Gregory Michael Lamb, his brother Mark Lamb, Bobby Boysworth and Rhonda Herrington were indicted in the beating death of Williford Eugene Williamson. 1 Lamb was found guilty of felony murder and possession of a firearm during the commission of a crime. The trial court denied his motion for a new trial and he appeals. 21. The jury was authorized to find that the victim kept $50 Mark Lamb had given him for the purchase of drugs and that appellant, armed with a weapon, joined his brother in an unsuccessful search for the victim. A few days or weeks later, appellant spotted the victim at a local nightclub and arranged with Herrington to keep the victim occupied while appellant contacted Boysworth and Mark Lamb. The intoxicated victim joined Herrington in a car driven by Boysworth; the Lambs and witness Capri Pope followed in another car. With the help of his co-defendants, appellant pulled the victim out of the car and beat, kicked, and stabbed the victim for a two to ten minute period. The victim was also shot once in the leg with appellant's semi-automatic gun and an attempt was made to set his shirt on fire. The victim was left in the parking lot where his body was found the next morning. He died of blunt trauma to the brain caused by a flat object, such as a fist or shoe. We find the evidence sufficient to enable a rational trier of fact to find appellant guilty of the charged crimes beyond a reasonable doubt. Jackson v. Virginia, 443 U. S. 307 (99 SC 2781, 61 LE2d 560) (1979). 2. Appellant's first, second and fourth enumerations of error were considered by this Court in ruling upon co-defendant Mark Lamb's appeal and were decided adversely to appellant's contentions in the instant appeal. Lamb v. State, 263 Ga. 118 (2), (3) ( 428 SE2d 349) (1993). 3. Appellant asserts that he was denied a fair trial because of ineffective assistance of trial counsel. Applying the standard for evaluating a claim of ineffective assistance of counsel set forth in Strickland v. Washington, 466 U. S. 668 (104 SC 2052, 80 LE2d 674) (1984), our review of the record reveals that the trial court correctly concluded that appellant failed to show that trial counsel's performance was deficient and that the deficient performance prejudiced his defense. See Stephens v. State, 265 Ga. 120 (2) (453 SE2d 443) (1995). 34. This Court has considered and rejected the argument that a defendant is entitled to a charge on misdemeanor involuntary manslaughter where he claims he acted in self-defense. See Saylors v. State, 251 Ga. 735 (3) (309 SE2d 796) (1983). Accordingly, the trial court did not err by denying appellant's request to charged on this issue. 5. We find no error in the trial court's denial of appellant's pretrial motion to dismiss the indictment made on the basis that comments allegedly made by the district attorney to the news media constituted prosecutorial misconduct. 4 Appellant has not shown and the record does not reveal how the alleged misconduct prejudiced his right to a fair trial. See Jordan v. State, 247 Ga. 328 (1) (276 SE2d 224) (1981); United States v. Morrison, 449 U. S. 361 (101 SC 665, 66 LE2d 564) (1981). See also Robinson v. State, 200 Ga. App. 515(1) ( 408 SE2d 820) (1991). 6. After oral argument was heard in his appeal, appellant, purporting to have discharged his appellate counsel, filed pro se in this Court a brief raising additional enumerations of error. Because these enumerations are untimely, they will not be considered. Brooks v. State, 265 Ga. 548 (8) (458 SE2d 349) (1995); Arkwright v. State, 223 Ga. 768, 769 ( 158 SE2d 370) (1967). Daniel J. Craig, District Attorney, Charles R. Sheppard, William C. Davison, Assistant District Attorneys, Michael J. Bowers, Attorney General, for appellee. | 
