Did the shot that killed Kennedy came from the driver of the car William (Bill) Greer? Is that a pistol over his shoulder which synchronises with Kennedys head exploding. Before he shoots, Greer looks over his shoulder to make sure Governor Connelly is lying down so he gets a clear shot. If you think about it, it makes sense as the car inexplicably slowed down after the first shot. Why would the driver slow down after the President was shot - he should have sped up. It would also explain why Sec