<p>John Katzenbach (1950) is an American author and former journalist. He wrote his first book <i>In the Heat of the Summer</i> in 1982 and was nominated for an Edgar Award for Best First Novel. The book was later adapted into the movie <i>The Mean Season</i>. Two of his subsequent novels <i>Just Cause</i> and <i>Hart's War</i> were also adapted into movies.</p>