Probably no need to shoot those two at all, unless he just needed to. I had neighbor's kids sneak in my back door when I was out and put a snake in the bedroom. Never know if they are actual thieves or just up to mischief/trespass. Looks more like these two got it because his house had been robbed a few times before. Still you need to be sure before you pull the trigger that the victim posses an actual threat. What if it had been two unarmed females, or young kids? Might as well have been from the looks of it.