Niagara Police said they’ve identified a mystery woman they were looking for in their investigation. Still, there’s no explanation for the murders this week in Hamilton, Niagara, and Toronto.

With accused killer Sabrina Kauldhar under arrest and charged with multiple murders, Niagara Police say more than 100 investigators are working on this case.

They were looking for a woman who was recorded on video buying clothing at the Giant Tiger in Burlington early in the week.

They say that clothing was found in the possession of the murder suspect.

Today, police say the woman has been located, is cooperating with police, is not connected to any of the offenses, and is not facing any charges.

According to police, on Tuesday, a woman in her 60s was found dead at home in the Keele and Dundas area of Toronto with visible signs of trauma.

On Wednesday, 47-year-old Lance Cunningham was attacked at random and killed in a park in Niagara Falls.

Then Thursday, 77-year-old Mario Bilich, a retired teacher, was stabbed and killed in downtown Hamilton.

30-year-old Kauldhar was later arrested at a hotel in Burlington.

She’s charged with first-degree murder in the Toronto death and two counts of second-degree murder in the Niagara and Hamilton killings, which police say were random attacks.