Rokos Basilisk, You're assuming again.  You assume that the group you hang out with could have handled the shooter.  Explain how you would have done that quickly.  Then you assume you were in the hotel.  Previously you assumed that a couple of thousand random people who like country and western music would all hit a target that is 500 yards away.  You can assume anything you want.  You might as well assume that the massacre never happened.