small steel box, to be honest. that's what it was, a floating steel box. >> that's where food deprivation would come in. we would hold back food, and they would know if they were in the module they would get their food. if they're hungry enough they're going to go in there. >> that would be winter 5:00 at night until 7:00 in the morning. >> when you let them out you saw 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 -- 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 trigger to kill. >> an employee is dead after an