Police said the suspect, 25-year-old Alek Minassian, was not known to them before Monday's carnage in Canada's most populous city, which also left 15 people injured.
May have been 600,000 invasions of privacy
Canadian provinces at war over future delivery of oil to Pacific countries
Myanmar needs to demonstrate it is serious about the safety and security of the Rohingya, says UK foreign secretary
Still no explanation for illnesses experienced by Canadians, Americans
The dispute pits the country's two westernmost provinces against each other as oil-rich Alberta boycotts trade with British Columbia over its opposition to the pipeline.
At least 70 civilians were killed after Assad regime forces struck targets in Douma district
Dead include Humboldt Broncos junior hockey team players
Trump wants deal-in-principle before Americas summit later this month
Special envoy recommends those responsible for violence be brought to justice
Graffiti contained obscenities about Jesus Christ
Prime Minister Trudeau ‘disappointed’ by Catholic Church stance
Judge accepts new plea after a psychiatric evaluation
6 killed, 19 wounded in January 2017 shooting rampage
The four diplomats serving at either Russia's embassy in Ottawa or its consulate in Montreal have been "identified as intelligence officers or individuals who have used their diplomatic status to undermine Canada's security or interfere in our democracy."
'It’s our responsibility to make change because nothing’s happening as of now,' says high school student Gracie Nayman
US president says duties avoidable if new trade deal signed
Bombardier avoids 300 percent tariff on plane sale to Delta
The so-called Langlands programme dates back to 1967, when the then-associate professor at Princeton University wrote a letter to renowned French mathematician Andre Weil outlining his new theory.
Exemption from US metal tariffs may depend on quickly wrapping up free-trade deal
Pressure on Trump mounts from politicians, including Republicans