Maybe he's not saying it, but I am.
Do you think because these looters have been turned away they will just give up and decide to go straight from now on? No! they will now be really p!ssed and will go looking for revenge on the first hapless victim(s) they find. And they will find some. They will probably not only loot, but rape, maim and murder to regain their lost self-esteem and to prove to each other they weren't really scared.
He should have shot them on the spot when they threatened him. Shot them all dead. Good riddance to trash and a deadly public threat!
I heard several times where cops did not shoot a bad guy only to have later the same bad guy kill and murder someone they knew. In situations like this where some one threatens you to steal ordo you bodily harm it is time to kill them before they come back to you or someone else.