Donald Jeffries started researching the JFK assassination as a teenage volunteer with Mark Lane's Citizens

Committee of Inquiry in the mid 1970s. He is the author of ten best selling books, including "Hidden History,"

"Crimes and Cover-Ups in American Politics: 1776-1963," "Masking the Truth," and "American Memory Hole."

Episode 538: The Ripple Effect Podcast (Donald Jeffries | A Century of Crimes & Cover-Ups)