By Kelly Geraldine Malone Canadian Press Saskatoon police are planning to search the city’s landfill for a woman who has been missing for more than three years. Mackenzie Lee Trottier was 22 when she last seen in December 2020. “I must stress that Mackenzie is still considered a missing person and will be until we have direct information otherwise,” Deputy Chief Cam McBride said at a news conference Friday. Police said a substantial amount of data was collected last year as part of their investigation. Devices were seized and information was extracted, leading investigators to a specific area of the landfill, said McBride. The search area is about 930 cubic metres in size and one metre deep. A multi-agency search, including specialized dogs from Calgary police and RCMP, is expected…