The French-Canadian student charged in a shooting spree that killed six people at a Quebec City mosque was known in online circles as a supporter of far-right French politician Marine Le Pen and described by a former classmate as a "nerdy outcast."

Alexandre Bissonnette, 27, the sole suspect in Sunday night's shooting, was charged on Monday with six counts of first-degree murder and five counts of attempted murder with a restricted weapon. Police said he acted alone.

He was not previously known to police, but a Facebook post by the group "Welcome to Refugees- Quebec City" said Bissonnette was "unfortunately known to several activists in Quebec City for his pro-Le Pen and anti-feminist identity positions at Universite Laval and on social networks."