Forty years after Deborah Silverman’s body was discovered on a rural property northeast of Toronto, Ontario Provincial Police are appealing to the public for information relating to her murder.

In a news release, the OPP said the 21-year-old woman was last seen in the early morning hours of Saturday, Aug. 12, 1978 in Toronto. Following an evening out socializing with coworkers, Silverman drove home to her apartment building on Bathurst Street. Her vehicle was located in the apartment building’s parking lot, but Silverman was never heard from again.

Three months later, a passerby found the young woman’s body on a rural farm on Concession 2 in Brock Township, southeast of Sunderland, Ont., in what is now Durham Region, OPP said.

On Monday, it will be the 40th anniversary of the discovery of Silverman’s body and police said they’re using the occasion to draw attention to the case.

“These [cases] are never closed. We’re always open to new information. Sometimes, you know, over time that information dries up and to stimulate some leads these are the kinds of things we do on these anniversaries,” Sgt. Jason Folz told on Friday.

Investigators said the $50,000 reward that was first offered by the province in June 2005 for information leading to the arrest and conviction of whoever is responsible for her murder is still being offered.

“The OPP is confident there are people who know what happened to Deborah,” Det. Insp. Scott Moore, a major case manager for the OPP’s criminal investigations branch, said in the release.

“We encourage anyone to come forward with information to bring a resolution to Deborah's family and friends who have lived with this terrible loss."

Folz said the family is still looking for answers about what happened to Silverman.

“The bottom line is somebody knows something and it’s been a really long time and we’re hopeful that somebody is able to give us some information that might lead to Deborah’s killer,” he said.

Anyone with information related to the case is asked to call the OPP or call Crime Stoppers at 1-800-222-8477 (TIPS).