Charanjit Singh Sujjon was playing soccer when he heard the gunshots. At first Sujjon, 50, thought someone was setting off firecrackers next to Kabaddi Park, a green space in Surrey, British Columbia, just outside Vancouver. It was June 18—Father’s Day—and the park was busy into the evening, mostly with members of Surrey’s huge South Asian community. Then Sujjon saw two men running away from the Guru Nanak Sikh Gurdwara, a nearby Sikh temple. Sujjon saw they wore black hooded sweaters despite the late-spring heat and had their hands in their front pockets, as though they were concealing something. Both had covered their faces with masks or bandannas and kept looking back as they ran.