Shooter was completly justified in his actions. Chances are he made four shots on the man simply because, as others have said, he'd have been trained to fire until they weren't standing anymore, and that's how many it took. WIthout having seen the robbers I'm betting the robber in question was a fairly large guy, probably quite fit too considering he then managed to leave the area and die elsewhere, after already being shot four times. Ordinary people don't do that. The body usually goes into shock far before that point.
The only thing which sort of strikes me as odd is that the shooter allegedly had his weapon concealed. Why? Why would he even want it concealed? It just makes it harder to draw. Sure he was in the wrong for it, and no in the context it really doesn't mean shit, but I just don't get WHY he did it in the first place. If he'd been trained as a security officer like the report says he was then he should have known better, on more fronts than one.
tl;dr Shooter is in the right, haters are in the wrong, shooter was a fool for concealing the weapon.
The only thing which sort of strikes me as odd is that the shooter allegedly had his weapon concealed. Why? Why would he even want it concealed? It just makes it harder to draw. Sure he was in the wrong for it, and no in the context it really doesn't mean shit, but I just don't get WHY he did it in the first place. If he'd been trained as a security officer like the report says he was then he should have known better, on more fronts than one.
tl;dr Shooter is in the right, haters are in the wrong, shooter was a fool for concealing the weapon.