I have not read the book, but I read summaries. I am not interested in reading a book that is based on bad data. There are books written on what a sham the autopsy was. Many of the official pictures were not even pictures of JFK's head and body. They brought in someone else's brain which was completely in tact, when every doctor who saw JFK noted a large portion of the brain was missing as also evidence in the Zapruda film and the motorcycle officers who had brain matter splattered all over their clothes. So the author acknowledges the autopsy was totally incompetent if not fraudulent, but then uses material from autopsy as if it were gospel. Bizarre logic.
The only people who had significant brain material over their clothing were Jackie and the two Dallas motorcycle cops following behind on JFK's limo on the driver's side, which is rock solid proof the head shot came from the front and to the right (in the general direction of the picket fense on the grassy knoll where dozens of witnesses heard gunfire and saw and smelled gunsmoke). The kill shot came from the grassy knoll area without a shawdow of a doubt. The crowd was stopped by a phoney Secret Service agent who was never identified and the SS denies any of their agents were in that area.
Of course doing great detective work, the FBI made sure no one took pictured and had the limo washed down to destroy any evidence. The limo was sent to Ohio and refurbished within a week. The most important crime scene in our nation's history and the smartest police agency in history just cleans it and wipes removes all the evidence of multiple gunshots coming from different directions.