A rebuttal of "Facts and Fiction in the Kennedy Assassination" by Massimo Polidoro and the Committee for Skeptical Inquiry 

"However, cases are often made more difficult to solve when facts get confused with imagined realities and unfounded conclusions.  Eyewitness testimonies and self-styled experts, even in good faith, can alter details and hid important clues that-if untouched-could lead to radically different conclusions." (Massimo Polidoro) 
After a reasonable introduction paragraph, what follows is a ham-handed swipe at all sources Polidoro deems unverified due to the implications many present. He offers no actual evidence or repeated documented instances of these allegations, but states it as if the reader should give it regard. Notice that he does not address the many official flaws and clear acts of deception in the case; he instead blames inconsistencies on all the non-officials involved...