Well done, but a extremely violent reminder.
I'm just going to give you my opinion on the game, then the game compared to the subject.
The game was beautifully put together, and matched the events almost perfectly. However it was pixalated and that brings the graphics down. The game allows you to look at it from the shooter's point of view, and I like that.
However the terror involved negatively impacted the score, it tries to make fun of it, and mocks it. It is a sensitive subject that could be avoided. I'd say it's just bad timing to release a game like this.
Please understand my thinking.