Canadian Prime Minister Mark Carney and the country’s main opposition leader held hands Friday as they paid tribute to the victims of one of the worst mass shootings in the country’s history at a vigil in a devastated British Columbia town. Carney and Pierre Poilievre, leader of the opposition Conservative Party, joined hands as an Indigenous leader sang a prayer outside the town hall in Tumbler Ridge. Carney and Poilievre also spoke. The Prime Minister named each of the six people killed at...