Sergei Tretyakov (intelligence Officer)
Colonel Sergei Tretyakov (5 October 1956, Moscow, Soviet Union – 13 June 2010, Sarasota County, Florida, United States) was a Russian SVR (foreign intelligence) officer who defected to the United States in October 2000.
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... Although Tretyakov died on June 13,2010,his death was not announced until July 9,2010 ... In July 2010,Tretyakov'swife cited cardiac arrest as the probable cause of death and strongly denied the foul play speculations voiced in the media ... According to the Florida medical examiner'sreport,Tretyakov died after choking to death on a piece of meat a cancerous tumor was also found in his colon ...