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
Jacqueline Kennedy Onassis years, Jacqueline attended selected memorial dedications to her late husband. She also oversaw the establishment of the John F. Kennedy Presidential Library and Museum, which is the repository for official papers of the Kennedy Administration. Designed by architect I.M. Pei, it is situated next to the University of Massachusetts campus in Boston. Despite having commissioned William Manchester's authorized account of President Kennedy's death, "The Death of a President", Jacqueline was subject to significant media attention in 1966–1967 when she and Robert Kennedy tried to block the publication. They sued publishers Harper & Row in December 1966; the suit was settled