By Joseph Frankel 

October 24, 2017

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It's been 16 days since a man shot at a crowd of 22,000 people, murdered 59

and injured many more at a concert in Las Vegas. After the event, as after

other mass shootings in the U.S., a familiar cycle occurred: speculation as

to whether the shooter was mentally ill, coverage all but proving (with

exception) the shooter was not and the discussion of this trope in the

media. Now, a new study from Canada further complicates the idea that

there's any meaningful connection between severe mental illness and violent

crime.