Gregory, Justice.
This is a death penalty case. Appellant, Joseph Russell Parks, was convicted in DeKalb County of murder, rape and aggravated sodomy.1
Facts
The victim, 10-year-old Agnes Ann Watts, disappeared early in the evening of September 17, 1981. At 10:45 p.m., her body was discovered behind the refrigerator in an empty apartment from which Joseph Parks and his girl friend, Elise Talent, had recently been evicted by the victim’s mother, who managed the apartment complex.
[404]*404By 1:00 a.m., investigators learned that Parks and his girl friend had been the most recent occupants of the apartment, and that Parks had been seen in the area about the time the victim had disappeared.
An attempt to contact Parks at his new residence was unsuccessful, as he and Ms. Talent were out, so the police left word with a mutual friend of the couple that they should contact the police upon their return. They did and were asked to come to the police station.
Parks and Ms. Talent arrived at about 4:00 a.m. and were questioned separately.
Ms. Talent stated that sometime between 6:30 and 8:00 p.m. on the 17th, Parks had told her that a child’s body had been found behind a refrigerator in an empty apartment at their former apartment complex. She asked him if the empty apartment was their old apartment and he stated that he thought so. This statement was reduced to writing at 8:08 a.m.
Parks was questioned off and on throughout the day. He denied knowledge of the crime, claiming: “[I]f I did it, I didn’t know I did it.” Early in the morning, his clothes were removed from him and he was given a set of “jail blues” to put on. Later in the morning, Parks was examined by Dr. Joseph Burton, Medical Examiner for DeKalb and Cobb counties. (Parks testified that he wanted to prove his innocence, so he let them take all the tests they wanted.)
That afternoon, Parks again stated that if he had done it, he did not know it. However, he was able to pick out the victim from a picture of three young girls, and he admitted that he “might have” seen her at the entrance to the apartment complex and that she “could have flagged him down and asked him for a ride” or that “he could have . . . stopped and offered her a ride to her apartment.” Then he stated that “it could have happened in the car or it could have happened in the apartment,” and that “if he did it, he wanted some kind of help.” When asked what he had done with the victim’s clothes, Parks said that he “could have” thrown them “out behind the apartment” or else “out of the car when he left the apartment complex.”
Late in the afternoon of September 18, Parks was formally arrested. Between January 27 and February 19, 1982, Richard Gaily occupied the cell adjacent to the one occupied by Parks. Over a period of time, Parks admitted to Gaily the details of the crime.
Parks told Gaily that he had gone to his old apartment and the girl was already inside, in the bedroom. He grabbed her around the neck, threw her down on the floor, “snatched off the bottoms,” and raped and sodomized her. Then he strangled her, and, realizing she was dead, placed her in a corner of the kitchen. Parks stated that he did it for revenge, because the girl’s mother had evicted him from the apartment. He told Gaily that he had told the police he had been at the apartments at 3:30 and again at 8:00 p.m., but in fact he had also [405]*405been there at 5:45, and he was afraid that one witness who lived in the area was going to testify to that fact. (He did.)
Dr. Burton conducted the autopsy on the body of the victim. He estimated the time of death to be 6:00 p.m., give or take an hour or two. Cause of death was ligature and manual strangulation coupled with sexual trauma to the uterus and anus. Bruises on the victim’s arms, legs and chest indicated that the child had struggled with her attacker.
Dr. Burton also examined Parks. He observed recent bruising and abrasions on Parks’ arms, as well as a fresh abrasion on his scrotum. A fiber was discovered in his fingernail that was consistent with having come from the sweater that was around the victim’s neck when she was found, and his pubic hair was found to be similar to one discovered on the victim’s body.
The evidence was sufficient to support the convictions. Jackson v. Virginia, 443 U. S. 307 (99 SC 2781, 61 LE2d 560) (1979).
Enumerations of Error
1. Parks contends in his 1st enumeration of error that his rights under the Fifth, Sixth, Eighth and Fourteenth Amendments to the United States Constitution were violated by the admission in evidence of statements he made while in police custody on September 18, 1981.2
The record shows that when Parks was questioned, he was to some extent still under the influence of preludin (described by Dr. Burton as a synthetic amphetamine-type drug) that he had taken the night before. However, the record does not require a finding that Parks was by reason of this drug usage incapable of knowingly, voluntarily, and intelligently waiving his Miranda rights.
The record also shows that Parks did not sign a written waiver of [406]*406rights until just before he gave a written statement the afternoon of September 18. However, the record provides no support for Parks’ contention that statements were elicited from him only after “repeatedly unsuccessful attempts on the part of police officers to obtain a signed waiver of rights . . .” Brief of Appellant, pp. 9-10.
The trial court found that Parks “knowingly, intelligently, and voluntarily waived his constitutional rights after being advised thereof as required by Miranda v. Arizona, [384 U. S. 436 (86 SC 1602, 16 LE2d 694) (1966)]” and that considering the totality of the circumstances his “written statement and his oral admissions were made voluntarily, without being induced by hope of benefit or fear of injury.” Record, p. 91. These findings are not clearly erroneous and we therefore accept them. Rose v. State, 249 Ga. 628 (2) (292 SE2d 678) (1982).
We find no merit to Parks’ contention that, because the trial court did not make explicit findings of voluntariness until after trial, this case must be reversed. Cofield v. State, 247 Ga. 98 (4) (274 SE2d 530) (1981).
2. After the charge of the court at the guilt phase of the trial, the jury was sent to the jury room with the usual instructions that it was not to begin its deliberations until it received the indictment and the exhibits admitted in evidence. Then the court instructed the attorneys to review the exhibits to make sure that only those items which were supposed to go to the jury room went there. When they stated to the court that their review was completed, the court stated: “Let the record show that everything that is going to the jury room is agreed to by counsel to be only that which is to go to the jury room; is that right?” Attorneys for both sides agreed that was correct, and the items they had gathered together were sent to the jury.
Next, the court began the checklist review required by Rule III (A) (3) (b) of the Unified Appeal Procedure. See 252 Ga. at p. A-23. During this review, the court asked, “Where’s the defendant’s written statement?” The assistant district attorney did not know, and one of Parks’ attorneys stated: “Ten to one it went out.” The court sent the sheriff to the jury room to retrieve the exhibit and it was back in the courtroom less than 10 minutes after it had been given to the jury.
In his 2nd enumeration, Parks contends the court committed reversible error by permitting the written statement to be seen by the jury. See Royals v. State, 208 Ga. 78 (2) (65 SE2d 158) (1951). Under the circumstances recounted above, we find no reversible error.
3. Parks filed a pre-trial motion seeking, among other things, discovery of arguably exculpatory written statements of any person interviewed by any agent of the state in connection with this case, and an in camera inspection of the state’s file. See Tribble v. State, 248 Ga. 274 (280 SE2d 352) (1981). The trial court conducted an in cam[407]*407era inspection and ordered that a number of items be furnished to Parks. However, for some unknown reason, the state’s file did not include a written statement taken from Jan Brown (who lived with Parks and Elise Talent). Thus, her statement was not furnished prior to trial.
Jan Brown was called by the defense as an alibi witness. She testified that from 4:15 until after 8:00 p.m. on the evening of September 17, Parks was at home. On cross-examination, she admitted that she had been on the telephone during part of this time. The state then used her written statement to remind her that she had received three phone calls during this time, in an effort to show that she had been too distracted by other matters to know for sure that Parks had not been out at least some of this time.
After the conclusion of her testimony, the trial court stated: “Let the record reflect that ... in going through the court’s copy of the district attorney’s file ... I do not find a statement from Mrs. Jan Brown . . . [Apparently . . . [it] was not in the file ... A copy of Mrs. Brown’s statement has now been provided to the defense . . .”
In his 3rd enumeration, Parks contends that the failure to disclose this statement violated his rights under Brady v. Maryland, 373 U. S. 83 (83 SC 1194, 10 LE2d 215) (1963).3
Although Parks speaks of a failure to disclose, in fact, the statement was disclosed, albeit only after the trial commenced. See Castell v. State, 250 Ga. 776, 781 (301 SE2d 234) (1983). Thus, “ ‘[t]he appropriate standard to be applied [here] ... is whether the disclosure came so late as to prevent the defendant from receiving a fair trial.’ [Cit.]” United States v. Sweeney, 688 F2d 1131, 1141 (7th Cir. 1982).
Parks argues that if the statement had been timely furnished, then possibly the defense could have developed corroboration of Parks’ alibi, by talking to the persons with whom Mrs. Brown had spoken on the telephone. For example, Parks hypothesizes that one of these callers might have said, “Yeah, I remember Jan was yelling to Rusty [Parks] to be quiet. That was about 6:15.” Transcript, Motion for New Trial, p. 86.
Despite having ample opportunity to demonstrate that earlier disclosure would have led to the discovery of further alibi witnesses (see Rules IV (A) (5) (b) and IV (A) (6) of the Unified Appeal Procedure, as amended, 252 Ga. A-13 et seq.), Parks has offered no more [408]*408than speculation (of dubious plausibility) that such witnesses might have been discovered. See Ross v. State, 254 Ga. 22, 30 (326 SE2d 194) (1985). Parks has failed to meet his burden of establishing that he was denied beneficial evidence of such importance that he did not receive a fair trial. Rose v. State, supra, 249 Ga. at 629.
4. In his 4th and 6th enumerations, Parks contends his character was impermissibly placed in issue.
Regarding proof of his drug usage the day of the crime, we agree with the state that this evidence showed: (1) Parks’ state of mind at the time of the commission of the crime (see Walraven v. State, 250 Ga. 401, 408 (297 SE2d 278) (1982)); and (2) his mental and physical condition during the time he was being interrogated (see Mincey v. State, 251 Ga. 255, 266 (304 SE2d 882) (1983)).
The drug usage was part and parcel of the crime on trial, and was not inadmissible simply because it might have incidentally reflected on Parks’ character. Felker v. State, 252 Ga. 351 (1) (314 SE2d 621) (1984); Putman v. State, 251 Ga. 605 (2) (308 SE2d 145) (1983).
Parks also complains of the admission of testimony that after he was formally arrested he called one of the interrogating officers an obscene name. He argues that this evidence, although proving the commission of no crime, nonetheless was irrelevant evidence of bad character. See Felker v. State, supra at 365. While we hold that this evidence was irrelevant, we find it highly probable that this testimony did not contribute to the verdict. Therefore, we find no reversible error here. Johnson v. State, 238 Ga. 59 (230 SE2d 869) (1976).
5. Pre-autopsy photographs of the victim were relevant and admissible. Ramey v. State, 250 Ga. 455 (1) (298 SE2d 503) (1983). Enumeration 7 is without merit.
6. Parks contends that blacks were significantly underrepresented on the grand jury list in effect at the time of his indictment, and that young persons between the ages of 18 and 29 were underrepresented on the grand and traverse jury lists. In his 8th enumeration of error, Parks contends the trial court erred by denying his jury challenges.
(a) We first address Parks’ allegation that blacks are significantly underrepresented on the grand jury list. Viewing the evidence in the light most favorable to the defense, Parks has shown only a 5.24% underrepresentation of blacks (23.45% in the community versus 18.21% on the grand jury list). This is not such a significant disparity as would require quashing the indictment.4 West v. State, 252 Ga. 156 [409]*409(1) (313 SE2d 67) (1984); Wilson v. State, 250 Ga. 630 (6a) (300 SE2d 640) (1983).
(b) Next, we address the underrepresentation of persons between the ages of 18 and 29.
The evidence shows that persons between the ages of 18 and 29 (inclusive) comprise 33.3% of the 18 and over population of DeKalb County, 18.3% of the traverse jury list, and only 4.54% of the grand jury list.
DeKalb County uses a computer to select names from the voter list for inclusion on the traverse jury list. To compensate for the underrepresentation of blacks on the voter list, the computer selection process is not race-neutral (see below); however, it is age neutral, and insofar as age is concerned, selection from the voter list for inclusion on the jury list is completely random. Thus, any underrepresentation of young persons on the traverse jury list results from their under-representation on the voter registration list.
On the other hand, the testimony shows that the significant underrepresentation of young persons on the grand jury list is the result of an attempt by the jury commissioners to comply with the directive of OCGA § 15-12-40 that only the “most experienced” traverse jurors be selected for inclusion on the grand jury list.
Over the state’s objection, Parks was allowed to present expert testimony comparing the attitudes and values of persons between the ages of 18 and 29 with those of other age groups. After hearing this evidence, the trial court made a finding of fact that: “There are, in fact, according to the evidence presented, sufficiently distinct differences in relevant attitudes and beliefs held by the 18 to 29 age group from other adults to warrant the recognition of this group as a significantly identifiable group requiring their representative inclusion on the Grand and Traverse Jury Lists.” Record, p. 84.
The trial court denied the challenge, however, because it interpreted our cases to say that young persons can never constitute a cognizable group for purposes of jury challenge. See, e.g., Thomas v. State, 248 Ga. 247 (3) (282 SE2d 316) (1981); Bowen v. State, 244 Ga. 495, 500 (260 SE2d 855) (1979); Davis v. State, 241 Ga. 376 (1) (247 SE2d 45) (1978); Hudson v. State, 240 Ga. 70, 71 (239 SE2d 330) (1977).
More recently, the 11th Circuit Court of Appeals has held: “Whether or not a class of persons is . . . sufficiently distinct and cognizable for sixth amendment fair-cross-section analysis is a question of fact . . . The distinctiveness and homogeneity of a group under the sixth amendment depends upon the time and location of [410]*410the trial.” Willis v. Zant, 720 F2d 1212, 1216 (11th Cir. 1983) (cert. denied, 103 SC 3546). We, too, have recognized that cognizable groups might be defined by factors other than race or sex. Holcomb v. State, 254 Ga. 124 (2) (326 SE2d 760) (1985). See also West v. State, supra, 252 Ga. at 162-163 (Gregory, J., concurring.)
Thus, we cannot agree with the state’s contention that as a matter of law young persons can never constitute a distinct group cognizable in a jury challenge.
In this case, the defendant proved a statistically significant underrepresentation of a group which the trial court found to be distinct and identifiable. Assuming without deciding that the evidence authorized this finding and that the group should therefore be recognized, the inquiry nonetheless does not end here. Remaining to be resolved is the legal significance of the disparity, in the context of a defendant’s right to equal protection of the law under the Fourteenth Amendment, and to a jury venire representing a fair-cross-section of the community under the Sixth Amendment and under OCGA § 15-12-40.
“[PJrecise mathematical standards for gauging disparity have not been formulated.” West v. State, supra at 158. However, “approximate boundaries” for acceptable underrepresentations of groups defined by race or sex have been delineated in numerous cases. See Machetti v. Linahan, 679 F2d 236 (11th Cir. 1982). For reasons which follow, we conclude that these boundaries are inappropriately strict for application to other distinct groups.
Equal protection doctrine does not forbid the making of any distinctions, nor require that all forms of discrimination be given equally intense judicial scrutiny. Certain groups have been “saddled with such disabilities, or subjected to such a history of purposeful unequal treatment, or relegated to such a position of political powerlessness as to command extraordinary protection from the majoritarian political process.” San Antonio Independent School District v. Rodriguez, 411 U. S. 1, 28 (93 SC 1278, 36 LE2d 16) (1973). Thus, classifications based upon race, nationality, or sex call for close (or strict) judicial scrutiny. Orr v. Orr, 440 U. S. 268 (99 SC 1102, 59 LE2d 306) (1979) (sex); McLaughlin v. Florida, 379 U. S. 184 (85 SC 283, 13 LE2d 222) (1964) (race); Oyama v. California, 332 U. S. 633 (68 SC 269, 92 LE 249) (1948) (nationality). Other classifications, including classifications based on age, have not been subjected to such scrutiny. Vance v. Bradley, 440 U. S. 93 (99 SC 939, 59 LE2d 171) (1979); Massachusetts Bd. of Retirement v. Murgia, 427 U. S. 307 (96 SC 2562, 49 LE2d 520) (1976).
The right to a jury representing a fair-cross-section of the community (derived from the Sixth Amendment, as applied to the states by the Fourteenth) is not “entirely analogous” to the right of equal [411]*411protection of the law respecting jury selection procedures. Duren v. Missouri, 439 U. S. 357, 368 (n. 26) (99 SC 664, 58 LE2d 579) (1979). Nonetheless, the similarities have not gone unnoticed. Id. at 1370-71 (Rehnquist, J., dissenting) (comparing means of justifying gender disparities under the Sixth Amendment with means of justifying gender classifications under the equal protection clause). See also Willis v. Zant, supra, 720 F2d at 1216 (citing Hernandez v. Texas, 347 U. S. 475 (74 SC 667, 98 LE 866) (1954), an equal protection case, for the proposition that the cognizability of a particular group, for Sixth Amendment fair-cross-section analysis, is a question of fact).
Thus, we conclude that we were correct when we stated, over ten years ago, that: “It is not necessary here for us to rule that persons of the age group 18 to 30 cannot ever be a constitutionally cognizable group for purposes of jury selection . . . Young persons, though they certainly belong in the cross-section, do not make up a constitutionally highly protected class, that is, one which has suffered oppression and discrimination; and their claimed underrepresentation does not invoke a high standard of judicial review.” Payne v. State, 233 Ga. 294 at 308-309 (210 SE2d 775) (1974).
With the foregoing in mind, we return to the facts of this case.
Young persons are greatly underrepresented on the DeKalb grand jury list. However, this underrepresentation is explained by the jury commissioners’ compliance with the legal requirement that only a limited number of the “most experienced” persons on the traverse jury list be selected for inclusion on the grand jury list. The fair-cross-section language of OCGA § 15-12-40 obviously must be read in light of the grand jury experience requirement in the same code section. Thus we find no statutory violation in the grand jury age makeup. Nor do we find any federal constitutional violation. Experience and age are rationally related, and in view of the duties of grand juries (in addition to returning criminal indictments) we do not find the statutory demand for experience to be unjustified. See OCGA §§ 15-12-75, 76, 77, 78, 79 and 80. The age disparities shown here are acceptable. Compare Julian v. State, 134 Ga. App. 592 (1) (215 SE2d 496) (1975) (grand jury list consisting of persons averaging 69 years of age was unacceptable).
Young persons are also underrepresented on the DeKalb traverse jury list. This underrepresentation, however, did not result from subjective manipulation of the source list, but rather, from the fact that the source list itself contained an underrepresentation of young persons.
The source list, of course, was the voter registration list, the primary source contemplated by OCGA § 15-12-40. Some convenient list obviously is needed in a metropolitan county like DeKalb, which has nearly half a million people according to the 1980 official census. The [412]*412voter list has the advantage that qualifications for voting and qualifications for jury service are nearly the same. Compare 1983 Const., Art. II, Sec. I, Par. II, with OCGA § 15-12-163. It is therefore more likely to be representative of the eligible members of the community than other lists that might be available (e.g., driver’s license lists, tax lists, and the like).
Still, the voter list might underrepresent some distinct, identifiable group in the community and, by law, the jury commissioners have the power to supplement it. See Ingram v. State, 253 Ga. 622 (1 d) (323 SE2d 801) (1984). In practice, however, such supplementation can be difficult, as testimony regarding efforts to correct the under-representation of blacks illustrates.
In the years preceding this trial, the DeKalb jury commissioners had been aware that blacks were underrepresented on the voter list and, hence, on the jury list. The commissioners, one of whom was black, did not personally know enough blacks to add to the jury list to significantly change the percentages (which is understandable in view of the size of the list). The commissioners met with a number of prominent black community leaders to discuss ways of correcting the disparity. Various attempts were made to increase black voter registration, to distribute forms for inclusion on the jury list, and to place articles in newspapers encouraging jury service. These efforts were largely unsuccessful. The commissioners considered alternative source lists. The state driver’s license file did not have a “county code” or a “race code” in its computer program and was therefore essentially unusable. The tax file was duplicative, and the water and sewer files contained the names primarily of property owners. Finally, as an interim solution, the jury list was computer manipulated to decrease the number of whites on the list, which brought the black percentages in line. At the time of this trial, a more permanent solution was still being worked on.
Such herculean efforts to correct an underrepresentation of a “suspect” class doubtless are required. However, given the size of the task, and keeping in mind that the same voting registration standards apply to persons between the ages of 18 and 30 as to persons over 30 and that “the status of being a voter or a non-voter essentially may be changed at will,” (Ingram v. State, supra at 629), we conclude that such efforts are unnecessary to correct a 15% underrepresentation of young persons, even where, as here, the trial court has found such a class to be cognizable.5 Thus, we find no error in the denial of Parks’ [413]*413challenges to the DeKalb grand and traverse juries.
7. In his 9th enumeration, Parks contends the trial court erred by refusing to excuse three prospective jurors whose voir dire answers demonstrated a disqualifying bias.
Two of these prospective jurors “were not challenged at trial and the trial court did not err by failing to excuse these jurors on the court’s own motion.” Spivey v. State, 253 Ga. 187, 194 (319 SE2d 420) (1984).6
The remaining juror had heard something about the crime, but had no opinion as to guilt and she stated that she could impartially evaluate the evidence. The trial court did not err by refusing to excuse this juror. Devier v. State, 253 Ga. 604 (3) (323 SE2d 150) (1984).
8. We find no merit to Parks’ 10th enumeration, in which he contends that the trial court overly restricted the voir dire examination. Id. at 606.
9. The court did not err by failing to disqualify the entire venire on its own motion because of a comment by a prospective juror. Cf. Wilson v. State, supra, 250 Ga. at 636-37 (6). Enumeration 11 is without merit.
10. The practice of death-qualification of jurors is not unconstitutional. Mincey v. State, supra, 251 Ga. at 257-59 (2). Enumeration 12 is meritless.
11. The court did not err by excusing four prospective jurors conscientiously opposed to the death penalty. Their opposition to capital punishment, and their inability to impose it, is clear from the record. Parks’ 13th enumeration is without merit. Wainwright v. Witt, _ U. S. __ (105 SC 844, _ LE2d _ ) (1985).
12. At the guilt-innocence phase of the trial, the court charged malice as it is defined in OCGA § 16-5-1 (b). After the jury had been deliberating for a while, it sought clarification of the concept of “mal[414]*414ice aforethought” and “its relationship to premeditation, if any.”
The court re-charged the language of OCGA § 16-5-1 (b) and then proceeded as follows:
“Now, since you asked in your note for an explanation of the relationship between malice and premeditation, if any, I will at this point give you an additional charge in that connection that I did not give you previously.
“The mental intention for malice murder is malice which can be described as an intention to kill another human being.
“There are two kinds of malice, express and implied. Express malice is that which is proven by the defendant’s own actions. The mental state of express malice is not to be confused with premeditation, which some jurisdictions define as the mental state required for first degree murder. Premeditation is not an element of murder in Georgia, and the malice which is required for murder can be formed in an instant so long as it is present at the time of the act of killing.
“The intention to kill, like any other intention, is rarely capable of proof out of the mouth of the defendant or through prior specific prior [sic] acts connected to the defendant. Therefore, the murder statute provides that there can be a finding by a jury of implied malice. Implied malice is an intention to kill which is proven either by the act of killing itself, the surrounding circumstances, or the absence of any provocation.” (Emphasis supplied.)
In his 14th enumeration of error, Parks contends this instruction was unconstitutional under the standards established by the United States Supreme Court in cases such as Sandstrom v. Montana, 442 U. S. 510 (99 SC 2450, 61 LE2d 39) (1979); and Mullaney v. Wilbur, 421 U. S. 684 (95 SC 1881, 44 LE2d 508) (1975). We must agree.
In considering a possible Sandstrom violation, “we must first determine what construction a reasonable juror might have placed on the contested charge.” Johnson v. State, 249 Ga. 621, 622 (292 SE2d 696) (1982). Here, a reasonable juror could have construed the portion of the court’s charge emphasized above as an “irrebuttable direction” (Sandstrom, supra at 517) to find intention to kill upon proof of either (1) absence of provocation, or (2) the act of killing itself.7
Intent to kill is an essential element of both murder and voluntary manslaughter. OCGA §§ 16-5-1 and 16-5-2. Provocation, or the lack thereof, is what distinguishes the two offenses. Proof of the absence of provocation may not substitute for proof of intent to kill, as [415]*415the court’s charge erroneously implied. See Davis v. State, 237 Ga. 279 (2) (227 SE2d 249) (1976).
The act of killing must also be proved in a murder case. That is, in addition to proving malice, the state must prove a homicide, i.e., that the defendant “cause[d] the death of another human being.” OCGA § 16-5-1 (a). Proof of this element of the offense of murder cannot, as the court’s charge erroneously implied, relieve the state of its burden to prove malice beyond a reasonable doubt. Johnson v. State, supra (lb).
Viewing the erroneous charge in the context of the charge as a whole, as we must do (Felker v. State, supra, 252 Ga. at 381), we cannot say that the error was neutralized by the court’s general instructions, which were not theoretically inconsistent with the erroneous charge. See Sandstrom at 518 (n. 7). Nor can we say the error was harmless beyond a reasonable doubt. Compare Lamb v. Jernigan, 683 F2d 1332, 1342 (11th Cir. 1982).8
Since the foregoing discussion demonstrates the necessity of reversing Parks’ conviction for murder, we need not address his contention that other portions of the re-charge also were erroneous.
13. In his 5th enumeration, Parks complains of numerous alleged instances of prosecutorial misconduct. In only one instance was a contemporaneous objection made (during the state’s examination of a witness at the guilt-phase of the trial). Parks did not seek a ruling on this objection.
We find no misconduct so egregious as to require reversal of the convictions despite the lack of contemporaneous objection. Conner v. State, 251 Ga. 113 (303 SE2d 266) (1983).
The trial court found on motion for new trial that prosecutorial argument at the sentencing phase of the trial was so egregiously improper as to have resulted in a death sentence influenced by passion, prejudice or other arbitrary factor. See OCGA § 17-10-35 (c) (1). Since the death sentence must be vacated along with Parks’ conviction for murder, we need not determine whether this finding would by itself require reversal of the death sentence.9
[416]*416Nevertheless, we take this opportunity to reiterate that prosecutors should not inject into their arguments “extrinsic and prejudicial matters which have no basis in the evidence. [Cit.]” Conner v. State, supra at 123. Closing argument is not an opportunity for the prosecutor, in effect, to present additional testimony.
In his argument in this case, the prosecutor described his own visit to the crime scene, observing among other things that “death was in the air,” and that “seasoned officers” were “openly sobbing and trembling.” He described his difficulty sleeping at night. He told the jury of his conversations with the defendant’s parents outside the courtroom, and he talked about his prayers for his children.
These and other improprieties will doubtless be avoided on retrial.
14. Parks’ 15th enumeration of error, in which he contends the trial court erred at the sentencing phase of the trial by charging that, whatever the jury’s verdict was, it had to be unanimous, is without merit. “The instruction given was a correct statement of the law,” Allen v. State, 253 Ga. 390, 393 (2) (321 SE2d 710) (1984); and “the trial court is not required to instruct the jury that lack of unanimity forecloses imposition of the death penalty . . .” Legare v. State, 250 Ga. 875, 877 (302 SE2d 351) (1983).
15. Any possible error shown by enumeration 16 may be avoided on retrial by compliance with West v. State, supra, 252 Ga. 158-60 (2).
16. The state is not precluded from urging the presence of both OCGA §§ 17-10-30 (b) (2) and (b) (7) simply because rape is a fact supporting both circumstances. Castell v. State, supra, 250 Ga. at 794; Waters v. State, 248 Ga. 355 (11) (283 SE2d 238) (1981). Enumeration 17 is without merit.
17. Enumeration 18, complaining of the adequacy of the court’s charge on mitigating circumstances, is answered by Ross v. State, supra, 254 Ga. at 31-33 (6).
18. We find no merit to Parks’ 19th enumeration, in which he contends that the death penalty in Georgia, and particularly in DeKalb County, has been enforced in an arbitrary, capricious, and racially discriminatory manner. See McCleskey v. Kemp, 753 F2d 877 (11th Cir. 1985).
19. The convictions for rape and aggravated sodomy are affirmed. The conviction for murder and the death sentence based thereon are reversed.
Judgment affirmed in part, reversed in part.
All the Justices concur, except Marshall, P. J., Smith and Weltner, JJ., who dissent.