Georgi Markov in a photo taken in September 1978, the same month he died. The Bulgarian defector worked for the BBC and was killed by an unknown assassin in London using a ricin-tipped umbrella.
September 12, 2013 Georgi Markov was killed in 1978 at a bus stop in London, where an assassin wielding a ricin-tipped umbrella jabbed him in the thigh.
November 19, 2012 Lana Peters, who died last year, defected to the U.S. in 1967. The Associated Press, citing newly declassified documents, says the FBI was trying to gauge how the former Svetlana Alliluyeva's defection was affecting international relations.
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