David W. Mantik is a physicist who has conducted pioneering work on the JFK autopsy X-rays with densitometry, and, conducted the most extensive studies of the Zapruder film ever undertaken. His important studies of the X-Rays, and, of the alteration of the film, appear in the books “Assassination Science” and “Murder in Dealey Plaza.” A board-certified radiation oncologist, Mantik serves as an associate professor of radiation oncology at Loma Linda University Medical School in California.
