The theater has a strict no firearms allowed policy.
This brings up my question - when the mass murderer opened (and then propped opened the exit door to return), the exit door why didn't an alarm go off? Aren't all movie theaters the same - you enter and leave through the front door and the exit doors have alarms and are only used for emergencies, i.e.like fire.
So if the movie theater didn't have an alarm rigged to the exit doors, their patrons are indeed 'fish in a barrel' as this incident shows and they give the patrons no protection along w/not allowing them to protect themselves with their strict no firearm policy.