Ten people were killed and 15 injured on Monday afternoon after a rented white Ryder van jumped a curb and plowed into pedestrians along an approximately one-kilometre-long stretch of Toronto's busy Yonge Street.
Minassian is scheduled to make a court appearance Tuesday at 10 a.m. ET in North York.
A profile on social networking site LinkedIn identifies Minassian as a student at Seneca College in North York, the north Toronto neighbourhood where the attack took place.
The driver was apprehended about 25 minutes after the van first began careening southbound down Yonge Street, the police chief said. The vehicle was at times travelling along the sidewalk and at other times against traffic in the northbound lanes of the busy street, a major artery in Toronto.