In May of 1981, in the parking lot of Southern Hills Country Club in Tulsa, Oklahoma, a man named Johnny Martorano killed his 19th victim. His target was the millionaire businessman Roger Wheeler, owner of a company called Telex that employed 5,000 people in Tulsa alone. Wheeler had been successful his whole life, but when he delved into a mob-connected business, he didn't realize in time that the men he became involved with were more dangerous than the average business rival. A network of corrupt FBI agents and the infamous Winter Hill Gang, including their leader Whitey Bulger, got nervous when Wheeler asked too many questions, and set in motion a crime whose effects are still felt today—and it all happened on one of the most renowned golf courses in America.