The parents of yet another murdered Edmonton prostitute made a tearful plea Friday for the public to help the police catch her daughter's killer.

But they also reminded people their daughter was loved.

"She will not be forgotten and we will miss her dearly," Myrtle Gauld said of her daughter Charlene.

The burned remains of Charlene were found recently near Camrose. She was just shy of her 21st birthday.

"We are not ashamed of our daughter and while we didn't support her lifestyle, we have always supported her," Myrtle said.

But no sooner had the parents talked of their loss than the RCMP announced that yet another sex trade worker, Maggie Burke, is missing.

Burke, 21, who was last seen in December, is suspected to have met foul play.

Over the past 16 years, at least 12 prostitutes have been slain around Edmonton. The RCMP refers to the victims as having lived "high-risk lifestyles."

In Gauld's case, the RCMP say they have nothing so far to link her death with those other cases. But her name has still been added to a list of 72 missing and murdered men and women in an ongoing police investigation called Project Kare.

With concern the toll could grow, the police repeated their plea for help from the public.

"We don't know what large or small piece of information may be out there that could bring about the critical break in any one of these unsolved cases," said RCMP Cpl. Wayne Oakes.

For example, Charlene's body was found down a dirt road. The gate to that road had been left open for several weeks. Police would like to know who might have travelled down the road.

In the other cases, police suspect a serial killer may be behind some of the slayings, but it's just a theory.

Meanwhile, some are agitating for even more action.

There was a rally held Thursday in Edmonton by about 100 people to raise awareness about the missing prostitutes.

"I think it's time we do something to tell people, now, that we're not going to sit down and take this lightly,'' ex-prostitute Sonia Friesen, 32, told The Canadian Press.

"These girls are beautiful people. Nobody deserves to get hit, beat, let alone killed.''

In B.C., Marilyn Kraft urged the demonstrators to keep up the pressure.

The DNA of her step-daughter Cindy Felix was found on the pig farm of William Pickton in Port Coquitlam, B.C.

Pickton faces 15 charges of first-degree murder.

But for years, the investigation into the disappearance of women from the gritty, drug-infested downtown eastside of Vancouver went nowhere.

"I would tell them not to give up, to keep after the police to find out who's doing these terrible things to their loved ones," she said.

With a report from CTV's Sarah Galashan and files from The Canadian Press