marcus armstrong and jeffrey cattera know it's likely they'll never see the outside of prison again. >> january 13th, 1989, i committed my crime, was arrested the same day. it was a murder/robbery. i got life without the possibility of parole. stupid. stupid. i was a kid. did the wrong thing. you know? i've never denied my crime. i accept responsibility for what i did. although i regret what happened and -- i mean, it happened. i can't take that back. >> i'm in here for first-degree murder. i have 25 to life with an additional 6 years, so 31 altogether. i can't blame nobody but myself. me personally. my mom and dad are married. you know, i'm from the inner city, but a good part of the inner city, mostly middle-class families. >> armstrong is a former gang banger who was involved with credit card fraud and drugs. >> she was an ex-girlfriend of mine, but we still lived together at the time. what i was doing started infringing on her life and she started getting scared and she tried to stop me and didn't listen. and it's been a discrepancy now if she was going to the police to talk or n