we would hold back food and they would know if they went in the module they would get their food. so if they were hungry enough they went in there. >> during the winter, that would be 5:00 at night until 7:00 in the morning. >> when you let them out, you'd see new tooth rakes and sometimes 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. he would kill. >> an employee is dead after an encounter. >> at a canadian park called sealand of the pacific.