On November 22, 1963, Jacqueline was riding with her husband in a presidential motorcade in Dallas, Texas, when he was assassinated. Following his funeral, she and her children largely withdrew from public view. In 1968, she married Greek shipping magnate Aristotle Onassis.
https://en.wikipedia.org/wiki/Jacqueline_Kennedy_Onassis

Aristo Onassis, was a Greek[3][4] shipping magnate who amassed the world's largest privately owned shipping fleet and was one of the world's richest and most famous men.
Onassis was greatly affected by the death of his 24-year-old son, Alexander, in a plane crash in 1973, and he died two years later.
https://en.wikipedia.org/wiki/Aristotle_Onassis

Alexander Socrates Onassis died on January 23, 1973, (10 year 2 month 1 day delta) at the age of 24, from injuries sustained the previous day when his personal Piaggio P.136L-2 amphibious airplane, in which he was a passenger, crashed at Hellinikon International Airport in Athens.

All charges relating to the crash were later dropped, and McCusker was awarded $800,000 in 1978 by Olympic Airways, three years after Aristotle Onassis's death. Onassis had refused to believe that his son's death was an accident, believing it was due to the machinations of the United States Central Intelligence Agency (CIA) and the leader of the Greek military junta, Georgios Papadopoulos.
https://en.wikipedia.org/wiki/Alexander_Onassis

Georgios Papadopoulos was the head of the military coup d'état that took place in Greece on 21 April 1967, and leader of the junta that ruled the country from 1967 to 1974.
https://en.wikipedia.org/wiki/Georgios_Papadopoulos

Interesting Name though?
George Demetrios Papadopoulos