Everybody will have their differing opinions on the follow-up shots to the perp, but in my view, the STUPIDEST thing he did was running outside with bullets flying in the general direction of somebody that had already left the scene and was running away from him. Reckless vigilante-ism if you ask me.
I agree. He was wrong, but I have been in that position and would say that his mind may have not been thinking straight.