Josiah Thompson on how to think about November 22

Josiah Thompson, known to friends as Tink, is the JFK researcher emeritus. As a philosophy graduate student in 1966, he was the first person (outside the CIA) to make a serious forensic analysis of Abraham Zapruder's film of the assassination of President Kennedy. As a private investigator, he had a fascinating 30 year career.

Now Thompson is back with a…