[Az Joe]

Wrong. The Zapruder film clearly shows Kennedy moving foward as the bullet hits him and THEN moving violently backward due to the "jet effect" of his brain flying out the front of his skull.

You have not seen the Zapruder film obviously, from a frame by frame standpoint. I have. Kennedy undeniably moves foreard just as the bullet strikes him, THEN backward.
Plus there is the fact that he does not line up correctly for a shot from the grassy knoll.