In addition to islamic terrorism, I would classify this as gay-on-gay crime, since Omar here is obviously a fag. Being a fag is part of moslem culture anyway.
Maybe, maybe not. We will have to wait on that angle.
I would suggest this, after a bit of pondering. The pub near where I grew up...upon closing time....would have around a hundred people still in it. If you counted, at least fifty of them would have concealed to carry weapons on them even inside the bar.
The guy might have shot the entry bouncer, and maybe two or three others....but those fifty people would have turned and fired at least five or six shots each into him. He just wouldn’t have gotten far. He’d have at least 200 rounds in him.
Yet, looking over the story so far....it does not appear that a single person in the bar had a weapon. So no one attempted to bring him down. Maybe just luck....maybe he planned it this way....but that’s the name of the game.