Because in the Zapruder film it appears (to me) that JFK was hit from both sides, frontal and rear.................
“Because in the Zapruder film it appears (to me) that JFK was hit from both sides, frontal and rear.................”
Why, because of the back-and-to-the-left snap? I suggest you look at it again. The head clearly moves forward before it moves back, and the right front is clearly what explodes, not at all the rear.