Opinion: How artificial intelligence can predict mass shootings

Sheema Khan is the author of Of Hockey and Hijab: Reflections of a Canadian Muslim Woman. The warning signs had been there all along. An assault on a 15-year-old boy; death threats against the man's own parents; a police safety bulletin warning of his gun stash and desire to kill a cop; violent attacks against his spouse; a weapons complaint to the RCMP; fear by neighbours and relatives of his sociopathic behaviour; rampant alcoholism. As an in-depth Globe feature reported, the nation's worst mass shooter "was the kind of man who made people nervous, bragged about knowing how to dispose of bodies and built miniature coffins as a hobby." As we wait for the launch of a public inquiry, there are so many questions about the horrible incident in Nova Scotia.