i didn't know robert was in aryan brotherhood at all. i mean, everybody has their own beliefs.inate on him for it. he grew up differently than i did. >> i'm going to have hard decision to make when i get down there. >> down where? >> down in prison. whether i'm going to have to stop being aryan or throw my family to the side. >> why do you have to stop being an aryan? >> because we're not allowed to have black in our family. if she's dating black then they ain't going to allow it. >> robert was now facing a big dilemma, but there was this bond, this familial bond, that was very present and very important to him. >> and later, robert did reach a decision. he wrote back to andrea to let her know what it was. >> i have to be what i am and do what i got to do for my family, i will. it's a hard decision to make but i'm going to do what's right for me. >> you willing to give up aryan brotherhood for your sister? >> yes. >> what's that mean for you though? >> i look at it like this. my family will be here more for me than they will. >> since inmate mail takes several days to process,

. >> i was involved with the aryan brotherhood back in 1984 when i was at folsom prison. you know, we had some work that needed to be tended to. so i put in some work, stabbed an individual. he needed to be taken out. >> walter "big foot" farmer's involvement in the white supremacist gang, the aryan brotherhood, eventually landed him in the pelican bay shu. but that didn't end his loyalty to his gang. >> of course, you have to earn your bone, which basically means you have to earn your blood in, blood out. you know, and i got my assignment and went after that. >> and what was the assignment? >> it was to take out an individual that was on the hit list for the aryan brotherhood. >> and who was that person, and what did it involve? was he a rival gang or -- >> no, he was a white guy. he wasn't an asset to us as a gang or he wasn't an asset to his own race. and he was just a headache. >> most shu inmates are single-celled. but due to overcrowding, that's not always possible. a circumstance farmer used to his advantage. >> i moved in with the guy to take him out. >> and when

against blacks in the south by white supremacist groups such as the ku klux klan and also the aryan brotherhood groups. they go to start the investigation right now. they don't know if it's suicide or if somebody else had another reason to kill him. he made enemies in prison, en enemies since out of prison -- you know, all of those facts will have to be investigated bu but the appearance of it is enough to get the fbi involved in it right away. >> tom, the fact his hands were not tied behind his back, he had a skull cap on his head. obviously, law enforcement would look for some signs of a struggle. any indications of depression or any indications that he wanted to take his life or also indications of how the rope was tied, i suppose, and how he ended up in that tree and anything around that area? >> right. they'll need the full results of the autopsy once that's finished and again, interview all of the family members and everybody else that knew him to see if there's some other indications of trouble in his life that may have caused him to want to take his own life or may have caused somebody

the other white supremacist, neo-nazi type groups that have sprung up in the last decade, from aryan brotherhood brotherhood, and there's a variety of those groups and they're still out there alive and well and strong and that's why they're investigating this to try to eliminate the possibility that we have domestic terrorism rising again in this country and trying to determine exactly what happened. >> all right. tom fuentes, thank you very much as we said. the former assistant director of the fbi. >>> and next this caught on tape. a black college student, his face bloody during an arrest. he called it racism. you're going to see the entire tape and judge for yourself. >>> and gunmen attack a museum. 20 tourists at least, are dead today. what's the threat to american tourists planning to go overseas for vacation this summer? our report, coming up. the real question that needs to be asked is "what is it that we can do that is impactful?" what the cloud enables is computing to empower cancer researchers. it used to take two weeks to sequence and analyze a genome; with the microsoft cloud we can a