31 May 2021 / #news City Hall flags at half-mast in memory of 215 children whose remains were found in B.C.The flags at Ottawa City Hall will be lowered to half-mast from sunrise on Monday, May 31, to sunset on Tuesday, June 8, in memory of the 215 children whose remains were discovered on the site of a former Kamloops, B.C. residential school on May 28. This period of mourning is reflective of one hour for every child whose life was lost.