Police inspector Doug de Grood pauses with his wife Susan while making a statement to the press in Calgary, Alberta, April 17, 2014. De Grood's son, Matthew, has been found not criminally responsible ... more 
Police inspector Doug de Grood pauses with his wife Susan while making a statement to the press in Calgary, Alberta, April 17, 2014. De Grood's son, Matthew, has been found not criminally responsible for fatally stabbing five people at a Calgary house party in 2014, a judge ruled May 25, 2016, saying a mental disorder blocked the 24-year-old from knowing his actions were wrong. REUTERS/Todd Korol/Files less 
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Reuters | Photo By TODD KOROL / REUTERS
Wed, May 25, 2016 6:57 PM EDT