Since in this case the shooter was a retired police officer, one would hope that a law that prevented his carrying the gun in theaters would have prevented him from carrying his, and prevented him from shooting this man for doing nothing more than annoying him. Notice I wrote this response without any name-calling, you should try it sometime!
So this man did not jump out of his seat and assault the retired policeman? Is that the story you are attempting to fabricate? He was just sitting there in his seat annoying everyone around him like a dullard and the cop just jumped up and shot him; is that what you are attempting to say?