delivered the opinion of the court:
The defendant, Edwin Jiminez, appeals his convictions of attempted murder and murder (Ill. Rev. Stat. 1979, ch. 38, pars. 8— 4(a), 9 — 1(a)). Following a jury trial, defendant was convicted and sentenced to two concurrent terms of 25 years in the Illinois State Penitentiary. On appeal, defendant contends (1) that the proper jury instructions were not given; (2) that certain evidence was improperly excluded; (3) that he was prejudiced by certain remarks of the prosecutor; and (4) that his counsel was incompetent.
We affirm.
Evidence adduced at trial may be summarized as follows: defendant shot and killed Mario Cantu and wounded Victor Padrón on February 29, 1980. The shootings occurred in the lobby of an apartment building at 1819 North Humboldt in Chicago, Illinois." Prior to the shooting, Cantu and Padrón were in the lobby for a few hours drinking rum. At about 5 p.m., defendant and some others entered the lobby. An argument ensued involving defendant, Padrón and Cantu. Defendant claimed that Cantu pulled a gun and threatened him. Although threats were made, no blows were stuck. Defendant and his friends left the lobby, as did Padrón and Cantu, shortly afterward. Approximately two hours later when Padrón and Cantu returned to the lobby, defendant was there. Name-calling followed. Defendant testified that the deceased (Cantu) had a gun and when Cantu attempted to shoot him, defendant shot back with a shotgun. Cantu was shot in *1093the back. Defendant then fired two additional blasts at Padrón as the latter fled the lobby and shot once over Padron’s head as he ran down the street. At trial, defendant maintained that he acted in self-defense.
First, defendant asserts that the jury should have been given instructions on voluntary manslaughter and specific intent. The trial judge’s failure to do so denied him his right to a fair trial.
This issue was not raised in a written post-trial motion. Assuming, arguendo, that the issue has not been waived, erroneous refusal of jury instructions is not an automatic vehicle of reversal. When, as in this case, the evidence supporting the jury’s finding is clear and convincing, then the error is harmless. See People v. Jones (1979) , 81 Ill. 2d 1, 405 N.E.2d 343.
Next, defendant contends that the trial court’s exclusion of evidence of Padron’s and Cantu’s prior criminal activities and Padron’s convictions were prejudicial to his defense.
After listening to both parties, the trial judge stated that the prior criminal convictions involved could not be used to show a person’s propensity to commit a crime. The record reflects that defense counsel’s argument supports the trial judge’s ruling. In fact, defense counsel stated that the acts in question show “propensity toward violence.” Even in cases where the defense of self-defense is raised, the victim’s character trait for aggression cannot be introduced unless it is shown that the defendant knew of the trait. (People v. Wolski (1980) , 83 Ill. App. 3d 17, 30, 403 N.E.2d 528, 538.) There is no such showing here. Therefore, the trial court correctly applied Illinois law in excluding the evidence in question.
Defendant next contends that State improperly insinuated that he was a member of a gang and that those remarks resulted in a violation of his constitutional rights. Defendant speculates as to what the jury’s reasons were for rejecting his self-defense testimony. He apparently concludes that the prosecutor’s remarks were the reason for his conviction. This argument is without merit.
There was sufficient evidence from which the jury could reasonably make a finding of guilty without the remarks complained of by defendant. Defendant testified that he shot the victims and fired two additional shots at Padrón as the latter tried to flee. The pathologist’s report showed that the deceased was shot in the back. The error complained of is not apparent, neither from the record nor from defendant’s argument.
Defendant’s final contention is that his trial counsel was incompetent, thus, denying him the right to effective assistance of counsel.
*1094Since Cuyler v. Sullivan (1980), 446 U.S. 335, 64 L. Ed. 2d 333, 100 S. Ct. 1708, several Illinois appellate court decisions suggest a shift toward applying a single standard of competence for both retained and appointed counsel. Those courts have said that the defendant must demonstrate actual incompetence of counsel which affects the outcome of the case. (See People v. Talley (1981), 97 Ill. App. 3d 439, 422 N.E.2d 1084; People v. Scott (1981), 94 Ill. App. 3d 159, 418 N.E.2d 805.) This standard has not been applied by the Illinois Supreme Court.
With the benefit of hindsight, defendant points out specific acts or omissions by his trial counsel as proof of the lawyer’s incompetence. A careful review of the record reveals nothing that rises to the level of incompetence. The acts and omissions complained of are well within the recognized areas of judgment and trial technique which every trial lawyer must determine on an individual basis. (See People v. Elder (1979), 73 Ill. App. 3d 192, 391 N.E.2d 403.) We cannot conclude that defendant’s trial attorney was incompetent.
For the foregoing reasons, the judgment of the circuit court of Cook County is affirmed.
Affirmed.
LINN, J., concurs.