John F. Kennedy, Jr.: The FBI Files contains the actual original and declassified criminal investigation files related to John F. Kennedy, Jr. Although John F. Kennedy, Jr. was not the subject of an FBI case, investigations were conducted when the FBI learned of alleged plots to kidnap the former President's son in 1985 and 1995. These F.B.I. files also contain a reference to laboratory examinations in 1994 to determine the true writer of a threatening letter received by a United States Senator. The letter was written by an unknown person and signed, "John F. Kennedy, Jr." This publication is being published and made available now for the first time in a paperback book edition for those interested in the history of the life of John F. Kennedy, Jr.