 The attack caused Prue to hit his head on a hard surface, leading to a loss of brain function. He was pronounced dead on Tuesday. According to investigators, Heard may have pre-planned the attack because he thought he was being treated unfairly by staff at the facility. The 16-year-old is now being held on a $100,000 cash bond facing counts of murder and reckless homicide. According to a statement from the Department of Corrections, Prue leaves behind a fiancé and a child.