Criminals aren't getting any smarter and these two bozos made the ill decision to attempt to do an armed robbery of a gun store during business hours.
The store owner does a good job of keeping an eye on the thug while shielding the view of his firearm.
The criminal tries to go all John Woo and pulls out a second gun from his pocket with his other hand an action which is met by a bullet to the head. You can see both firearms go skittering across the floor in opposite directions as his body hits the floor.
The store owner obviously has a few hours at the range under his belt and decided not to be a victim that day.