William J. Coughlin is an American author best known for his legal thriller novels. He was born on May 2, 1929, in Detroit, Michigan, and passed away on October 1, 1992. Coughlin practiced law for years before turning to writing, which gave him valuable insight and knowledge of the legal system.

Coughlin's novels often feature complex courtroom dramas, intricate legal maneuvers, and suspenseful plot twists. He is particularly renowned for his character, Charley Sloan, a flawed yet brilliant criminal defense attorney who is a recurring protagonist in several of his novels.

Some of Coughlin's most popular works include "Shadow of a Doubt," "Proof of Intent," "Jury Town," and "In Doubt." His writing style is often praised for its detailed legal accuracy, gripping storytelling, and well-developed characters. Coughlin's novels have garnered a dedicated fan base and critical acclaim over the years.

Though he passed away relatively early in his career, William J. Coughlin left behind a significant body of work that continues to captivate readers who enjoy legal thrillers.