CARLEY, Presiding Justice.

A jury found Travion Reid guilty of malice murder, two counts of felony murder, aggravated assault, criminal attempt to commit armed robbery and possession of a firearm during the commission of a felony. The trial court entered judgments of conviction and sentenced Reid to life imprisonment for malice murder and to five years imprisonment for the weapons charge, consecutive to the life sentence. The felony murder verdicts were vacated by operation of law. See Malcolm v. State, 263 Ga. 369, 372 (4) ( 434 SE2d 479) (1993). The trial court merged the aggravated assault and attempted armed robbery verdicts into the malice murder conviction. Reid appeals after the denial of a motion for new trial.

1. Construed most strongly in support of the verdicts, the evidence shows that Reid killed Cheyenne Morgan by intentionally shooting him with a rifle during an attempted armed robbery. The evidence was sufficient for a rational trier of fact to find Reid guilty beyond a reasonable doubt of the crimes for which he was convicted. Jackson v. Virginia, 443 U. S. 307 ( 99 SC 2781, 61 LE2d 560) (1979).

2. Reid contends that the trial court erred in charging the jury that "[w]hen witnesses appear and testify, they are presumed to speak the truth unless impeached in some manner provided by law."

In Noggle v. State, 256 Ga. 383, 386 (4) ( 349 SE2d 175) (1986), we recommended that trial courts discontinue giving [such a] presumption-of-truthfulness charge, as it "can be misleading and is of little positive value. . . ." However, we also have repeatedly "held that the use of such a charge is not unconstitutional and does not constitute reversible error. (Cits.)" [Cit.]

Blackmon v. State, 272 Ga. 858, 860 (3) ( 536 SE2d 148) (2000).

Moreover, "jury instructions must be read and considered as a whole. [Cit.]" Whitaker v. State, 283 Ga. 521, 525 (4) ( 661 SE2d 557) (2008). Here, the trial court fully charged the jury on determining the credibility of witnesses, resolving conflicts in the evidence and the ways in which witnesses may be impeached. "When read in context, the [presumption of truthfulness] charge here was not misleading. . . ." Blackmon v. State, supra. Although it certainly would have been the better practice not to give such a charge, the trial court did not commit reversible error in giving it. See Best v. State, 261 Ga. 30, 31 (5) ( 401 SE2d 732) (1991); Davis v. State, 261 Ga. 18, 19 (8) ( 401 SE2d 724) (1991); Baxter v. Kemp, 260 Ga. 184, 186 (5) ( 391 SE2d 754) (1990); Mincey v. State, 257 Ga. 500, 506 (9) ( 360 SE2d 578) (1987).

3. Reid claims that his trial counsel was ineffective. In order to prevail on a claim of ineffective assistance of counsel under Strickland v. Washington, 466 U. S. 668 ( 104 SC 2052, 80 LE2d 674) (1984), Reid "`must prove both that his trial counsel's performance was deficient and that there is a reasonable probability that the trial result would have been different if not for the deficient performance. (Cit.)' [Cit.]" Hill v. State, 284 Ga. 521, 522 (2) ( 668 SE2d 673) (2008). "`On appeal, this Court accepts the trial court's findings of fact, unless they are clearly erroneous. However, the trial court's legal conclusions are reviewed de novo. (Cit.)' [Cit.]" King v. State, 282 Ga. 505, 506 (2) ( 651 SE2d 711) (2007).

(a) Reid first alleges that his attorney was ineffective in failing to call alibi witnesses. At the motion for new trial hearing, trial counsel testified that she was approached at the start of the trial by one possible alibi witness, who was Reid's co-defendant in an unrelated drug case. After speaking with the witness, counsel advised Reid that the witness should not be called to testify because she was not credible and her testimony would be detrimental to the defense. "[T]he determination of which witnesses to call . . . is a strategic and tactical decision within the exclusive province of the attorney after consultation with the client. [Cit.]" Fairclough v. State, 276 Ga. 602, 605 (4) ( 581 SE2d 3) (2003). Reid has failed to overcome the strong presumption that his lawyer's tactical decision "falls within the broad range of professional conduct ([cit.])." Myers v. State, 275 Ga. 709, 713 (4) ( 572 SE2d 606) (2002). As for Reid's further claim that there were two other potential alibi witnesses, counsel testified that Reid did not give her the names of any such witnesses or tell her anything about an alibi. "It is within the trial court's discretion to resolve conflicting testimony between trial counsel and a defendant at a hearing on motion for new trial. [Cits.]" Adkins v. State, 280 Ga. 761, 762 (2) (a) ( 632 SE2d 650) (2006). Given the attorney's testimony, the trial court was authorized to conclude that "trial counsel cannot be deemed ineffective for failing to locate alibi witnesse[s] whose existence was not brought to counsel's attention." Ruffin v. State, 283 Ga. 87, 91 (12) (d) ( 656 SE2d 140) (2008).

(b) Reid further contends that his lawyer was ineffective in failing to request a jury charge on voluntary manslaughter as a lesser included offense. At the motion for new trial hearing, the attorney testified that she did not request such a charge because it would have contradicted the defense theory that although Reid was present at the crime scene, he did not shoot the victim, and instead the victim was shot and killed by Reid's co-indictee. As counsel explained, "voluntary [manslaughter] would [mean] he killed him . . . as opposed to he didn't have anything to do with the killing, which was our defense. And I didn't want the jury to . . . just convict him on voluntary."

Accordingly, the record clearly shows that [Reid's] lawyer made the tactical decision to defend her client on the basis that he was innocent of any offense involving the death of the [victim], rather than by conceding that he was guilty of some lesser degree of homicide than murder. It is immaterial that another attorney may have made a different strategic decision. . . . "There are countless ways to provide effective assistance in any given case. Even the best criminal defense attorneys would not defend a particular client in the same way." [Cit.] "`Decisions about which jury charges to request are strategic and provide no grounds for reversal unless such tactical decisions are so patently unreasonable that no competent attorney would have chosen them.' (Cits.)" [Cit.]

King v. State, supra at 507 (2) (a). Reid has not shown that counsel's tactical decision was patently unreasonable, and therefore it provides no grounds for reversal.

(c) Reid also claims that trial counsel was ineffective in failing to object to the trial court temporarily closing the courtroom for the testimony of two witnesses, because of concerns about the safety of the two witnesses and security in the courtroom. See Young v. State, 269 Ga. 478, 479 (2) ( 499 SE2d 60) (1998) (trial court has discretion to use extraordinary security measures to prevent dangerous or disruptive behavior that threatens trial fairness and safety); State v. Drummond, 854 NE2d 1038, 1054 (Ohio 2006) ("maintaining court-room security and protecting witness safety supported the trial court's limited closure of the courtroom"); Rovinsky v. McKaskle, 722 F2d 197, 200 (5th Cir. 1984) (protecting witnesses from intimidation that would traumatize them or render them unable to testify justifies closure). The United States Supreme Court recently reversed a decision from this Court involving closure of a courtroom during voir dire, over the objection of the defendant. Presley v. Georgia, 558 U. S. ___ ( 130 SC 721, 175 LE2d 675) (2010). The Supreme Court held that trial courts are required to consider alternatives to closure even when they are not offered by the parties, and that this Court erred in concluding otherwise. Presley v. Georgia, supra. However, this case is distinguishable from Presley in that Reid did not object to the closing of the courtroom and the issue of closure is thus raised in the context of an ineffective assistance of counsel claim. Consequently, even if we assume for the sake of argument that trial counsel could have raised a meritorious objection on the ground that the trial court failed to consider alternatives to closure, Reid still must show that he was prejudiced by counsel's decision not to object to the brief closing of the courtroom. Glover v. State, 292 Ga. App. 22, 26-27 (3) ( 663 SE2d 772) (2008); Hunt v. State, 268 Ga. App. 568, 576 (6) (a) ( 602 SE2d 312) (2004); Turner v. State, 245 Ga. App. 294, 297-298 (4) (e) ( 536 SE2d 814) (2000).

The dissent posits that Reid is not required to show prejudice on his ineffectiveness claim because the courtroom closure was a structural error. The improper closing of a courtroom is a structural error requiring reversal only if the defendant properly objected at trial and raised the issue on direct appeal, as was done in Waller v. Georgia, 467 U. S. 39 ( 104 SC 2210, 81 LE2d 31) (1984), cited by the dissent, and as was also done in Presley v. Georgia, supra. However, where, as here, the issue of a courtroom closure is raised in the context of an ineffective assistance of counsel claim, prejudice will not be presumed. Glover v. State, supra; Purvis v. Crosby, 451 F3d 734, 740-741 (III) (11th Cir. 2006); State v. Butterfield, 784 P2d 153, 156-157 (Utah 1989).

It is one thing to recognize that structural errors and defects obviate any requirement that prejudice be shown on direct appeal and rule out an application of the harmless error rule in that context. It is another matter entirely to say that they vitiate the prejudice requirement for an ineffective assistance claim. . . . We cannot hold that attorney error in failing to object to the closing of the courtroom is so likely to result in prejudice that we will presume it, unless we are willing to defy the Supreme Court's specific admonition that when it comes to deciding ineffective assistance claims: "[Attorney errors] cannot be classified according to likelihood of causing prejudice." Strickland, [supra at 693]. We cannot dispense with the prejudice requirement for attorney error of this type without defying the Supreme Court's clear holding that except in three limited circumstances, which are not present here, a defendant must show that any error his counsel committed "actually had an adverse effect on the defense." [Cit.] That means he must prove a reasonable probability of a different result. [Cit.]

Purvis v. Crosby, supra. Indeed, to hold otherwise would encourage defense counsel to manipulate the justice system by intentionally failing to object in order to ensure an automatic reversal on appeal. State v. Butterfield, supra at 157. In this case, Reid

has failed to demonstrate how the failure to object to partial closure of the courtroom when the [two witnesses] testified resulted in harm. [Cit.] We [therefore] cannot find [a reasonable probability] that the outcome of the trial would have been different had spectators remained in the court-room during [such] testimony.

Hunt v. State, supra. Accordingly, the trial court did not err in rejecting the claim of ineffective assistance of counsel.

Judgment affirmed. All the Justices concur, except Hunstein, C. J., who dissents.

CARLEY, Presiding Justice.

DECIDED FEBRUARY 8, 2010.