this is jack mcgarey's story. >> my name is jack mcgarey doing 16 years to life for murder.en i came to prison. i'm been in prison longer than i was out there. >> when jack mcgarey was taken he planned the ultimate betrayal, to kill his best friend. >> we hatched this plan to bring luke to the spot and we would kill him. >> we threw him off the embankment and i heard cops. i started running. i killed him, what kind of worthless scum, piece of crap am i? less than a week after the murder, mcgarey was arrested. since that day a prison cell has been the only home he's known. >> this is my cell. i would estimate it's 9 by 12 for two people. this was it right here. this is the scope of my existence. >> but with a parole hearing in less than five months, he has his sights set on freedom. >> tension in the unit. you need to report down to the counselor's office. >> i got to head off to the meeting. got to get over there at 2:00 when the meeting is at. >> to prepare himself for a chance at release, mcgarey has joined a peer therapy group. he's hoping the sessions will reveal what mo