John Koerner is a professor of Social Sciences at Erie Community College in Buffalo, New York. He is a published author and researcher, specializing in historical and conspiracy-related topics. Koerner has authored nine books, including Exploding the Truth: The JFK Jr. Assassination and his latest work, The Four Guns: The Stolen History of the Assassinated Presidents. His expertise has been featured on television programs such as America’s Book of Secrets and Weird or What. In addition to his academic and literary pursuits, he is the founder and operator of Paranormal Walks, a guided ghost tour company in Western New York. He resides in Buffalo, New York, with his family.