And i'm sitting there, and this guy -- he says, "either you're gonna give me some of your food or you got to get up." and i said, "hey, if you touch my food, we're gonna have a problem." and he proceeded to touch my food. >> narrator: thompson rises from his seat. seconds later, the other inmate, keith reeves, appears to put a hand in his face, and thompson strikes back. >> i punched him in the mouth like four times, and then he tried to take another tray and pour it overtop of my head. and then i got him in a headlock, and i just choked him out. >> narrator: other inmates step in to break up ...