An inquest into the death of a suspected Egyptian Mossad spy recorded an open verdict on Thursday at City of Westminster Coroner's Court.
Dr Ashraf Marwan, a close aide of Anwar Sadat before the then Egyptian president was assassinated, was found to have fallen from the balcony of his London home in 2007. He was 62.
Before his death he had been named by several sources both as a Mossad spy and as a double agent for Egypt. It was alleged in 2002 that Dr Marwan had alerted Israel of Egypt and Syria's plans to attack on Yom Kippur of 1973.
Coroner Dr William Dolman said there was "absolutely no evidence'' to support the claims he was murdered.
However, his wife, Mona, daughter of the former Egyptian President Gamal Abdel Nasser, said she still believes her husband was murdered.
From outside the court, she said: "The truth will come out. How can he fall? Never. He was pushed."