but the sex offender we met at iowa's anamosa state penitentiary has a very different existence. larry morgan spends nearly every hour of every day inside a small protective custody cell where he never sees the sun. >> what happened is they accused me of killing a little girl back in 1994. and next thing i know i'm in prison and then there's people talking about a contract supposed to be out on me. >> morgan was convicted of kidnapping, raping and murdering a 9-year-old girl. he is serving life without the possibility of parole. >> there's been a lot of threats against me, and it was a high-profile crime at the time. everybody in the system knew about it and, of course, they're all trying to stand up and be a righteous convict. and it's like oh, well, i only rob banks. or i only do drugs. i only sell crack to kids. but this guy, he killed one, so now we're going to go and we're going to kill him. >> protective custody inmates like morgan are locked in their cells 23 hours a day. to keep them from other inmates. >> at first it's claustrophobic being in a little cell 23 hours a day