A number of sleepwalkers have been acquitted of murder charges. Sixteen years ago, the Canadian Supreme Court upheld the acquittal of a man who had said he was sleepwalking when he drove 14 miles, stabbed his mother-in-law to death and seriously injured his father-in-law. In Arizona, it was claimed that a man was sleepwalking when he stabbed his wife 26 times, and he was acquitted on the ground he was temporarily insane.