 A counselor killed in an attack at the Lincoln Hill School has been identified. Investigators say Corey Pru was assaulted by a 16-year-old inmate and hit his head on a concrete surface. He was rushed to a hospital where he lost brain function on Tuesday evening and died. According to investigators, the boy may have been pre-planning the attack because he thought he was being treated unfairly by staff at the facility. The boy appeared in court on Wednesday but has not been identified.