From Commonwealth War Graves, his regimental number was H200099. That was part of a block alotted to the Winnipeg Light Infantry, though it appears there was an earlier block to that unit. That might mean he was never actually on their strength, but it's an avenue to research. His service record is the best way to follow him as he moved through the Army, the previous link will take you to Library and Archives Canada with details. As a fatal casualty, there should be no problem getting his file.