Lifton's radical new take on the JFK assassination caused quite a stir when it was first published in 1981. The subsequent video release bolstered the book substantially.
From it's earliest days, 'Best Evidence' had a mixed reception - even among the die hard conspiracy buffs. Some of them found it difficult to accept Lifton's basic contention of posthumous wound alteration.
This book chronicles the author's odyssey beginning with his initial 'realisation' that JFK's back-and-to-the-left reaction to the fatal shot was proof of a frontal attack.
His academic background seemed to offer much credibility to his assertions. Constant references to 'Newton's Law Of Motion' and `The Transfer Of Momentum' were just the sort of language that the conspiracy community wanted to hear. (Newton's work says much about the physical world, of course, but nothing about wound ballistics. i.e. supersonic, piercing projectiles striking human tissue).
Lifton also produced witnesses to support his theory.
Paul O' Connor's claim that JFK's body arrived at Bethesda in a "..grey body-bag inside a cheap shipping- casket.." was clearly at odds with Aubrey Rike's recollection of how the president's remains left Dallas.
But then, as the author picks up steam, things really seem to come off the rails.
Jerrol Custer recounts a series of 'events' that are simply not believable. He sees the casket arrive AFTER he's already taken x-rays of JFK and, he claims, he was able to place his doubled-up fists into the huge defect at the rear of Kennedy's skull! "There was no brain", he told Lifton. (He claimed much else besides but chose not to mention any of it to the HSCA 1978).
By the end of the book the reader is faced with a choice: Either Lifton has written the most tellingly insightful book on the JFK assassination, or. he's as mad as a box of frogs.