The Zapruder movie show clearly the right temple of Kennedy literaly explode. We can`t see nothing get out from the back of his head. But almost all doctors and witness of the body of JFK saw this large hole in the back of the head. His anyone can explain that? And i very surprise that nobody ever came with that question anywhere. I think it's fondamental.
This issue was identified many years ago and has been addressed in numerous books and articles. This is indeed a fundamental issue.
Yes, you are correct in saying that there is overwhelming, compelling eyewitness testimony that there was a large wound in the right-rear part of JFK's head. This testimony consists of literally dozens of accounts given independently by credible witnesses in three different locations.
You are also correct in nothing that in the extant Zapruder film, no spray is seen coming from the back of the head, only from the right-frontal part of the head, and no wound is visible on the back of the head. If you study the film with any care, especially in slow motion or with still frames, you will see there is an odd black patch on the back of JFK's head after Z313. Numerous experts who have examined the film have concluded that this patch was added to the film. Obviously, it was added to conceal the right-rear wound that was seen by dozens of witnesses, including two neurosurgeons, nurses, ER doctors, medical personnel at the autopsy, and federal agents.
One of those federal agents was Clint Hill, who climbed onto the back of the limo after the head explosion and stayed there while the limo drove to Parkland Hospital. Hill, who obviously had a prolonged, close-range view of JFK's head, said that while on the back of the limo, he saw a large wound in the right-rear part of JFK's head, and that he saw that same wound when he viewed the body later. Yet, no such wound is visible in the extant Zapruder film, because it is covered by the black patch.