So Rahm, What do you think about concealled carry now?

Yeah, I know. Stupid question.

Uber driver, licensed to carry gun, shoots gunman in Logan Square

In Chicago, a CCW permit holder sees a bad guy open fire into a crowd. He draws his weapon and shoots the bad guy ending a potential mass killing before it starts. The bad guy is the only person injured.

Perfect example of what a good gut with a gun can accomplish.