. >> david monroe, serving a 15-year to life sentence after having pled guilty to second degree murderets before. i'm from stockton. i done did it before. all of it. everything you guys say you did, everything you guys think that you done did that we ain't did, we did it. it's really just about us not scolding the kids. it's not a scared straight. but we try to give you the communication part like, look, man, this is what i did. and this is what it got me. like this is the trophy that i was trying to earn. is this what you want to earn? and most kids, they don't. do you want to come to jail at 15 years old? do you want to come to prison and have to be on the yard? stand up. let me see how tall you are. this was me. >> you was my size? >> this was me when i came to prison. they're 15 and they look at me like oh, my god, are you serious? that's usually what i get, like are you serious? 15 years old they locked you up. can they do that? >> at 15, monroe's involvement in gang violence changed his life forever. >> they say you have a gun, you carry a gun, eventually you're going to use it,