York Regional Police said officers responded to reports of a vehicle rollover on Keele Street, north of Cavell Avenue, just after 7 a.m. Friday.

The agency says it's been made aware of another witness who was at the apartment at the time of Korchinski-Paquet's death, and is trying to speak to that person.

The Special Investigation's Unit (SIU) said officers responded to a home on Ledbury Crescent in Mississauga for a domestic call on May 10.

"We have no idea what the officers who burst into that apartment have told the SIU nor should we know at this stage… I can simply tell you, our investigation and the facts as I see them, there is clearly a basis for a criminal violation based on the foundation of our investigation," he said.

Global News speaks with the SIU's director about the agency and how it operates. Joseph Martino also outlined the SIU's plans to collect race-based data, but noted mental health data isn't proactively tracked and reported on.

"For too long, the health care system has relied on police to respond to mental health crises in the community ... " the centre said. "People with mental illness and their families deserve better."

"I don't understand why someone that's so harmless was so brutally murdered.''

The SIU was founded in 1990 after the notorious police killings of Black men in Toronto.

"It will be on hold until we can figure out why this information is getting out there speak with the SIU and evaluate the fairness of the process ...," Singh said.

"How did this woman lose her life? How? How are these officers not being held to a higher standard?"