Gayle Nix Jackson, granddaughter of Orville Nix, has filed a lawsuit in federal court against the United States government and the National Archives and Records Administration for allegedly losing original footage that her grandfather took of the assassination of President John F. Kennedy.

According to Courthouse News Service, Jackson claims that the House Select Committee on Assassinations took her grandfather’s copy of the footage in 1978 and that it has since gone missing.

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Through gross negligence, omission or concealment of information and record keeping, the defendants and its agencies have placed plaintiff’s property, a valuable and historical film of the JFK Assassination, in a state of limbo and to her detriment,” read Jackson’s lawsuit.

Jackson has reportedly been attempting to find the original footage since 1998 after the film’s copyright was returned to her family’s control pursuant to an agreement with United Press International, who had originally purchased the film from Nix.

Nix’s film, seen above, was taken at an angle that depicts the grassy knoll. In 1965, researcher Jones Harris claimed to have identified a second gunman in Nix’s footage, though United Press International said that analysis of an enhanced version of the footage did not support that claim.

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On her website, Gayle Nix Jackson says that the original version of the footage might be different than the reproduced versions available today. “He believed until his death on January 17th, 1972 that shots came from the ‘stockade fence’ area now called the grassy knoll. The FBI kept his film for three days and his camera for over five months. When his film was returned he felt it looked ‘different’ and when his camera was finally returned, it came back in pieces. The FBI had taken it apart to ‘study’ it,” she wrote.

Who has [the footage]? Why is it missing? What does it show?” she added.

Jackson is seeking $10 million for the lost footage, under the rationale that the federal government paid $16 million for Abraham Zapruder’s iconic footage of the assassination and that Nix’s film “was determined by the Warren Commission to be almost or nearly as important as the Zapruder film.

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