He wasn't shot twice :P
I've seen the season 3 finale a couple of times. Each time I watched it, I wondered how the *beep* people saw him getting shot in the head twice.
He was shot once. They showed the same shot of him getting shot twice. Once from the front, and once from the back. I know it shouldn't make much of a difference, since he's dead anyway, but just thought I'd say something.