A mass shooting Sunday night left 6 dead at a mosque in Quebec City. Thousands joined Canadian Prime Minister Justin Trudeau for a vigil to remember and honor the victims. Trudeau said the massacre would not stop Canada from opening its borders to refugees & immigrants. A 27-year old college student from Quebec, who posted xenophobic and anti-immigrant rants on social media, has been charged with the murders. Police say it appears, he acted alone.