With Brody slinging threats the whole time, who else expected to see ...
.. her shot dead at the end in cold blood. I have the distinct belief those people would not have any compunction to give a double tap to her head at point blank and do the same to her FBI colleagues. What was there to stop them. They did not exist. The building did not exist. Nobody knew where Brody was or had been. I was silently urging her to shut up and seriously believed her to be signing her death warrant.
When you have a Martyr of Islam holding a gun there is a definite chance he will turn it on himself I would think. Why did nobody shoot at his hand holding the gun? There was about 10 guns aimed at him for a minute before he used the one he had.