An Alberta (Canada) court heard the case of Matthew De Grood, who killed five young people attending a party in 2014. Mr. De Grood claims that at the time he believed the people he killed were werewolves, and his duty was to rid the world of them. Is he criminally responsible for their deaths? Or, at the time that he committed the crimes, did he suffer from a mental defect that should absolve him from responsibility? More here on the trial from the Washington Post.
Today (May 25, 2016), the judge found Mr. De Grood not criminally responsible for the deaths (National Post).
He will now be assessed and the authorities will make a decision concerning his treatment. More here from Global News.
Matthew De Grood's statement on his acts here, from the Calgary Sun.