Gayle Nix Jackson to talk about her grandfather's JFK film

Orville Nix was a bystander with a movie camera in Dealey Plaza on November 22, 1963. He gave his film of JFK's assassination to the FBI. The Bureau later gave him back a second-generation copy of the film. The original is still missing.

Nix's grandaughter, author Gayle Nix Jackson, will speak about her quest to recover the original Nix film--and what it…