is too old for the violence he used to commit. and the prison has even released him from segregation for good behavior. slowing down can't reduce the consequences of his actions. and they're beginning to weigh a little more heavily on his mind. >> the most disturbing thing of it all is the day when it occurs to a person, in all the years that you fought, physical battles that you thought was right, good and just, is wrong. and to know that is a very hurting thing, because you look back over all the people you have hurted through your battles and it's -- it's just painful. and so, the only way to make good on it is to do something constructive and hope that it makes a difference somewhere. coming up on "lockup raw" -- >> i started singing "the battle hymn of the republic." glory, glory, hallelujah. i was wigged out completely at that time. >> two inmates kill when their minds turn on them.