what did tom clancy die from

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Clancy wrote espionage and military thrillers including 'The Hunt for Red October ,' 'Patriot Games,' 'Clear and Present Danger' and 'The Sum 
I liked Andrew Brietbart but what he did was incredibly stupid. Because of the information that Breitbart gave to Tom Clancy, he was working 
Tom Clancy, the best-selling spy fiction author behind 28 popular novels like “ The Hunt for Red October,” “The Sum of All Fears” and “Red 
Tom Clancy -- the author behind mega-hits like "The Hunt for Red October," " Patriot Ken Norton Dead -- Ex-Heavyweight Boxing Champ Dies at 70 · Cal Worthington Did Tom Bergeron's 'Stalker' Joke Cross the Line?
Tom Clancy Dies at 66; actual list of cause of death on his autopsy, the doctors did not perform an autopsy on Tom Clancy's body for 5 days.