Driver stops mass murder by shooting the suspect with his own, legally carried and purchased firearm. For our resident lib who likes to claim that mass shootings have never been prevented by CCL holders.
http://www.businessinsider.com/uber...dgun-prevents-mass-shooting-in-chicago-2015-4
http://www.businessinsider.com/uber...dgun-prevents-mass-shooting-in-chicago-2015-4