Investigators are continuing to piece together one of Canada's deadliest mass killings. An RCMP officer and an elementary school teacher are among the dead. Officials say the alleged shooter, identified as 51-year-old Gabriel Wortman, was also killed after police intercepted him at a gas station in Enfield, N.S. Residents in the small community of Portapique, N.S., say they knew Wortman. (The Canadian Press)