Defendant assigns as error the denial of his motion for judgment as of nonsuit. However his argument on this point is limited to the statement, “This is a formal assignment of error and is brought forward to preserve the record.” This assignment is abandoned. Rule 28, Rules of Practice in the Supreme Court of North Carolina. Suffice it to say that there was plenary evidence that defendant murdered Robert Waller.
We deem it unnecessary to set out the facts in detail. In brief, evidence for the State tended to show: Defendant picked up two hitchhikers, Kent Wells and Robert' Waller, on his way to Greensboro from Danville, Virginia. Wells and Waller were early for a concert at the Greensboro Coliseum so they rode around with defendant, sharing his marijuana cigarettes, and trying to find defendant’s “girl friend” Linda. In the course of the episode at the end of a dirt road defendant held up Wells and Waller with a gun and knife, demanding money and submission to homosexual acts. A fight ensued. Waller was stabbed and shot and died as a result of these wounds. Wells escaped. Evidence for defendant tended to show: At the scene of the incident Wells grabbed a bag of defendant’s marijuana which precipitated heated discussion and a general fist fight. Waller pulled out a knife, threatened defendant with death, and demanded his money. Defendant stabbed Waller with his own knife and shot him solely for his own protection. The evidence for the defendant tended to show self-defense. Synthesizing the two accounts the jury could also have found that defendant, although not acting lawfully, nevertheless killed in the heat of passion on sudden provocation or used excessive force in an otherwise proper self-defense.
*242 [2, 3] Defendant assigns as error the charge of the court relative to the presumptions of malice and unlawfulness and the burden of proof as to heat of passion on sudden provocation and burden of proof on self-defense contending that it violates Fourteenth Amendment Due Process as interpreted in Mullaney v. Wilbur, 421 U.S. 684 (1975). In his charge the trial judge placed upon the State the burden of proving beyond a reasonable doubt that defendant “intentionally and without justification or excuse [i.e., unlawfully] and with malice stabbed and shot Robert Waller with a deadly weapon.” However the trial judge also instructed that “[i]f the State proves beyond a reasonable doubt that the defendant intentionally killed Robert Waller with a deadly weapon or intentionally inflicted a wound upon Robert Waller with a deadly weapon that proximately caused his death, the law raises two presumptions: First, that the killing was unlawful; and second, that it was done with malice.” The court also charged that “[i]n order to reduce the crime from second degree murder to manslaughter, the defendant must prove not beyond a reasonable doubt but simply to your satisfaction that there was no malice on his part. And in order to excuse his act altogether on the ground of self-defense, the defendant must prove not beyond a reasonable doubt but simply to your satisfaction that he acted in self-defense.” The constitutionality of this type of charge has been considered at length in State v. Hankerson, 288 N.C. 632, 220 S.E. 2d 575 (1975) and State v. Williams, 288 N.C. 680, 220 S.E. 2d 558 (1975). In these cases we held that the presumptions of unlawfulness and malice arising from an intentional assault with a deadly weapon proximately resulting in death are constitutional. In State v. Hanker-son, supra, we held that although the charge in its entirety unconstitutionally relieved the State of proving malice, i.e., absence of heat of passion, and unlawfulness beyond a reasonable doubt when those issues were raised by the evidence, the decision in Mullaney v. Wilbur, supra, was not to be applied retroactively to trials conducted before the date of that decision, June 9, 1975. In this case defendant was tried during the second week of the March 31, 1975 Criminal Session of Guilford County Superior Court. Judgment was entered April 11, 1975. This assignment of error is overruled.
 Defendant contends that the court erred in instructing that second degree murder differs from first degree murder, inter alia, in that a specific intent to kill is not an element of second degree murder. “A specific intent to kill ... is not an element *243of second degree murder or manslaughter.” State v. Gordon, 241 N.C. 356, 358, 85 S.E. 2d 322, 324 (1955). Compare State v. Williams, 288 N.C. 680, 220 S.E. 2d 558 (1975) with State v. Winford, 279 N.C. 58, 181 S.E. 2d 423 (1971). This contention is consequently without merit.
 Defendant next argues that the court erred in admitting evidence of flight and in failing to instruct the jury, without request, on the weight to be accorded this evidence. The defendant was arrested at his home some days after the crime with his car fully loaded with clothing and cooking utensils. The car was impounded. A witness for the State was allowed to testify to numerous articles found in the back seat and trunk of the automobile and photographs were admitted which illustrated his testimony. This testimony was clearly admissible and competent to be considered by the jury in passing upon defendant’s guilt. State v. Self, 280 N.C. 665, 672, 187 S.E. 2d 93, 97 (1972); accord, State v. Lampkins, 283 N.C. 520, 196 S.E. 2d 697 (1973); 2 Stansbury’s North Carolina Evidence § 178 (Brandis Rev. 1973).
That the testimony was admissible does not require the judge, without a request therefor, to instruct the jury as to the weight to be given this evidence. In the absence of a special request the trial judge is not required to instruct the jury on subordinate features of a case. “ [I] nstructions as to the significance of evidence which do not relate to the elements of the crime itself or defendant’s criminal responsibility therefor have been considered subordinate features of the case.” State v. Hunt, 283 N.C. 617, 624, 197 S.E. 2d 513, 518 (1973). Flight is not an element of the State’s case nor is its absence a defense. It is merely a circumstance to be considered by the jury in determining a general mens rea in a criminal case. State v. Lampkins, supra.
 Several photographs were admitted into evidence of the crime scene although the witness who identified the photographs had been at the scene at night and the photographs had been taken during the daytime. Defendant contends this was error. This contention was squarely rejected in State v. Johnson, 280 N.C. 281, 286, 185 S.E. 2d 698, 701 (1972) where we said:
The admissibility of the photographs for the limited purpose did not depend on the degree or the source of the illumination at the time they were made. The photographs *244were admissible for the purpose of illustrating the testimony to the end that the court and jury might better evaluate it.
We, likewise, reject it here.
 Defendant raises the question whether the trial judge erred in allowing cross-examination of defendant as to prior criminal charges against him. If this had been done it would, of course, have been error. We held in State v. Williams, 279 N.C. 663, 185 S.E. 2d 174 (1971) that it is improper to cross-examine a witness as to indictments, warrants or arrests which may have been made against him. There are several reasons why Williams is inapplicable here. First, the District Attorney repeatedly asked defendant what he had been convicted of, not what he had been charged with. It was defendant who unresponsively volunteered information as to charges. Second, defendant’s motion to strike all this testimony was allowed and the judge instructed the jury to disregard all of it. The general rule is that if “evidence erroneously admitted is later excluded or withdrawn and the jury instructed to disregard it, ordinarily the error in admitting it will be regarded as harmless.” 1 Stansbury’s North Carolina Evidence § 28 (Brandis Rev. 1973). Third, it appears from his testimony that in fact defendant was convicted of the crime about which the District Attorney inquired — an assault and battery tried April 4, 1972, in Corporation Court in Danville, Virginia, but that in that case he noted an appeal and was not represented by an attorney. From the record, the most likely reason the trial judge struck the testimony and instructed the jury to disregard it was not that he considered it merely a charge but that he was afraid it would be a violation of due process to impeach defendant by proof of prior convictions which were void because defendant was not represented by counsel. Compare Argersinger v. Hamlin, 407 U.S. 25 (1972) with Loper v. Beto, 405 U.S. 473 (1972).
 Defendant next contends that the court erred in allowing cross-examination of defendant concerning the circumstances of his undesirable discharge from military service. It would serve no useful purpose to consider each question and objection. Suffice it to say that no error was committed. It is settled in this State than an accused person who testifies as a witness may be cross-examined regarding prior acts of misconduct. State v. Gainey, 280 N.C. 366, 185 S.E. 2d 874 (1972).
*245  Defendant complains that certain questions on cross-examination violated his privilege against self-incrimination. At one point defendant was asked if he had ever told a law enforcement officer that he had been the victim of an attempted robbery by Wells and Waller. After objection and a bench conference the question was withdrawn. At another point he was required to answer the question, “When, if ever, Mr. Lester, did you turn yourself in to the police?” Defendant had already testified that he had “returned from Lexington to Greensboro because I did not want to run.” It was entirely proper thereafter for the State to show that he had not voluntarily turned himself in. A testifying defendant is subject to impeachment by cross-examination, generally to the same extent as any other witness. 1 Stansbury’s North Carolina Evidence §§ 39, 56 (Brandis Rev. 1973). There was already abundant evidence in the record of the fact and circumstances of defendant’s arrest. Assignments of error to which this argument is directed are overruled.
Defendant argues that the trial court erred in allowing testimony for corroborative purposes which was not in fact corroborative. The witness Wells testified without objection that defendant had said he had “good connections” in Richmond. An objection was then sustained to the question, “What, if anything, did you take that to mean?” The witness Knight testified for the purpose of corroborating Wells’ testimony that Wells had hold him (Knight) that defendant said he had “some type of connections in Richmond.” An objection (not a motion to strike) was lodged to this answer. The overruling of the objection is assigned as error. We are of the opinion that the testimony did corroborate the earlier testimony of Wells which had been admitted without objection. There is no merit to this argument. See State v. Patterson, 288 N.C. 553, 220 S.E. 2d 600 (1975).
We have carefully examined all defendant’s assignments of error and find them to be without merit.
In the trial we find