Aristotle Onassis and Jackie Kennedy

The journalist who lifted the lid on the secret romance between the Greek shipping magnate and JFK's widow in the 1960s.

In the late 1960s, JFK's widow had a secret romance with the Greek shipping magnate who was then the world's richest man. Witness speaks to Nico Mastorakis, a Greek journalist who visited Onassis' yacht in disguise in order to confirm the affair.

(Photo: Jackie Kennedy with Aristotle Onassis in 1968. Credit: David Cairns/Getty Images).