What happens when everyone is armed?

“When everyone is carrying a firearm, nobody is going to be a victim,” Arizona State Rep. Jack Harper told the Arizona Republic in the wake of the mass shooting of a congresswoman, 9 year-old girl, judge and others in his state.

Here’s a look at what happens when “everyone is carrying a firearm”:

An armed man at the Arizona shooting almost mistakenly shot another man who had already disarmed the real shooter, the Arizona Republic and other media reported.

Slate notes :

“That’s what happens when you run with a firearm to a scene of bloody havoc. In the chaos and pressure of the moment, you can shoot the wrong person. Or, by drawing your weapon, you can become the wrong person—a hero mistaken for a second gunman by another would-be hero with a gun. Bang, you’re dead. Or worse, bang bang bang bang bang: a firefight among several armed, confused, and innocent people in a crowd. It happens even among trained soldiers. Among civilians, the risk is that much greater. “