Thomas C. Hauser (born 27 February 1946 in New York City, U.S.) is an American author.He made his debut as a writer in 1978 with The Execution of Charles Horman: An American Sacrifice. Horman's wife, Joyce Horman, and is parents, Edmund and Elizabeth Horman, cooperated with Hauser on the book describing both the fate of Charles and his family's quest to uncover the truth in Chile.