The star of Detour, Tom Neal, was not just a noir actor but also a real life noir criminal despite a law degree from Harvard. He was a champion boxer who broke the nose of fellow actor Francois Tone and gave him a brain concussion fighting for the attention of an actress they were both dating. Later he underwent several failed marriages, the last of which ended after he shot his wife in the back of the head with a Colt .45. Although sentenced to ten years in prison for involuntary manslaughter, he served only six, and was released in 1971. He died not not much later of a heart attack. Dead at 58. Dark in film. Dark in life.