. >> the suspect, michael ray stafford, is brought in for questioning. >> have a seat right there.o you want to tell me where you got the knifes from? >>> coming up -- >> oh, i'm innocent. >> investigator wheeler finds both the suspect and the victim unwilling to cooperate. >> the victim doesn't want to be labeled as a snitch. take one. directv now. stream all your entertainment! anywhere! anytime! can we lose the 'all'. there's no cbs and we don't have a ton of sports. anywhere, any... let's lose the 'anywhere, anytime' too. you can't download on-the-go, there's no dvr, yada yada yada. stream some stuff! somewhere! sometimes! you totally nailed that buddy. simple. don't let directv now limit your entertainment. only xfinity gives you more to stream to any screen. >>> when you throw 200, 300 men in close confines like that, you're going to have violence. i mean there's just no way around it. you put a dog on a short chain and taunt him long enough, he's going to bite you. you put him around 50 other dogs, they're going to fight. it's just a fact of life. >> a vicious stabbing has j

his attacker, michael ray stafford, was found guilty of the stabbing at a disciplinary hearing and received extra time in the prison segregation unit. but no criminal charges were filed against him because ellerman refused to cooperate with the investigators. we caught up with ellerman on the day he returned to general population. >> after pat recovered from his injuries and we saw him back out on the yard, again, one of the first comments he made was about his shoes. >> see the blood on my shoes? that's why i stopped fighting, because i seen blood on my shoes. >> it's indicative of prison life. you have so few personal items and you certainly don't have very many things that were brand new. these shoes were new. they were a symbol of him having some kind of success as a convict in prison and he wanted to keep them as pristine as possible, even during this horrific situation. >> is this the end of it? >> no. if i ever see him again -- i can't say nothing. of courts i can't say nothing. if i say no, i'm going to the hole. the guards ain't going to want to hear i'm going to kill this guy. i c