It’s been six years since the murder of an Orangeville nurse and police are once again appealing to the public for help.

It was on Aug. 30, 2010, that a blood-stained Toyota Corolla belonging to 42-year-old Sonia Varaschin was found in an alley behind the Orangeville town hall.

Six days later, her body was found by a citizen in Caledon. Her death was quickly ruled a homicide.

Police say she was killed in her home, by somebody wearing a size 10 or 11 work boot. They say the killer was a man, and they have a sample of his DNA.

More than 1,000 tips about Varaschin’s death have been received by the authorities, but none have been strong enough to result in arrests.

Investigators still believe someone has the one key piece of information that can solve this case.

“The community holds the key to solving this crime,” Sgt. Peter Leon said Tuesday.

A $50,000 reward for information that leads to an arrest and conviction is still being offered.

Anyone who may have a tip is encouraged to contact police or anonymously call Crime Stoppers.

With reporting by Allison Tanner and files from CTV Barrie