After conducting a bench trial, the trial court found Charles Fuss guilty, but mentally ill, of malice murder and armed robbery. The trial court entered judgments of conviction, and imposed a life sentence for the murder and a concurrent ten-year sentence for the armed robbery. Fuss filed a motion for new trial and, when the trial court denied that motion, he filed this appeal. 1
1. The victim was Fuss’s mother. Fuss did not deny committing the homicide and robbery, but raisеd insanity as a defense. According to the State’s evidence, Fuss, who has a history of mental illness, was angry with his mother and methodically planned to kill her. He hid an ax in his bedroom and, when his mother came to assist him with the cleaning, he asked her to look under his bed. As she complied with this request, Fuss retrieved the ax and struck a fatal blow to her head. He then cleaned the ax and returned it to its original location. After stealing money from his mother’s purse, Fuss took a taxi to a local bar. The next morning, he began hitchhiking to California. He traveled only as far as Arkansas, where he vоluntarily surrendered to police and gave incriminating statements. A psychologist called by *320 the defense testified that, in his opinion, Fuss was legally insane at the time he killed his mother and stole her money. However, the State produced its own expert who testified to the contrary opinion.
The applicable standard of review “is whether after reviewing the evidence in the light most favorable to the [S]tate, a rationаl trier of fact could have found that the defendant failed to prove by a preponderance of the evidence that he wаs insane at the time of the crime. [Cit.]”
Brown v. State,
2. Fuss asserts that it was error to admit his inculpatory custodial statements into evidence, because he was insane at the time оf his post-arrest interviews. Whether Fuss was insane when he made the statements in Arkansas is a separate issue from his insanity at the time he committed thе acts in Georgia. See
Kimbell v. State,
3. When the trial сourt asked Fuss’s psychologist whether it was possible for a person to manifest rational behavior while in a psychotic state, he responded: “Sure. Let me - I mean, that’s very possible; and let me . . . just explain how. . . .” Before the witness could elaborate, however, the prosecutor objected because the trial court had not posed the same question to the State’s expert. The trial court withdrew its questiоn, and Fuss urges that the trial court erred in doing so. The extent to which a trial court will exercise its authority to examine a witness is a discretionary matter.
Eubanks v. State,
The trial court also refused to allow Fuss himself to рose the question to the psychologist. Because the expert was a defense witness on direct examination, Fuss was required to makе a proffer in order to preserve this issue for appellate review.
Cruz-Padillo v. State, 262
Ga. 629, 631 (4) (
Moreover, before the State interposed its objection, the witness already expressed his affirmative opinion that it was possible for a person to manifest rational behavior while in a psychotic state. The State made no motion to strike this testimony, and the trial court’s ruling sustaining the State’s objection only precluded the expеrt from expounding on his opinion. Fuss suggests no reason why exclusion of the psychologist’s additional testimony in this regard was harmful error requiring the grant of а new trial. The only relevant issue was Fuss’s sanity at the time he killed his mother and took her money,
*322
and, as expected, the defense expert expressed and adhered to the opinion that, despite any appearances to the contrary, Fuss was insane at that time. Additional evidence merely explanatory of the psychologist’s opinion that Fuss was insane could not have affected the result of this bench trial. See
Hill v. Balkcom,
Judgments affirmed.
Notes
The crimes occurred on June 21, 1996. The grand jury indicted Fuss on September 6, 1996. The trial court found Fuss guilty, but mentally ill, on December 5, 1997, and, on that same day, it entered the judgments of conviction and sentences. Fuss filed his motion for new trial on January 2, 1998, and the trial court denied that motiоn on January 4, 1999. Fuss filed his notice of appeal on January 28, 1999. The case was docketed in this Court on February 23, 1999. The appeal was submitted for decision on April 19, 1999.
