. >> some challenges like those presented by joe leija can take longer to resolve than others. >> he doesn't come across as a dangerous guy, he's respectful to the officers, but it's not one of those guys i would trust. he's definitely a dangerous individual, especially on the street, and within his gang world. you wouldn't want to turn your back on him. >> he was recently confined to the segregation unit where he's locked in a single man cell 23 hours per day. jail surveillance footage shows why. >> he is down here and his accomplice is kind of walking around in the day room there. there was some form of disrespect the night before, and they were kind of waiting for this inmate to come out of his cell. and as soon as he comes out, the two of them begin an assault on him. one inmate throws a couple punches, he is definitely the aggressor. an officer doing a block check at the time uses his oc spray to get them to separate and orders them to get on the ground. >> he is an admitted gang member and has proven to be more violent on the streets. originally charged with first degree murder

. >> a different sort of drama now plays out for joe leija. >> i'm going to get sentenced today.to apologize to the victim's family, but i'm going to. i think it looks better, shows i am sorry. >> move it, everybody has to fit in there. >> make me realize the damage i have done to this family. i have a lot of regrets. this is one of the biggest ones i have is to kill somebody, you know. i'm going to have a lot of family in the courtroom. my parents are going to be there, my mom, my dad. my aunt, my uncle, my brothers and sisters. it makes it way easier for me. >> as the proceedings get under way, the victim's mother takes the podium and reads her statement to the court. >> i still don't understand why you had to pump six bullets into my son. it just goes to show what a cold-blooded killer you really are. it seems to me taking a life came way too easy for you. now i wonder how many other lives you may have taken with no remorse. you didn't just shoot a person, you shot my son. you took a very big part of our lives away and that piece of the puzzle will always be missing. i hope yo