I've read no where in the past few days that he fired the last shot. What I've read was while he was down, he went for a (smoke) grenade, she told don't do it and she shot him again to stop the threat.
A story credited to an unnamed source, as I recall. I don't think Assam mentioned a thing about that in her press conference. It's becoming clear that the MSM badly misreported this in their rush to get something onto print and screen.