Earlier this week, a man from Mississauga, Kenneth Law, was charged with 14 counts of second-degree murder. Police allege he helped people end their lives by selling them sodium nitrite online.

Today, Globe reporters Mike Hager and Colin Freeze explain what we know about Kenneth Law, the charges against him, and how he defended himself in an interview earlier this year.

If you are having thoughts of suicide, call Crisis Service Canada at 1-833-456-4566 or visit crisisservicescanada.ca. Young people can also call Kids Help Phone at 1-800-668-6868, text 686868, or visit kidshelpphone.ca. If it is an emergency, call 911.

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