Aristotle Onassis ordered Robert Kennedy's assassination, according to play

The Greek shipping magnate was determined to marry John F Kennedy's widow, Jackie, and knew that her brother-in-law opposed the union.

He used his billions to fund a Palestinian terror organisation which ordered Kennedy's murder, according to a theory advanced in a book, Nemesis, by Peter Evans, which has provided the source material for a play which opens next month.

Aristo, starring Robert Lindsay as Onassis, is written by Martin Sherman and opens at the Chichester Theatre.

It is the story of Onassis's final years, and his relationships with a string of beautiful women, among them Kennedy and opera star Maria Callas...