"Crossfire is the definitive book on the subject. We couldn't have filmed JFK without it." - Screen Director Oliver Stone. Award winning journalist and New York Times best-selling author Jim Marr's has spent more than 40 years investigating the assassination of President John F. Kennedy. His book "Crossfire: The Plot That Killed Kennedy" has been translated into languages around the world and was a basis for the fabulously successful Oliver Stone film "JFK." Join Jim as he personally brings to you some of the most intriguing evidence uncovered since November, 1963. In his own personable manner, Jim presents the proof of the plot in straightforward talk aided by many photographs and documents. No one's view of the Kennedy assassination will remain the same once they view the wide range of material present in "Proof" by Jim Marr's.