Kenneth James Parks was a Canadian man whose case became internationally known as the “sleepwalking killer.” In May 1987, while allegedly in a state of sleepwalking, Parks drove 23 kilometers to the home of his in-laws in Scarborough, Ontario, where he attacked them with a tire iron and kitchen knife. His mother-in-law, Barbara Ann Woods, was killed, and his father-in-law, Dennis Woods, was seriously injured but survived. Parks later turned himself in to police, visibly distraught and confused. His trial ended in an acquittal after medical experts testified that he had been sleepwalking during the attack, making the case a landmark in forensic psychiatry and criminal law.