Born in 1933, William J. Caunitz used his thirty years of New York City police department experience for background in writing numerous novels depicting police corruption. In 1985, Caunitz published his first literary work, One Police Plaza, which gave readers a behind-the-scenes look at the way real cops behave. The book quickly became a New York Times bestseller. After the success of his first novel, Caunitz continued to write whodunit books focusing on the police force. From 1987 to 1993, Caunitz published Suspects, Black Sand, Exceptional Clearance, and Cleopatra Gold. His sixth and final novel, titled Pigtown, published in 1995, was considered by critics to be his best. The book chronicles the investigation of a mob hit that puts lead detective Matthew Stuart and his fellow cops in mortal danger. Caunitz, who divided his time between New York City and a little town in Mexico, died in 1996 at the age of 63.