. >> our visit to the anamosa state penitentiary in iowa led us to a memorable pair of siblings michael whose lifelong allegiance drove them to kill. >> growing up i wanted to be him, you know. he's almost four years older than me. i see him running around drinking. breaking into stuff. doing whatever he is doing. i'm like i want to be like him. that's my big brother. that's my idol. so i kind of followed in the same footsteps. >> but as the love brothers revealed to our crew, those footsteps led down a bloody path that ended at a holiday party in the trailer park. >> christmas night, 1992, me and my brother went to a party with what we thought were friends. but they tried to rob us. take the liquor that we brought. >> they started beating me up. four of them. >> they hurt brad. i couldn't let them get away with that. they threatened his life. and i just couldn't handle that. so we left went to my trailer. i got a shotgun. my brother got a knife. machete. we went back out there and did what we did. >> i remember mike standing there he had the gun pointed at the door of the trailer. and

visit truecar.com >>> at the anamosa state penitentiary in iowa, dante bullock faces one year in the hole for allegedly assaulting another inmate with a homemade weapon, a lock in a sock. >> anything you say may and can be used against you in this hearing and can be held against you in criminal prosecution. >> our cameras were with him as he was about to plead his case in a prison discipline hearing. >> your number? >> after addressing procedural matters, administrative law judge william supeen reads the correctional officer's account of the assault. >> rights determined by the investigation that inmate bullock assaulted with a [ bleep ] weapon and sustained injuries to the head above the right eye and required stitches and broke his right hand trying to block the weapon that required a cast. i have here photos of the scene, of the incident that i will share with you. this is the victim of the assault, and injuries. also before me i have the sock with a padlock and combination lock inside. i have a statement from the staff member that located that. >> i ain't got nothing do with the

. >> john ault was warden at anamosa state penitentiary at the time we shot there. >> any time you can have inmates participate in some type of meaningful activity it makes their time easier and staff's time much easier. i would much rather have them participate in something positive than talking about how to do a better armed robbery or plotting against us or fellow staff members. >> during our shoot at indiana state prison, authorities even allowed for a weightlifting competition. >> lions now lifting at 495. >> other penitentiaries get their weight up. this is how they are doing. get your weight up. >> that's 25. 25. on deck. >> go! go! >> good lift. good lift. you've got it. >> of course, in prison, there's also a practical side to staying in shape. >> if you ever come against somebody who wants to approach you in a negative way, attack you in a fight or something, you don't want to be the person that runs out of air first. the person that runs out of air first is the person that gets hurt. >> in the combat zone you have to be combat ready. and we all know that any minute this yard