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 to invest in hotels without a guarantee from Rainier that no other competing hotel development would be permitted, but promised to build two hotels and an apartment block. Unwilling to give Onassis his guarantee, Rainier used his veto to cancel the entire hotel project, and publicly attacked SBM for their 'bad faith' on television, implicitly criticising Onassis. Rainier and Onassis remained at odds over the direction of the company for several years and in June 1966 Rainier approved a plan to create 600,000 new shares in SBM to be permanently held by the state, which reduced Onassis's stake from 52%