John Katzenbach is the New York Times bestselling author of such novels as the Edgar Award–nominated In the Heat of the Summer, which was adapted for the screen as The Mean Season; The Traveler; Day of Reckoning; Just Cause and Hart’s War, which were also made into movies; The Shadow Man, another Edgar nominee; State of Mind; The Analyst; and The Madman’s Tale.

Katzenbach has been a criminal court reporter for the Miami Herald and Miami News and a featured writer for the Herald’s Tropic magazine. He lives in Western Massachusetts.