>> at the brushy mountain correctional complex in tennessee, we met an inmate who knows something about serving hard time. brian lautenschlager is serving a 90-year sentence for armed robbery and attempted murder. >> i've been in here so long. sometimes i feel like i've been born here. >> how long have you been here? >> in prison, altogether, 18 years. come in when i was 18, come out when i was 24, back when i was 25, now back, i'm 36, going on 37. >> along with working out, there's one other way he copes. ♪ i was 18 years old when they sent me to prison ♪ ♪ far away from my home in east tennessee ♪