Waterloo Regional Police went door-to-door in a north Kitchener neighbourhood Tuesday, hoping someone would have information that would help them solve the murder of Mary-Anne May.

“We are canvassing neighbours in the area for any information that they may have about any suspicious activity that they may have seen in the last few days,” police spokesperson Olaf Heinzel tells CTV News.

The body of May, 55, was discovered last Friday morning along the banks of the Grand River near Tyson Park in Kitchener’s Bridgeport neighbourhood.

The investigation initially focused on that area, but moved Tuesday to the neighbourhood around May’s apartment on Margaret Avenue, near Guelph Street.

Police say they’ve been able to trace May’s whereabouts up to late last Wednesday, but don’t know where she was after that.

A command post has been set up outside May’s apartment and will likely remain there for some time.

“It’s important to enhance our presence in that area of the community right now, for people to know that we are asking for help from the public,” says Heinzel.

Officers were also going up to individual homes in the area, asking residents if they knew May or if they saw suspicious activity in the neighbourhood.

“They asked if anything was missing from the backyard, tarps or anything in the shed,” says Kevin Marinoff, one of the people they talked to.

Search warrants have been executed at the apartment and at least one other, undisclosed location.

A post-mortem has been conducted on May's body, but police are not releasing the results of the examination.