Bertil Fox, Murder, 1997
We’re going to consider competitive bodybuilding a sport here, so save your complaints until the end. Bertil Fox was a champion of the muscular arts, achieving a density that few bodybuilders have been able to. He won Junior Mr. Britain at the age of 18 and went on to win dozens of other titles in England before relocating to Los Angeles to compete.
After he left competition, he moved back to his native St. Kitts to open a gym. But one of the things that makes bodybuilders so huge is human growth hormone, which can have serious effects on the brain. One day, Fox walked into the dress store that his mother-in-law owned.
The two got into an argument and Fox pulled out a pistol and murdered both his wife and her mother. He originally tried to claim it was an accident but was sentenced to death by hanging. In 2002, his sentence was commuted to life in prison.