energy lives here. >>> roy slagle earned a reputation for his numerous cell extractions at colorado state penitentiaryent cell extractions of his own, jonathan hall has just gotten word he will be transferred there as well. it's the most secure state prison in colorado. a place where all the inmates are locked up in their cells 23 hours per day. >> i'm just trying to stay mentally prepared to sit back and be locked down for the next two, three years. >> several days after a visit with his family, hall has received a letter from his mother. small comfort for what lies ahead. >> jonathan, you're not a bad person. you just have gotten confused. life threw too many curveballs at you. just keep god in your heart and things will get better. they will. maybe not the way you want, but better. i'm so glad i had you. you're very important in my life. it's good to hear [ bleep ] like this. this remind me that people out there care. they're still thinking about me. they're still just keeping me in their heart. i don't know if this prison's >> while hall faces many more years in prison, ray slagle only has eight w

the day we arrived at colorado state penitentiary, a super max prison at the base of the rocky mountains, we found a sterile austere environment. steel doors behind which inmates are locked up 23 hours a day. but despite his surroundings, inmate shawn shields was in high spirits. when he sat down with us, he was eager to help our producer get the interview under way. >> quiet on the set, you boneheads. >> it's a prison, you know. >> all right. let's roll tape. >> then he calmly told us how he got 16 years added to his original sentence of 12 for robbery. >> me and another inmate had an altercation, i manipulated the door so that it wouldn't latch completely. and when he came out to walk, i came down after him and proceeded to stab him. >> why? was it because you guys weren't getting along. >> it was just a verbal altercation. >> does that happen a lot in here? >> um, there is a lot of verbal altercations between people. you've got to understand, there's 16 men living together behind closed doors with stress, animosity towards one another in some cases. and it's not always a pleasant plac

the day we arrived at colorado state penitentiary, a super max prison at the base of the rocky mountains found a sterile austere environment. steel doors behind which inmates are locked up 23 hours a day. but despite his surroundings, inmate shawn shields was in high spirits.