Best-Selling Author Tom Clancy Dies at 66

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Celebrated author Tom Clancy died Tuesday night, his publisher just confirmed to The New York Times. He was 66 years old.

According tothe Times, Clancy died on October 1, 2013 in a hospital in Baltimore.

"He was a thrill to work with," Ivan Held, the president of Putnam Books, Clancy's publisher, said.

Pic: A Pivotal 'Jack Ryan' Moment

The best-selling author is best known for his espionage and military science books, and wrote such classics as Patriot Games, The Hunt for Red October and The Sum of All Fears, which follow the beloved fictional character Jack Ryan. Alec Baldwin, Harrison Ford and Ben Affleck have all played Ryan -- a CIA agent -- on-screen, and Star Trek's Chris Pine is the latest star to take on the iconic role in the upcoming Jack Ryan: Shadow One, scheduled to be released this Christmas.