Mark William Hofmann (born December 7, 1954) is an American counterfeiter, forger, and convicted murderer. Widely regarded as one of the most accomplished forgers in history, Hofmann is especially noted for his creation of documents related to the history of the Latter Day Saint movement. When his schemes began to unravel, he constructed bombs to murder three people in Salt Lake City, Utah. The first two bombs killed two people on October 15, 1985. On the following day, a third bomb exploded in Hofmann's car. He was arrested for the bombings three months later, and in 1987 pleaded guilty to two counts of second-degree murder, one count of theft by deception and one count of fraud.