ROFL! Look, you can "prove" anything by making an appropriately inaccurate, hand-drawn sketch that doesn't have to match reality.
Here are the results of actual 3D reconstructions which precisely match the dimensions of the car, the occupants, the plaza, the medical photographs, each frame of the Zapruder film, and the hundreds of of still photos which were taken on that day:
Here's what that analysis shows for the so-called "magic bullet":
Nice, straight, single shot through both men when fired from the window of the Schoolbook Depository Building, thank you very much. And JFK's and Connally's reactions appear at the same time:
Interestingly, a few seconds *before* that, both appear to be turning in reaction to something, likely the sound of the first (missed) gunshot (but both act uninjured at this point):
As for the theory that the head shot came in any way from the front, the 3D analysis shows that given the possible entry/exit locations on the skull (and the possibilities are large due to amount of damage obscuring the exact place on the front of the head where the bullet passed), any shot from the front and/or right could not *possibly* have come from anywhere near the Grassy Knoll:
The Grassy Knoll is circled in yellow. The red cone is the band of angles from which a headshot could possibly have entered from the front, after skimming over the top of the windshield. Unfortunatly, this band does not intersect the ground, and sails over the Triple Underpass at a height of 13 feet over the railing. The blue band shows shots that could conceivably have come into the car from the front, missing the windshield on car's left side (i.e., passing through where the rolled-down driver's window would have been), but unfortunately for conspiracy theorists, no witness ever claimed to have heard or seen any shooting activity from that direction.
Besides, the wounds in the skull clearly indicate an entry wound from the *back*, fragments of that bullet were found on the front floor of the car and a dent in the upper windshield frame, the head rocked FORWARD briefly before it was flung backwards (either by the "jet effect", or neural spasm, or both), and it too was a direct shot from Oswald's window:
