lesse...JFK gets hit from behind (Likely, not definitely Oswald) his body goes forward, then gets hit from the front and his head explodes going backward. Who shot from the front? Was that investigated or covered up?
I don't believe the Oswald story. Having said that, I think that this idea is part of the problem that confuses so many people and leads to so many variations of the theories. More specifically what I mean is too much Hollywood and not enough real experience. In a target that is penetrated through there is no or very little ejection at the point of entry, just a hole. On a living target of course there is going to be some bleeding around the entry but the energy drives the explosion out the exit hole. For anything significant to have shot out of the entrance hole then Kennedys head would have to have been made of concrete or be so thick that there was no exit forcing the energy back out the only path available.
In other words, since we assume it was made of normal material and appeared to be of a normal size, the explosion is proof that it didn't come from the front unless the whole thing was a Hollywood hoax.
That must have been Arlen Spectre's "magic bullet" that did that.