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Kenneth Parks, a 23-year-old Toronto man with a wife and infant daughter, was suffering from severe insomnia caused by joblessness and gambling debts. Early in the morning of May 23, 1987 he arose, got in his car and drove 23 kilometers to his in-laws' home. He stabbed to death his mother-in-law, whom he loved and who had once referred to him as "a gentle giant." Parks also assaulted his father in law, who survived the attack. He then drove to the police and said "I think I have killed some people... my hands," only then realizing he had severely cut his own hands. Under police arrest he was taken to the hospital where he underwent repair of several flexor tendons of both hands.

Because he could not remember anything about the murder and assault, had no motive for the crime whatsoever, and did have a history of sleepwalking, his team of defense experts (psychiatrists, a psychologist, a neurologist and a sleep specialist) concluded Ken Parks was 'asleep' when he committed the crime, and therefore unaware of his actions

Indeed.