A Nichols Hills doctor with mental issues was charged Wednesday with first-degree murder in his son’s stabbing death. Stephen Paul Wolf, 51, also was charged with assault and battery with a deadly weapon. Prosecutors said he stabbed his wife, too. Defense attorney Mack Martin declined comment again Wednesday. Oklahoma County District Attorney David Prater said he will listen to medical experts if Wolf uses an insanity defense. "This is a tragic case from all sides,” Prater said Wednesday. "If the insanity defense is advanced, we obviously will rely heavily on our medical experts to determine — after evaluating Mr. Wolf — what his true state of mind was at the moment the crime occurred.” Under Oklahoma law, a defendant is considered insane if he did not know right from wrong at the time of the crime. An insanity defense rarely succeeds at trial, but prosecutors and defense attorneys have agreed in some cases that defendants are insane. Defendants found not guilty by reason of insanity are sent to a state mental hospital for treatment. Wolf was arrested Nov. 16 after a police officer found him straddling his son in the kitchen of their home, according to a police affidavit. His son, Tommy, 9, died from multiple stab wounds. His wife, Mary Wolf, suffered cuts to her hands and face. He repeatedly told the police, "He’s got the devil in him and you know it,” according to the affidavit. Wolf has had mental issues for years, according to records involving his medical license. His troubles began during his first year in medical school when he was hospitalized for major depression, records state.
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