I’d have shot the fool. Instantly.
What an idiot.
Several years ago there was a mall shooting near us. A CCW carrier went running to the sounds of shots. When he saw the guy he pointed his pistol and shouted “Stop or I’ll shoot!” The gunman shot first, and the guy is now paralyzed.
The guy was a hero though - the gunman got scared and ran into a storage room and the cops got him.
Like I tell my kids “Don’t be talking when you should be shooting.” I’m guessing that’s a Dirty Harry line or something.