Since when do we give medals to law enforcement when they shoot a mentally disturbed man? Since logic is not your strong suit let's review.
You know now that the nutcase was a mentally disturbed man. Mohammad Atta was a mentally disturbed man.
At the time the air marshalls shot and killed an imminent threat, neither they not anyone other than his wife knew for a fact that he mas mentally ill.
See the difference?
Since sound reason isn't your strong suit let me try to state it more clearly.
He was percieved to be an imminent threat. I am not arguing that the Marshalls did not act appropriately. But in hindsight this was no terrorist. If they would have shot a terrorist I'd be all for giving them a medal.
Now do you see the difference?