On Apr. 23 2018, a man drove a white rental van down busy sidewalks in Toronto, killing 11 people and injuring 16 others.

The driver was arrested without injury on the day of the attack and was brought in for questioning by Toronto Police.

The almost three-hour investigative interview between the driver and Det. Rob Thomas was released publicly in September 2019. At the time, the driver of the white rental van was facing ten counts of first-degree murder and 15 counts of attempted murder.

During the interview, the suspect begins to speak about4Chan – an online anonymous image board – where he engaged in conversations with others about his frustrations with women and being a part of the Involuntary Celibate (Incels) community, an underground online community that lives primarily on the dark web.

The interview was a crucial piece in the trial of the driver that began in November 2020.

During the trial, the driver had admitted to planning and carrying out the attack, but argued he should be found not criminally responsible for his actions because of his autism spectrum disorder.

The Crown had argued that the driver is a mass killer who knew right from wrong, and happens to have autism. But the defence argued that because of autism, the driver never developed empathy, and that lack of empathy left him incapable of rational choice.

On this episode of Global News’ What happened to…?, Erica Vella revisits the Toronto Van Attack and speaks with Watkins who explains details and tactics used in the investigative interview with the driver. She also learns more about the trial and continues her conversation with survivor, Cathy Riddell.

Learn more about your ad choices. Visit megaphone.fm/adchoices