inside the downtown or main branch of the sacramento county jail system, the eighth floor is reserved for inmates considered to be gang leaders. among them are cellmates and cousins quentin carthen and isaiah thomas. >> [ bleep ] 21-4, blood. >> [ bleep ]. >> 21-4, blood. >> [ bleep ] lying. >> they cope with the close confines of their maximum security cell by keeping it clean and following daily rituals. >> we in a outhouse with bunks in it. some bunk beds in a bathroom. if we don't clean up the dust is going to pile up, dirt going to go everywhere. it's grimy up in here. we try to keep it clean so it smell clean, so the floor clean. we going to work out, sit around. rolling up the mattress, that's a form of discipline. makes more space, pushes everything out of the way. he rolled up his, i rolled up mine, now it's like we sitting in a cadillac just riding through the day, know what i'm saying? like we sitting in the cadillac