committed the murder.
Armed with this additional evidence, the state attorney secured a grand jury indictment on the murder charge on March 24, 1982. Subsequently, in September of 1983, Haliburton was convicted of burglary and first degree murder and sentenced to death. Nelson E. Bailey represented Haliburton at trial.
On direct ap
peal, the Florida Supreme Court reversed his convictions and remanded the case for a new trial, because it found that Halibur-toris statement to the police without his attorney present, but after his attorney arrived at the police station and requested to see him, should have been suppressed.
The State sought certiorari review from the United States Supreme Court, and, on March 24, 1986, the Supreme Court vacated the judgment and remanded the case to the Florida Supreme Court for reconsideration in light of
Moran v. Burbine,
475 U.S. 412, 106 S.Ct. 1135, 89 L.Ed.2d 410 (1986).
See Florida v. Haliburton,
475 U.S. 1078, 106 S.Ct. 1452, 89 L.Ed.2d 711 (1986) (per curiam). In
Moran,
the Supreme Court declined to find a violation of the United States Constitution where the police failed to inform the defendant that his attorney was attempting to contact him before he waived his Fifth Amendment rights. 475 U.S. at 423-24, 106 S.Ct. 1135. The Supreme Court noted in
Moran,
however, that its decision did not “disable[] the States from adopting different requirements for the conduct of its employees and officials as a matter of state law.”
Id.
at 428, 106 S.Ct. 1135. Thus, on remand, the Florida Supreme Court maintained its position that the failure to suppress Halibur-toris statement violated the due process provision of the Florida Constitution, and, once again, reversed Haliburton’s convictions and remanded the case for a new trial.
See Haliburton v. State,
514 So.2d 1088, 1090 (Fla.1987) (per curiam).
Haliburton’s second trial began on January 25, 1988, and Bailey was appointed as defense counsel again. The jury convicted Haliburton of burglary and first degree murder and voted nine to three in favor of the death penalty.
See Haliburton,
561 So.2d at 249. After considering the evidence, the trial judge found four aggravating factors,
no statutory mitigating factors, and insufficient nonstatutory mitigating circumstances to outweigh the aggravating factors. Therefore, the court imposed the death sentence.
The Florida Supreme Court affirmed the conviction and sentence on direct appeal.
Id.
at 252. Thereafter, Haliburton’s execution was scheduled for March of 1992, but in February of 1992 he filed a motion to vacate his conviction and sentence pursuant to Florida Rule of Criminal Procedure 3.850 and a motion for a stay of execution.
See Haliburton v. Singletary,
691 So.2d 466, 468 (Fla.1997) (per curiam). A stay was granted on March 12, 1992 to allow the trial court to consider his post-conviction motion to vacate. Subsequently, the trial court denied some of the claims in his Rule 3.850 motion and scheduled an evidentiary hearing for the others. After conducting the hearing, the trial court denied the remaining claims,
and, thereafter, Haliburton appealed the denial of his Rule 3.850 motion
and filed a
petition for state habeas corpus relief.
On January 9, 1997, the Florida Supreme Court affirmed the trial court’s order denying his Rule 3.850 motion and denied his petition for state habeas corpus relief.
Subsequently, Haliburton filed the instant petition for a writ of habeas corpus in the Southern District of Florida. In its preliminary order,
the district court denied eighteen of the twenty claims raised in Haliburton’s petition and ordered an evidentiary hearing to decide whether (1) Freddie’s March 15,1982 statement constituted a basis for a
Brady
violation and for a finding that trial counsel’s performance was ineffective at the guilt phase; and (2) trial counsel’s decision not to present a mental health expert as mitigating evidence constituted ineffective assistance of counsel at the penalty phase.
Haliburton v. Sec’y for the Dep’t of Corr.,
160 F.Supp.2d 1382, 1384, 1387, 1390 (S.D.Fla.2001). On September 10, 2001, after conducting an evidentiary hearing, the district court denied Haliburton’s petition for ha-beas corpus relief in its entirety,
id.
at 1392, and granted a COA as to all issues,
see Haliburton v. Sec’y for the Dep’t of Corr.,
S.D. Fla.2001, 160 F.Supp.2d 1382.
This appeal followed.
STANDARD OF REVIEW
“When reviewing the district court’s denial of a habeas petition, we review questions of law and mixed questions of law and fact
de novo,
and findings of fact for clear error.”
Nyland v. Moore,
216 F.3d 1264, 1266 (11th Cir.2000) (per curiam). Moreover, as we are reviewing a final state habeas judgment, “our review is greatly circumscribed and is highly deferential to the state courts” pursuant to § 2254 of the Antiterrorism and Effective Death Penalty Act of 1996 (AEDPA).
Crawford v. Head,
311 F.3d 1288, 1295 (11th Cir.2002).
The standards applicable to our review under the AEDPA are well settled.
First, § 2254(e)(1) provides for a highly deferential standard of review for factual determinations made by a state court: [A] determination of a factual issue made by a State court shall be presumed to be correct. The applicant shall have the burden of rebutting the presumption of correctness by clear and convincing evidence.
Second, § 2254(d) allows federal habe-as relief for a claim adjudicated on the merits in state court only where that adjudication in state court (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.
Id.
(alteration in original) (citation omitted) (internal quotation marks omitted). Furthermore, we previously have stated that
[a] state court decision is “contrary to” clearly established federal law if either (1) the state court applied a rule that contradicts the governing law set forth by Supreme Court case law, or (2) when faced with materially indistinguishable facts, the state court arrived at a result different from that reached in a Supreme Court case.
Putman v. Head,
268 F.3d 1223, 1241 (11th Cir.2001),
cert. denied,
537 U.S. 870, 123 S.Ct. 278, 154 L.Ed.2d 119 (2002). Additionally, “[a] state court’s decision [is]
an
‘unreasonable application’ of federal law if it identifies the correct legal rule from Supreme Court case law, but applies that rule in an unreasonable manner to the facts of petitioner’s case.”
Breedlove v. Moore,
279 F.3d 952, 961 (11th Cir.2002),
cert. denied,
— U.S. -, 123 S.Ct. 1278, 154 L.Ed.2d 1047 (2003). Furthermore, a state court decision that “unreasonably extends, or declines to extend, a governing legal principle (as established by Supreme Court case law) to a new context” also constitutes an unreasonable application of federal law.
Id.
DISCUSSION
I.
Brady
Claims
Haliburton contends that he is entitled to relief from his conviction, because the state withheld exculpatory evidence in violation of
Brady.
In
Brady,
the Supreme Court placed an affirmative duty on the prosecution to reveal any “evidence [that] is material either to guilt or to punishment, irrespective of the good faith or bad faith of the prosecution.” 373 U.S. at 87, 83 S.Ct. 1194. This duty covers “[i]mpeachment evidence ... as well as exculpatory evidence.”
United States v. Bagley,
473 U.S. 667, 676, 105 S.Ct. 3375, 87 L.Ed.2d 481 (1985).
Brady
does not, however, require that the prosecution “deliver [its] entire file to defense counsel, but only [that it] disclose” material evidence.
Id.
at 675, 105 S.Ct. 3375 (footnote omitted). Evidence is material under
Brady
“if there is a reasonable probability that, had the evidence been disclosed to the defense, the result of the proceeding would have been different.”
Id.
at 682, 105 S.Ct. 3375.
A. Fingerprint Test Results
In early March of 1982 Williams filed a charge of sexual battery against Haliburton. She alleged that Haliburton held a knife to her throat and attempted to rape her, but, later that same year, she dropped the charge. At Haliburton’s second trial in 1988, however, Williams testified that Haliburton held a knife to her throat during the attack in 1982 and said, “You don’t think I’d do nothing to you, huh?” and “I do you just like I did that man, I kill you....” She also testified that during the same conversation, he told her that a “knife was the best thing next to a gun,” because it would be difficult to prove that he was responsible if he hurt someone with a knife.
As testing at the time of the charge did not reveal Haliburton’s fingerprints on the knife allegedly used in the attack, he contends that he could have used the fingerprint test results to impeach Williams’s testimony that he held a knife to her throat. He, however, contends he was not able to do so, because the State withheld the fingerprint test results in violation of
Brady.
The state court rejected Haliburton’s
Brady
claim as to this issue.
Haliburton,
691 So.2d at 470. The court found that the fingerprint test results were for a separate charge that was nolle prossed six years before Haliburton’s second trial.
Id.
Moreover, the State Attorney’s Office where the charge was filed had an open files policy.
Id.
Thus, the state court concluded that Haliburton could have requested the file on the attack under that policy and presumably discovered the fingerprint test results.
Id.
As the state court’s reasonable determination of the facts,
see
28 U.S.C. § 2254(d)(2), leads us to the conclusion that Haliburton could have discovered the fingerprint test results with due diligence, the state court’s determination that the State did not violate
Brady
was an objectively reasonable adjudication of federal law,
see id.
§ 2254(d)(1). Accordingly, Haliburton is not entitled to relief based upon this claim.
B. Freddie Haliburton’s Gain Time
In June of 1982 Freddie was convicted of burglary and sentenced to twelve years in state prison. During his sentence, he was transferred to the Palm Beach County Jail to testify in both of Haliburton’s trials and to be deposed regarding Haliburton’s case. While Freddie was in the county jail, however, he could not accrue gain time for his burglary conviction.
Thus, Virginia Gay Broome,
who was the prosecutor at the time, agreed to write a letter to the Department of Corrections (DOC) requesting that Freddie not be penalized by losing his gain time while he was in the county jail.
Haliburton,
691 So.2d at 470. Haliburton, however, characterizes Broome’s letter to the DOC as a deal to induce Freddie’s testimony and thus contends that the State failed to disclose the deal fully in violation of
Brady.
Both Freddie and Broome denied that there was a deal to induce Freddie’s testimony, but they both acknowledged that Broome wrote to the DOC about Freddie’s lost gain time.
Id.
For example, at Freddie’s deposition on January 15, 1988, Broome stated in the presence of Bailey that she told Freddie she “would write and try to keep [him] from losing gain time
while” he was in the county jail. Thus, Bailey knew that Broome wrote the letter to the DOC before Haliburton’s second trial began.
See United States v. Meros,
866 F.2d 1304, 1309 (11th Cir.1989) (per curiam) (declining to find a
Brady
violation where defense counsel knew that a witness might have been involved in plea negotiations before the witness took the stand). Furthermore, on cross-examination at the second trial, Freddie testified that the prosecutor agreed to contact the DOC on his behalf, but not in exchange for his testimony.
As the State notified the defense about the letter to the DOC and Freddie testified about the letter at trial, the state court found “no failure on the state’s part to disclose relevant evidence.”
Haliburton,
691 So.2d at 470. We conclude that the Florida Supreme Court’s decision that the State disclosed all relevant evidence concerning the deal involving Freddie’s gain time was a reasonable application of clearly established federal law,
see
28 U.S.C. § 2254(d)(1), and was based upon a reasonable determination of the facts,
see id.
§ 2254(d)(2).
II. Federal Evidentiary Hearing
Haliburton contends that although he received an evidentiary hearing on his
Brady
claim regarding Freddie’s March 15, 1982 statement, it was not a full and fair hearing because he was not permitted to call Bailey, his trial counsel, to testify.
Thus, he contends that he is entitled to a remand for further evidentiary proceedings on this issue. Despite Haliburton’s efforts to frame our review in terms of whether the federal evidentiary hearing was full and fair, there is no such recognized claim for relief, and we instead are treating his claim as one that the district court abused its discretion by conducting the hearing in the way that it did.
The district court ordered an evidentia-ry hearing to determine whether a transcript of Freddie’s March 15, 1982 statement existed, and, if so, whether the State committed a
Brady
violation by failing to disclose the transcript. Contrary to the State’s position before the state courts, however, it conceded at the federal hearing that Freddie made a statement at the State Attorney’s Office in the presence of Sergeant David Houser, Assistant State Attorney Paul 0. Moyle,
and a court reporter. The State also conceded that there was a transcript of the statement, which it turned over to the defense, that could not be located at present.
As a result, the court received testimony at the hearing from Houser, Moyle, Richard Barkin, and Freddie to determine the content of the statement. Houser and Moyle, who were both present for Freddie’s March 15, 1982 statement, testified that they recalled Freddie giving a formal statement that was transcribed and that
the statement identified Haliburton as Bo-hannon’s murderer.
Moyle also testified that after the grand jury returned an indictment, he turned the file over to Bar-kin, the prosecutor. Barkin testified that he generally recalled that Freddie’s March 15, 1982 statement indicated that Haliburton confessed that he committed the murder. Additionally, although Freddie testified that he made the statement, he invoked his Fifth Amendment right against self-incrimination when asked about the contents of his statement.
When Haliburton rested his ease, he reserved the right to call Bailey to testify as to the contents of Freddie’s March 15, 1982 statement
even though both parties agreed that he would not be able to recall the specifics of the statement. As Bailey could not recall the specifics of the statement, the court was uncertain as to what his testimony would add to the disposition of the
Brady
claim. Therefore, pursuant to 28 U.S.C. § 2246,
the court ordered Bailey to testify through interrogatories and affidavits. Specifically, the court allowed each party to submit fifteen interrogatories to Bailey regarding his knowledge of Freddie’s March 15, 1982 statement and ordered that Bailey answer the interrogatories under oath in an affidavit. Thereafter, the court permitted each party to submit five reply interrogatories and scheduled oral argument to determine whether Bailey’s live testimony would be needed after reviewing the answers to the interrogatories.
After both parties agreed to the procedure,
Haliburton submitted three questions, the State submitted eleven questions, and neither party submitted reply questions. As anticipated, Bailey’s answers to the interrogatories indicated that he did not recall the specifics of Freddie’s March 15, 1982 statement, but that he was aware of the statement before the first trial and had a general recollection that the contents of the statement were incul-patory, as were all of Freddie’s statements in the case.
Nevertheless, Haliburton maintained at oral argument that he needed to present Bailey’s live testimony to test the discrepancy in his answers to the interrogatories — that is, the fact that Bailey could not recall the specifics of Freddie’s March 15, 1982 statement, but he generally could recall that it was inculpatory. Based upon Bailey’s answers, which were provided under oath, and the testimony of the other witnesses, however, the court found a sufficient evidentiary basis to rule upon Hali-burton’s
Brady
claim without Bailey’s live testimony.
Haliburton,
160 F.Supp.2d at 1388.
As Bailey did not testify live, Haliburton contends that he did not receive a full and fair evidentiary hearing. The court, however, received Bailey’s testimony in the form of interrogatories pursuant to § 2246. Section 2246 provides, “On application for a writ of habeas corpus, evidence may be taken orally or by deposition, or, in the discretion of the judge, by affidavit. If affidavits are admitted any party shall have the right to propound written interrogatories to the affiants, or to file answering affidavits.” 28 U.S.C. § 2246. Additionally, Rule 7 of the Rules Governing Section 2254 Cases in the United States District Courts gives judges the discretion to expand the record to “include, without limitation, ... answers under oath, if so directed, to written interrogatories propounded by the judge. Affidavits may be submitted and considered as a part of the record.”
In light of the fact that Bailey could not recall the specifics of Freddie’s March 15, 1982 statement, we find that the district court was well within its discretion in taking his testimony through interrogatories and considering his answers to the interrogatories as a part of the record.
See
28 U.S.C. § 2246. Furthermore, the court provided Haliburton an ample opportunity to demonstrate why Bailey’s live testimony would be needed through reply interrogatories, which Haliburton did not make use of, and oral argument. Therefore, as the court received testimony from the witnesses who had knowledge of Freddie’s March 15, 1982 statement, we conclude that the district court did not abuse its discretion by conducting the evidentiary hearing in the way that it did or by relying upon Bailey’s interrogatories in lieu of hearing his live testimony. As a result, Haliburton is not entitled to relief on this claim.
III. Ineffective Assistance of Counsel at the Penalty Phase
Haliburton contends that he is entitled to relief from his sentence, because he received ineffective assistance of counsel at the penalty phase. The Florida Supreme Court, however, rejected that claim.
Haliburton,
691 So.2d at 471. Thus, we must determine whether the Florida Supreme Court’s legal conclusions were contrary to or an unreasonable application of clearly established federal law.
See
28 U.S.C. § 2254(d)(1).
It was well settled when the Florida Supreme Court adjudicated Haliburton’s ineffective assistance of counsel claim that
Strickland v. Washington,
466 U.S. 668, 104 S.Ct. 2052, 80 L.Ed.2d 674 (1984), is the controlling legal standard for ineffective assistance of counsel claims.
Williams v. Taylor,
529 U.S. 362, 406, 120 S.Ct. 1495, 146 L.Ed.2d 389 (2000). To prove that counsel rendered ineffective assistance under
Strickland,
a defendant must demonstrate that “counsel’s conduct so undermined the proper functioning of
the adversarial process that the trial cannot be relied on as having produced a just result.” 466 U.S. at 686, 104 S.Ct. 2052. Thus,
Strickland,
established a two-pronged standard to determine whether counsel rendered ineffective assistance.
Id.
at 687, 104 S.Ct. 2052.
First, the defendant must show that counsel’s performance was deficient. This requires showing that counsel made errors so serious that counsel was not functioning as the counsel guaranteed the defendant by the Sixth Amendment. Second, the defendant must show that the deficient performance prejudiced the defense. This requires showing that counsel’s errors were so serious as to deprive the defendant of a fair trial, a trial whose result is reliable. Unless a defendant makes both showings, it cannot be said that the conviction or death sentence resulted from a breakdown in the adversary process that renders the result unreliable.
Id.
When conducting an ineffectiveness review, the court’s role “is not to grade counsel’s performance.”
Chandler v. United States,
218 F.3d 1305, 1313 (11th Cir.2000) (en banc).
On the contrary, the court’s role in this context is to conduct an objective inquiry and determine whether “counsel’s performance is reasonable[ ] under prevailing professional norms.”
Id.
(internal quotation marks omitted). Therefore, “[¡Judicial scrutiny of counsel’s performance must be highly deferential.”
Id.
at 1314 (internal quotation marks omitted). “Courts must indulge [the] strong presumption that counsel’s performance was reasonable and that counsel made all significant decisions in the exercise of reasonable professional judgment.”
Id.
(alteration in original) (internal quotation marks omitted). This presumption is even stronger when the court is examining the performance of experienced counsel.
Id.
at 1316. To overcome this presumption in favor of competence, the petitioner bears the heavy- — but not insurmountable — burden of persuading the court “that no competent counsel would have taken the action that his counsel did take.”
Id.
at 1314-15.
We note, however, that “[n]o absolute rules dictate what is reasonable performance for lawyers,” because absolute rules would impede “the constitutionally protected independence of counsel and restrict the wide latitude counsel must have in making tactical decisions.”
Id.
at 1317 (internal quotation marks omitted). For example, “counsel need not always investigate before pursuing or not pursuing a line of defense,” because following a particular line of defense “is a matter of strategy and is not ineffective unless the petitioner can prove the chosen course, in itself, was unreasonable.”
Id.
at 1318;
see also Strickland,
466 U.S. at 690, 104 S.Ct. 2052 (“[Strategic choices made after thorough investigation of law and facts relevant to plausible options are virtually unchallengeable.”). Additionally, counsel is not “re
quired to present all mitigation evidence, even if the additional mitigation evidence would not have been incompatible with counsel’s strategy.”
Chandler,
218 F.3d at 1319. Counsel must be permitted to weed out some arguments to stress others and advocate effectively.
Id.
Haliburton contends that Bailey was ineffective, because he did not begin preparation for the penalty phase until after the guilty verdict, which resulted in his failure to present mitigating evidence about Hali-burton’s disadvantaged childhood, alcohol and substance abuse, sex abuse, and brain damage. He contends that Bailey should have introduced this mitigating evidence through the testimony of Susan La Fehr Hession, a mental health expert.
We reject Haliburton’s assertion that Bailey did not begin preparing for the penalty phase until after the guilty verdict in the second trial. As Bailey represented Haliburton in the first trial, he had most of the background and preparation work for the penalty phase completed before the second trial began.
Haliburton,
691 So.2d at 471. Yet, Bailey testified at the state court evidentiary hearing that during the guilt phase of the second trial, he simultaneously conducted additional follow-up preparation for the penalty phase. Indeed, at the second penalty phase, he presented six additional witnesses.
Thus, we find that the Florida Supreme Court’s conclusion that the record does not support Haliburton’s contention that Bailey failed to begin preparation for the penalty phase until after the guilty verdict was returned is not an unreasonable determination of the facts.
See
28 U.S.C. § 2254(d)(2).
Furthermore, Bailey was not deficient for declining to present evidence about Haliburton’s disadvantaged childhood, alcohol and substance abuse, sex abuse, and brain damage. As Bailey represented Haliburton in the first and second trials, he was aware of Haliburton’s abusive background through frequent contact with his family members, including phone calls, visits to the family members’ homes, and conferences at Bailey’s office.
See Haliburton,
691 So.2d at 471. Additionally, Bailey knew that La Fehr Hession would have testified that there was an indication of brain damage.
Id.
Yet, Bailey decided not to present evidence about Haliburton’s abusive background and the indication of brain damage, because such evidence can often hurt the defense as much or more than it can help.
See Crawford,
311 F.3d at 1321 (“[EJvidence of alcohol or drug abuse ... often has little mitigating value and can do as much or more harm than good in the eyes of the jury.”). Instead, Bailey’s strategy in the penalty phase was to paint a picture of a man worth saving by emphasizing Haliburton’s close family ties and the positive influence he had on members of his family and fellow inmates.
See Haliburton,
691 So.2d at 471.
As Bailey thoroughly investigated Hali-burton’s background and mental health, we conclude that he knew enough to make an informed, strategic decision not to present such mitigating evidence and that his strategic decision was reasonable.
See
Chandler,
218 F.3d at 1319 (providing that “counsel [is not] required to present all mitigation evidence, even if the additional mitigation evidence would not have been incompatible with counsel’s strategy”). Thus, we conclude that the Florida Supreme Court’s holding that Bailey’s performance at the penalty phase was not ineffective is a reasonable application of clearly established federal law.
See
28 U.S.C. § 2254(d)(1).
CONCLUSION
For the foregoing reasons, we conclude that Haliburton has not shown that he is entitled to relief from either his conviction or his death sentence. Thus, the district court properly denied his habeas petition.
AFFIRMED.