[1] The defendant first assigns as error that the.court failed to instruct the jury as to the effect of insanity or mental weakness on premeditation and deliberation.
The court instructed the jury as to the proper test for determining whether or not defendant was legally sane at the time of the killing. The defendant requested no further instructions when the trial judge made inquiry about it. Our Court *349has previously ruled on this particular problem in two recent cases, State v. Cooper, 286 N.C. 549, 213 S.E. 2d 305 (1975), and State v. Wetmore, 287 N.C. 344, 215 S.E. 2d 51 (1975). In Wetmore our Court discussed, but clearly did not adopt, what has been called the theory of diminished responsibility with respect to the specific intent to commit a crime such as first-degree murder. Under this theory, some of the States hold that a defendant may offer evidence of an unusual or abnormal mental condition which is not sufficient to establish legal insanity, but tends to show that he did not have the capacity to premeditate or deliberate at the time of the murder.
Finally, as to this first assignment of error, in this type of murder the State must prove beyond a reasonable doubt that the killing was with premeditation and deliberation. G.S. 14-17; Strong, N. C. Index 2d, Homicide, § 4, and numerous cases therein cited. “[A] specific intent to kill is a necessary ingredient of premeditation and deliberation. [Citations omitted.] It follows, necessarily, that a defendant who does not have the mental capacity to form an intent to kill, or to premediate and deliberate upon the killing, cannot be convicted of murder in the first degree, . . . The jury by its verdict, has established that the defendant, at the time of the alleged offenses, had the mental capacity to know right from wrong with reference to these acts. . . . That finding, supported as it is by ample evidence, is conclusive on appeal, ...” State v. Cooper, supra, at 572, 213 S.E. 2d at 320. This is so even though the opinion of Dr. Rollins was to the contrary as indicated in assignments of error discussed below. This assignment of error is overruled.
Defendant’s Assignment of Error No. 2 is the denial of his motion to nonsuit at the close of the State’s evidence and at the close of all the evidence.
On a motion for nonsuit the evidence for the State must be considered in its most favorable light and should be taken to be true. Conflicts and discrepancies in the evidence should be resolved in the State’s favor. State v. Cooper, supra; State v. Cutler, 271 N.C. 379, 156 S.E. 2d 679 (1967).
[2] In our situation, the motion for nonsuit as to first-degree murder was primarily based on defendant’s claim that at the time of the killing, the defendant was insane, and, therefore, not responsible for his acts. In addition, the defendant contends *350the State has failed to prove beyond a reasonable doubt that the killing was with premeditation and deliberation.
The evidence indicates sanity as well as premeditation and deliberation. Three witnesses and a police officer saw and heard the defendant shortly after the killing. Mary Jo Jarvis arrived at the scene of the killing and observed the defendant. She heard him say, “I just killed my wife and shot myself.” Later the defendant walked up closer to Mrs. Jarvis and said, “Please get my mother, I haven’t got long to live, I want my mother.” William C. Autry came upon the scene and saw a woman lying out in the road and a rifle nearby. He went to a telephone and reported this to the police authorities. When he returned, he found that the body of the woman had been moved to the side of the road. He saw the defendant kneeling beside her. The defendant twice told him that he had killed the woman and that he had caught her with some men up on the mountain. The defendant had apparently been shot in the chest at this time. Defendant, who was partly crying at the time, also said to Mr. Autry, “I’m shot, and I’m dying.” Frank Tweed observed the defendant at the scene and heard him say, “I killed my wife.” R. D. Poore, a detective sergeant with the Asheville police, made the investigation. He identified the Remington .22 caliber semi-automatic rifle, a butt loader that only shoots .22 caliber long shells. He found fourteen spent .22 cartridges there on the pavement. The police officer later went to the hospital and saw the defendant. A voir dire hearing was conducted by the court and it was determined that the statements made by defendant to the police officer were admissible. After the defendant had been advised that he could call an attorney or a friend, he said to the police officer: “I don’t want no counsel or call nobody. I’ve shot my wife. I’ve killed my wife and I want to die.” He then added that he killed his wife because he caught her running around with a man; that she was no good but that he loved her. These statements were made by the defendant not in response to any question from the police officer.
Dr. Rollins, a medical expert specializing in the field of psychiatry and now Director of the Forensic Unit at Dorothea Dix Hospital, gave as his opinion that the defendant was unable to distinguish right from wrong at the time of the killing. Unfortunately, Dr. Rollins did not examine the defendant until more than five years after the killing. In the meantime he had been under the care of Dr. Laczko, now deceased. Dr. Laczko-*351did not see the defendant until more than three months after the killing. Dr. Rollins had to base his opinion upon the records of Dr. Laczko and his personal examinations more than five years after the killing. It is interesting to note that Dr. Rollins on cross-examination admitted that the murder could have contributed to the defendant’s unstable mental condition when he entered Dorothea Dix Hospital on 19 December 1966.
The witnesses and the police officer observed the defendant immediately after the crime. Certainly what they observed at the time did not indicate insanity. These actions, shortly after the slaying, tend to show that the defendant did know right from wrong and that he knew that he had killed his wife. He was obviously remorseful and tried to justify what he had done by the explanation that she was running around with one or more men. Certainly, as Dr. Rollins indicated, the fact that the defendant had committed this crime probably could have contributed to his subsequent depression and mental illness. In view of the evidence, the question of legal insanity was for the jury to decide.
On 26 August 1975 counsel for defendant filed with this Court a memorandum of additional authority, to wit, Mullaney v. Wilbur, 17 Cri. 3063, 44 L.Ed. 2d 508 (1975), to sustain these contentions. Mullaney was not based on a plea of insanity and is no authority for these assignments of error.
As indicated above, defendant also contends the evidence was insufficient to satisfy the jury with respect to premeditation and deliberation.
“Of course, ordinarily, it is not possible to prove premeditation and deliberation by direct evidence. Therefore these elements of first-degree murder must be established by proof of circumstances from which they may be inferred. [Citations omitted.] Among the circumstances to be considered by the jury in determining whether a killing was with premeditation and deliberation are: Want of provocation on the part of the deceased; the conduct of the defendant before and after the killing; the use of grossly excessive force; or the dealing of lethal blows after the deceased has been felled.” State v. Buchanan, 287 N.C. 408, 420-21, 215 S.E. 2d 80, 87-88 (1975).
In our case, premeditation and deliberation can be inferred from (1) the lack of any evidence to indicate, provocation on *352the part of the deceased; (2) the statements of the defendant made shortly after the killing giving the reason for the murder, to wit, the deceased was running around with one or more men; and (3) the use of grossly excessive force by the apparent firing of the entire load of fourteen cartridges from a semiautomatic rifle, with four of the bullets striking the deceased in the back. The defendant has failed to show any merit in these assignments of error and they are overruled.
[3] The defendant assigns as error the charge of the court to the jury that reasonable doubt was “not a doubt suggested by the ingenuity of counsel or your own ingenuity not legitimately warranted by the testimony.” It is the law that a trial judge is not required to define “reasonable doubt” without a request to do so, but if he does undertake to define it, the definition should be in substantial accord with the definitions of this Court. State v. Hammonds, 241 N.C. 226, 232, 85 S.E. 2d 133, 138 (1954) ; State v. Steele, 190 N.C. 506, 512, 130 S.E. 308, 312 (1925). The charge given was suggested by our Court in Steele and approved by our Court in Hammonds. The charge given as to reasonable doubt was correct and conforms to our requirements. This assignment of error is without merit and is overruled.
[4] The defendant next assigns as error the court’s instruction to the jury to think about the evidence and arguments of counsel overnight before the court gave.its charge. The judge stated that it was the usual custom to keep a jury housed overnight in a case of this type, but that the court would allow them to go home with the following instruction:
“First is that you will not discuss the case with anyone in the interest of fairness. Don’t talk about it with your wife, husband, friend, or family at all. Just don’t mention it overnight. Think about the evidence and the arguments, but do not discuss it. Do not receive any information about the case in any way, Members of the Jury, that is, now, by radio, or by newspaper, or from any person by way of telephone. Walk away from it or do not listen to it or do not read it. Don’t receive any information about it.
“Again, Members of the Jury, in the interest of fairness, don’t do anything overnight, Ladies and Gentlemen of the Jury, which would in any way cast any detrimental reflection upon your high and important position as a *353fair and impartial juror in the trial of this case that is now under consideration.”
The instruction as given was completely fair and this assignment of error is totally without merit. State v. Dalton, 206 N.C. 507, 174 S.E. 422 (1934).
[5] Counsel for the defendant next contends that the court erred in telling the jury to take a ten minute break after the charge before going to the jury room. At this stage, the trial judge had every reason to believe that the deliberations of the jury could be long and tedious. Certainly there was nothing wrong with this act of courtesy by the trial judge. This assignment of error is totally without merit.
[6] Finally, the defendant contends the court erred in denying his motion to set aside the verdict as contrary to the weight of the evidence. If the motion had been based on the insufficiency of the evidence, the question of law would be the same as that raised by a motion for nonsuit. But here the motion is for the alleged reason that it is “contrary to the weight of the evidence.” Under this motion the trial court is “ [V] ested with the discretionary authority to set aside a verdict and order a new trial whenever in his opinion the verdict is contrary to the greater weight of the credible testimony.” Roberts v. Hill, 240 N.C. 373, 380, 82 S.E. 2d 373, 380 (1954). The decision of the court involves the exercise of its discretion. This is a question of law and not reviewable. Roberts v. Hill, supra. This assignment of error is overruled.
Examination of the entire record discloses that the defendant received a fair trial, free from prejudicial error. The verdict and judgment must therefore be upheld.
No error.