they have a special jail, i think in chillicothe... or maybe circleville... anyway, its a special jail for pedos. i dont know if every one of em goes there, but a lot do. they cant be in general population for the exact reason you mentioned. child rapists are probably the lowest rung in prison heirarchy. car theives are near the top for some reason...
but yea, the pedos, hey get fucked up and bad by the other inmates.
sorry to hear about your sister, but thank god they caught the prick.