John F. Kennedy Jr. assassinated in 1968, his mother took him and his sister out of the United States, saying: "If they're killing Kennedys, then my children are targets ... I want to get out of this country." The same year, she married Greek shipping tycoon Aristotle Onassis, and the family went to live on his private island of Skorpios. Kennedy is said to have considered his stepfather "a joke". In 1971, Kennedy returned to the White House with his mother and sister for the first time since the assassination. President Richard Nixon's daughters gave Kennedy a tour that included his old bedroom, and
Aristotle Onassis US government. For this reason he became a target of the US government and in 1954, the FBI investigated Onassis for fraud against the U.S. government. He was charged with violating the citizenship provision of the shipping laws which require that all ships displaying the U.S. flag be owned by U.S. citizens. Onassis entered a guilty plea and paid $7 million. Between 1950 and 1956, Onassis had success whaling off the Peruvian coast. His first expedition made a net profit of US$4.5 million. That business ended when "The Norwegian Whaling Gazette" made accusations based on sailors' testimonials, such as one