For example, Donahue assumed the 6.5 mm object was a genuine fragment that came from the bullet that struck the curb early in the shooting, but we now know that the object is a ghosted image that was placed over the small genuine fragment in the back of the skull.
Please excuse my ignorance but please explain what you mean by “ghosted image” in this situation. One thing I would like to mention is that JFK said “I’ve been hit”, this was before the magic bullet so I assumed that he was hit with a frag from the bullet that hit the pavement. He would not have been able to say anything after being hit with the magic bullet.
Donahue uncritically accepted the Clark Panel and the HSCA's relocation of the rear head entry wound by a whopping 4 inches, but we now know that the skull x-rays show no entry wound at the proposed higher location, and that when the HSCA showed the back-of-the-head photo to Finck, he went so far as to question how the photo had been authenticated as having been taken during the autopsy.
I don’t know that it matters if the bullet hit JFK high in the back of the head or 4 inches lower. He was leaning forward and downward. A bullet coming almost perfectly horizontal would do what it did to JFK. A frangible round of course, not a fmj bullet. The fact that the entry wound measurement was noted in the autopsy as 6 mm tells me it couldn’t have been a 6.5 mm round but a 5.65 diameter would explain an AR 15 round.
Lets sum it up: with the diameter of the hole in the back of JFK’s head, the explosive destruction of JFK’s head and direction (the physics of it, an explosion in his head), Hickey’s behavior after, the cover up by the SS, the smoke smelled in the motorcade, the witness’s that saw Hickey with the gun, the one SS Agent that thought Hickey fired off a round, what was going on in the autopsy room with Dr Ebersol and Jerrome tells you a cover up was in progress. And who is pushing the cover up and getting the body out of Dallas, the Secret Service, why?