Even for a highly trained sniper shooting through heavy plate glass like a shop window is not a straightforward shot. When the person you are shooting at may have a bomb vest with a dead man switch trigger and is surrounded by a dozen innocent people, it's not something you do.
You were watching - did you notice the big shield the police were standing behind. That was because of the risk of explosives. It wasn't for show.
Two dead is bad. But it's a lot better than ten or more dead.
I did! It made quite a contrast with the police hunkered down behind there while the little fruity waiter guy came scampering by. I swear, somebody could have just walked in there and popped that guy. Right then.
To continue, they knew very well there were no explosives in there. It was an abstract threat without substance at that time. But DOCTRINE rules. It's all part of the death of common sense.