He has been a student of the JFK assassination since 2000. In 2012, he co-founded the Oswald Innocence Campaign with Jim Fetzer and Larry Rivera. Centered around Oswald in the doorway, the OIC has grown to become the largest JFK research and advocacy organization in the world. In addition to his contributions to establishing that Lee Oswald in the doorway of the Texas School Book Depository as the motorcade passed by, Ralph has been at the forefront of the discoveries that the footage of Billy Lovelady standing outside the TSBD after the shooting and of Lovelady sitting at a desk in the Squad Room at the Dallas Police Department (DPD) are fabrications and that alterations were made to Wiegman, Towner, Hughes, and Bell films to conceal Oswald’s presence in the doorway. His most recent research has been on the identity of the man who shot Lee in the basement of the DPD.