25 and 50 yard targets not shot this day but if you want to know what distances I shoot at this is my range and the gun I have been carting around since 1972. I almost have the hang of it but don't worry, I will keep practicing till I get it down and do it right. Sorry about the flyer on the 100 yard target, it started raining and my rain spotted glasses made it a little hard to see the front sight.
I think any well trained policeman, military shooter trained to expert level with a handgun, a handgun hunter used to taking long shots in uncertain lighting conditions or a top competitive bullseye shooter would have made short work of this clown and probably wouldn't have had to shoot more than 50' to do it.
Front of the theater dressed in black, back lit by the screen assuming they didn't shut off the projector, air conditioning would have pulled the smoke from his grenades up and away from him. A couple of shots into his gas mask would have saved a lot of people, especially since he had to change guns once and had to reload a couple of times. His attention would have been on his gun not you. Anybody who has ever had to shoot while wearing a gas mask know his visibility was limited. Advantage to OC or CCW person.
Nope advantage to spree shooter, Cinemark has such concern for outlaws welfare that they prefer their paying clients to stay defenseless. After all everybody knows that law abiding gun owners are more likely to shoot themselves or family members with their gun and if faced with a bad man the bad man will take their gun away from them. Just call 911, problem fixed, they will be happy to show up and make reports on the incident.

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"When once a republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil."~~- Thomas Jefferson
Roman Catholic, Life Member of American Legion, VFW, Wisconsin Libertarian party, Wi-FORCE, WGO, NRA, JPFO, GOA, SAFand CCRKBA