now back to "lockup." due to mature subject matter, viewer discretion is advised. alaska's department of corrections is the largest provider of mental health care services in the state. at spring creek correctional center, all officers receive some training in working with the mentally ill. a mandate since the behavior of many of these inmates can be so unpredictable. one prisoner's actions even led to the death of his cellmate. we warn you, the details of his crimes are graphic. >> what's difficult for me is when you remember what some of these guys have done, and you think, i've just treated that person civilly. why would i want to do that? it's a little hard to think about that sometimes. they're still people. they still deserve to be treated with respect. >> located in a corner of the sprawling correctional complex is an isolated mod which houses