[metalboy]

No, I`m just asking what is that silver thing that pops out the side of the screen. I`m ain`t claiming nothing.

[shootergrassyknoll]

When you look at that short version, you see something come out the side of the frame. Looked like the shirt collar to me but if you play the whole film it sure looks like he shoots a gun and its perfectly timed to the head shot! The angle of the driver and the position of Kennedy's head could have taken off the right, upper side of his head, at that angle the entrance and the exit could have been blown away with the skull. The head would still have gone back and to the left. As good as the magic bullet conclusion.