Patching over the past: Traces of Oct. 22 shooting fade

Three years after gunman Michael Zehaf-Bibeau fatally shot reservist Cpl. Nathan Cirillo as he stood guard at the National War Memorial, and then stormed Centre Block where he died in a shootout with parliament security personnel, traces of that Oct. 22 day are disappearing.
According to the Office of the Speaker, heritage experts at Public Works and Government Services Canada worked with the curator of the House of Commons following the shooting to determine the most appropriate approach for re