Sherry's description of the final hinge release of the discus thrower is apt
Harper found the fragment but the location of discovery is not connected to the scalp and skull by a chain of evidence
Mantik who dwelt on trivia placed the fragment in Murder in Dealey Plaza as below, with additional red arrows for revised lead smudge location in ctka Thomas review
http://www.ctka.net/reviews/mantik_thomas_review_pt1.html
Such placement reinforces a frontal entry consistent with the right temple/hairline hole described by Parkland doctors and mortician Thom Robinson
(Recall Malcolm Kilduff's sometimes-deleted/later-renounced finger pistol to the head at the press event)
The importance of the Harper Fragment may be deduced from it having been "LOST" while in the sole possession and control of the FBI
which did all in its (Hoover's) power to cement the a priori lone gunman in history
If we are shooting skeet on a flatbed truck moving at eleven miles an hour at three degrees down
with the mechanism mounted on a turntable to mimic the random last edge attachment to the scalp
what algorithm can predict its placement on the map
I posit it came from the right occipitoparietal and was so incriminating it had to be "LOST"
just as the back of the head had to be overlaid with a premortem photo from perhaps a beach or boat photo op
to deny the undeniable, the four score of witnesses to that wound Robert Groden recounts