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Ontario Provincial Police told a news conference Wednesday they are looking for just one person in connection with the murder of Sonia Varaschin. ((CBC) )

There was no sign of forced entry into the home of slain nurse Sonia Varaschin in Orangeville, Ont., police say, adding they don't believe her killing was random.

Ontario Provincial Police told a news conference Wednesday in Orangeville, a town of about 29,000 about 80 kilometres northwest of Toronto, that they are looking for just one person, and the suspect is likely a man who wore a Size 10 or 11 work boot.

Mark Pritchard, an OPP detective inspector, said the brand of the boots is either Wind River or Dakota, sold exclusively by Mark's Work Wearhouse.

He asked the public to think back to Aug. 30, when the killer may have come home with unexplained stains on his clothes or boots, adding that he may have thrown out the boots since then.

"We believe that Sonia's killer is very familiar with Orangeville, with the outskirts of Orangeville, Sonia's neighbourhood, Sonia's townhouse — and potentially Sonia herself,"  Pritchard said.

Police confirmed on Tuesday that the human remains found about 13 kilometres outside Orangeville on Sunday were 42-year-old Varaschin.

Her family reported her missing eight days ago when she didn't show up for work.

Police said earlier they believe the killer used Varaschin's white Toyota to move her body from her home to the wooded area where it was found.