JOHN COSTELLA received his Ph.D. in theoretical particle physics from the University of Melbourne, Australia, in 1994. Between 2001 and 2003 he carried out intensive investigations of digital copies of the Zapruder film of the JFK assassination, ultimately proving that it is a highly sophisticated forgery.

Since 2012 he has worked as a software engineer and data scientist at Facebook (now Meta). His image processing research has powered all the photos on Facebook since 2013 and Instagram since 2015. John and his wife Sally are now dual citizens and live in Washington DC. His JFK work is available at and in The Great Zapruder Film Hoax (2003, ed. James H. Fetzer).

Z FILM PANEL: Examining The Zapruder Film

In 2002 John concluded that the Zapruder film is a highly sophisticated forgery. He presented my findings in Duluth, MN, in May 2003, and documented them later that year in The Great Zapruder Film Hoax. He also created a simple introduction to his work for his website, which he will go through in this presentation.