Video from a store owner in Philadelphia shows a Marine ending a hostile armed robbery attempt with only his hands.
A young guy trying to be a badass with a gun, found out that some people are not afraid of guns. He entered a store, gun prominently raised to shoot, likely to commit an armed robbery. Within half a second, a US Marine engaged and defeated the bad guy, who never saw it coming.
The bad guy is to the left of the Marine. The Marine uses his left hand to raise and deflect the weapon as he hauls off and cold-cocks the bad guy with a right hook to the face.
It all happens so fast, you have to watch the video several times to appreciate how well it was done.
Hoorah! Marine Corps!