The one that fell to the floor and crawled out the door was the perp with the handgun. Given the angle that Williams was shooting, it could have only been the one on the floor.
If there is an affirmative action prosecutor like the one persecuting George Zimmerman in Gainseville, Williams' actions will be scrutinized.
That's exactly my point. It looks like the perp was crawling away on the ground, and Williams shot him in the butt through the open door. Regardless of whether you consider that right or wrong, it subjects Williams to unwanted scrutiny.
It really sucks when the good guys have to think about lawsuits and lawyers when bad people are threatening them with bodily harm.