>> oh, it's a letter from my brother robert. hey, bro, how are you doing in here? i hope you're doing good in here. i know it sucks being in here and you never really got a chance to bond with me. >> now wolford had become pen pals with his estranged sister andrea, who was also in the jail. >> so "lockup" came and interviewed me a couple of times. they showed me your picture and i broke down. i honestly didn't know i would do that but for some reason it hit me hard when i seen your picture. >> rekindling his relationship with his sister might seem like good news. but in prison, robert had become a member of the white supremacist gang, the aryan brotherhood. and andrea was engaged to a co-defendant, sheldon hickman. >> we're family no matter what choices we make or how many times we mess up. >> a white supremacist has a sister who's engaged to a black man. in the prison world, that is not acceptable. >> did you know your brother was in the aryan brotherhood? >> no.