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The victim was taken to hospital with life-threatening injuries. She remains in grave condition, Hopkinson said Monday afternoon, and police have not yet been able to interview her.

We believe it to be a completely unprovoked attack

“I don’t believe anyone has spoken to her,” he said. “If we catch her, we might be able to establish that there’s something going on in the background, here, that we don’t know about. But we’ve not found any link.”

The suspect was able to walk away from the scene after the attack, police said.

Police released a photo of the suspect taken from surveillance video Saturday. The suspect was wearing a lavender dress shirt and a black blazer and matching skirt at the time of the attack. She was carrying what appears to be a red shopping bag. On Monday morning, police announced that the suspect had been identified as Rohinie Bisesar.

She is a financial advisor and investor according to her LinkedIn profile. She received her MBA from the Schulich School of Business at York University in 2007. According to her profile, she also received a Bachelor of Administrative Studies degree in general management from York, a Bachelor of Science in molecular biology from the University of Toronto, a certificate in mining and received a certification from the Canadian Securities Institute. She did consulting work between September 2012 and November 2014, and has been “opportunity seeking” since then.

Bisesar regularly visits shops and plazas in the financial district, and is well-known in the area, police said. If anyone sees the suspect, they are asked to call 9-1-1. Do not approach her, police said. Although she has no criminal history, she is considered “violent and dangerous.”