The suspect is believed to be white, bald and in his 40s with a tattoo on his neck.
http://abcnews.go.com/US/search-gunman-arizona-shooting-incident/story?id=29730330
Gang member? MS13?
Since some of the shootings were at a tattoo parlor then maybe a dissatisfied customer?
One of our own crazies!
He has tats all over his face and neck