Judge Colin Bilash scheduled a placement hearing for Luke Kang on July 15 after finding that the man was insane at the time of the crime, according to court reports.
Earlier this month, following a mistrial in the insanity phase, prosecution and defense lawyers agreed to stipulate that the court could consider reports of doctors who examined Kang after he fatally attacked his mother, Hannah Kang, and assaulted his father, Ezra Kang, on Feb. 22, 2012, at the home they all shared.
Those doctors reported that based on their evaluations, Kang was insane at the time of the crimes.
Bilash made the final decision on Kang's sanity in Fontana Superior Court -- where the case was moved -- and referred the man for a pre-sentence probation report to the county Department of Behavioral Health for a placement report, according to court records.
Kang, 28, was convicted on May 8 of first-degree murder and assault causing great bodily injury.
Since Kang pleaded not guilty by reason of insanity, the same jury came back for the second phase of the trial and heard testimony about the defendant's mental state at the time of the crimes.
After four days of deliberating, the jury said they could not agree on a verdict on Kang's sanity and Bilash declared a mistrial in the insanity phase only.
Kang was arrested on Feb. 22, 2012, after the attack on his mother inside their residence in the 11500 block of Stone Ridge Drive.
He hit her and stomped on her body, then ran to the garage and grabbed a golf club, came back inside and continued to beat his mother, authorities said.
Kang's father eventually pulled his son away from her and the two men went outside.
Sheriff's deputies found Hannah Kang, 60, suffering from severe upper body trauma. She was taken to a hospital where she was pronounced dead.
When asked why he had attacked his parents, Luke told authorities that he had Lasik eye surgery that didn't work. He blamed his parents, who he said had different shaped heads, for the surgery's failure and for creating a defective baby.