An article from 2000. FBI Tells of 3 JFK Jr. Kidnapping Threats https://www.latimes.com/archives/la-xpm-2000-jun-20-mn-42953-story.html The U.S. government announced on July 15, 1972, the arrests of eight Greeks on various charges, including allegedly plotting to kidnap Kennedy, who was in elementary school at the time. He was to be abducted while visiting the Greek island of Skorpios, which was owned by his stepfather, Aristotle Onassis, a shipping tycoon. The FBI records were replete with fuzzy details about the two kidnapping plots. But one report concerned a letter, postmarked Aug. 26, 1994, that Sen. Joseph R. Biden Jr. (D-Del.), received from Worcester, Mass. “Dear Sen. Biden,” the letter said. “You are a traitor.” It was signed “John F. Kennedy Jr.” The handwriting was analyzed. Fingerprints were lifted from the letter. But no suspects were identified, and the case was closed at the end of 1994.