Both the prosecution and the defense argued Li can't be held responsible because he had schizophrenia and believed God wanted him to kill McLean because the young man was evil. "He did not appreciate the actions he committed were morally wrong," Scurfield said.

Li will be institutionalized without a criminal record and reassessed every year by a mental health review board to determine if he is fit for release.

Police said McLean's body parts were found throughout the bus in plastic bags, and the victim's ear, nose and tongue were found in Li's pocket. A psychiatrist called by the prosecution testified that Li cut up McLean's body because he believed that he would come back to life and take revenge.