Edmonton police Const. Daniel Woodall was shot and killed while serving an arrest warrant Monday evening.

Canadians paying tribute to his sacrifice have since made #EPSstrong the top trending topic on Twitter.

Just as people did following the shooting of RCMP officers in Moncton last year, Edmontonians left their porch lights on for police.

The gesture began last June with a request by RCMP in Moncton for people in the city to leave their porch lights on at night to aid them in the search for a suspect in the shooting deaths of three Mounties.

The ATB Financial building in downtown Edmonton was lit up in blue to pay tribute to Woodall.

Above all, Canadians shared sympathy and concern for Edmonton's officers and their families in this time of mourning.