A Canadian judge has sentenced a man accused of killing six men at a Quebec City mosque to life in prison with no chance for parole for 40 years.

Alexandre Bissonnette pleaded guilty last March to six charges of first-degree murder and six of attempted murder. More than 50 people were at the Islamic Cultural Centre in January 2017 when he began shooting during evening prayers.

Those who monitor extremist groups in Quebec described the 29-year-old French-Canadian university student as someone who took extreme nationalist positions at Laval University and on social media. He was a supporter of French far-right leader Marine Le Pen and U.S. President Donald Trump.

Quebec’s premier previously acknowledged the province has its “demons” in terms of attitudes toward Muslims.