Last week, police in Peel, Ontario charged a man with aiding or counselling suicide, after they allege he preyed upon people in distress online and sold them sodium nitrite intended to be used for suicide.The charges relate to two Canadian deaths, but reporting in other countries has linked at least seven deaths to the substance—which police claim Kenneth Law sold online and encouraged victims to use. What do we know so far about what happened? How common is suicide soliciting online? And what will we learn as the case continues?GUEST: Lucas Casaletto, reporter, CityNews Toronto