I'd suggest he keeps that hand gun at hand for when they return with something bigger.
I wonder if the Police have arrested the shop keeper as they would do in the UK? I mean the poor robber must have been terrified and had is ooman right to rob taken away?
Shame a cruiser just hadn't been passing by when they exited with machete in hand. And people on this site wonder why so many "ninja's" get their come uppance in the US?