[GaryL]

"And, if the head shot was from the back, why did his head not move at least somewhat to the front before moving back and left?"

It did! It did! May I respectfully suggest that you do yourself a big favor and click on the following link? It shows very clearly and indisputably that Kennedy's head did INITIALLY move "somewhat to the front before moving back and left" just as you were asking.

May I also suggest that you just stare at that bottom moving sequence for about 5 minutes and just let it sink it?

If this won't convince you, well...God bless!

http://graffiti.virgin.net/paul.seaton1/jfk/diagrams/kennedy_graphics5.htm

[DaGman]

"May I also suggest that you just stare at that bottom moving sequence for about 5 minutes and just let it sink it?"

Looked at it for a good 3 - 4 minutes. If you hear what sounds like glass shattering, pay no attention. It's just the sound of my theory falling apart.