they said, man, took too long, knighten. they despise him, too. nobody, cop, nobody likes a chester. >> if the average sex offender must contend with inmates like knighten, it can be even worse for those whose crimes made headlines. >> periodically over these 5 1/2 years, you know, i've turned the television set on to see my face, you know, on the television set. that's pretty uncomfortable. >> we met edward mckowen in tennessee at the river bend institution. >> i was ordained a catholic priest at the diocese of nashville in january of 1970. i served as an active priest for 19 years at which time i was in effect mustered out of the priesthood because of my behavior. i am, in effect, a child molester. >> according to police investigators, mckowen admitted to molesting 22 boys, both during and after his time as a priest. the statute of limitations had

. >> the inmate debriefing is none other than notoriously dangerous gang member christian knighten. >alidated as what? >> mexican mafia member. >> can you tell us why you've chose to leave that gang life behind you and debrief? >> i found myself in a position to go ahead and get a cellie after nine years. and go ahead and have basically a normal program. i was put in the position to either i kill this individual or i come this way. >> according to christian, the mexican mafia wanted him to murder his new cellie, but the igi informed our producers that christian approached them, fearing his new cellie was going to kill him. either way, dropping out is something christian never thought he would do. >> the fact that it even entered my mind, i was defeated. i knew then -- because that was never an option. it was either kill or die. that was it. you know what? the first thing that popped in my head, i'm going to go ahead and do this dude. and after sitting there rotting by myself, it finally popped in my head that, third, but unthinkable, you know, come this way as far as do the debriefing