child molesters, rapers, they're down here.ys on the bottom deck, most of them are sex offenders, you know. i don't like them. i just tolerate them. i used to beat them. i used to prey on them. >> they normally mark the sexual predators by cutting them across the face with a razor blade or a knife. and the other inmates know hey this guy is no good. they call him trash. >> we even met a pair of brothers who wouldn't hesitate to extend the convict code to their own father. >> my father was in here for -- i don't know the exact charge. but he was in here for messing with kids. and you know, i ain't cool with that. >> brad and michael love are serving time for murder at a state penitentiary in iowa. >> i was never incarcerated with him. when i found out he was incarcerated, what he did time for, what he got charged for, they asked me if there would be any problems if we were in the same prison. i told them yeah, i would probably end up killing him. i just cannot condone that. >> "lockup" has profiled plenty of inmates who spewed h