GeekGuy: Firing shots like they did while innocent bystanders are near, is not very professional. I do not have a problem with that person needing to be shot but doing it while people are around him is not a very good judgement call on there part.
Once again in this thread someone has demonstrated little knowledge of how things work in the real world.
Ask yourself this; If someone had already shot at you and is holding a firearm how long does it take for them to lift it up and shoot yourself or someone else? Probably less than a second.
It's fine sitting at your computer and saying they should have done this or that but the reality is that in these situations you have to act almost instantly.
No doubt if the AOS had stood there and done nothing and the offender had shot someone else you would be posting on here asking why they hadn't acted.....