Luka Magnotta is accused of murdering Concordia student Jun Lin. He's currently in a jail cell in Montreal. He's pleaded not guilty to the charges against him. CBC and Radio-Canada have been looking into the story of a group of online activists who were monitoring him on the web long before Jun Lin's murder. They even warned police about him. Madeleine Roy traveled to the United States to meet the group that was tracking Magnotta. She is a journalist for Radio-Canada's investigative program Enquete.
Download Flash Player to view this content.