>> that's where food deprivation could come in. we would hold back food and they knew if they went in the modular they would get food so if they were hungry enough they went in there. >> during the winter 5:00 at night until 7:00 in the morning. >> teeth rakes and blood. >> closing that door on him and knowing that he's locked in there for the whole night is like -- it's a stab. it's whoa. >> if that is true, it's not only inhumane and i'll tell them so but it probably led to what i think is a psychosis that he was on a hair trigger. >> an employee is dead after an encounter. >> at a canada park called sea