They didn't kill him, good but it sure looked like they were trying to though. The workers there should face charges of attempting murder on him cause they could've killed him. Personally, I think it's OK when store clerks and resteraunt workers defend themselves when being robbed, but, the thief ain't gonna learn his lesson if he's dead. Punching, kicking, pounding, beating, shooting out the knee caps are all a common lesson of don't f*ck with my shit, but stabbing kinda goes too far.