A vehicle-ramming attack occurred on April 23, 2018, when a rented van was driven along Yonge Street through the North York City Centre business district in Toronto, Ontario, Canada.

[17][18] At Finch Avenue, a white Chevrolet Express van, rented from Ryder, ran a red light, then drove southbound on the west-side sidewalk of Yonge Street, striking multiple pedestrians.

[23] A single police officer in traffic control capacity,[24] Toronto Police Service constable Ken Lam, intercepted the damaged van, which was stopped on the north sidewalk on Poyntz Avenue, just west of Yonge Street and two blocks south of Sheppard Avenue, about 2.3 kilometres (1.4 mi) south of where the attack began.

Lam stopped his unmarked cruiser near the van and confronted the suspected driver, later identified as Alek Minassian, standing near the opened driver-side door.

[20][25] During the confrontation, the driver of the van repeatedly drew his hand from his back pocket and pointed a dark-coloured object toward the officer as if it were a pistol.

[1] The eleven victims killed in the attack were: Fifteen others were injured, including Robert Anderson, Amir Kiumarsi (Persian: امیر کیومرثی), Aleksandra Kozhevinikova (Russian: Александра Кожевникова), Mavis Justino, Hyeon Jeong Moon (Korean: 문현정), Morgan McDougall, Jun Seok Park (Korean: 박정숙), Samantha Peart, So Ra (Korean: 라소), Catherine Riddell, Sammantha Samson, Xiaolong An (Chinese: 安小龙), Beverly Smith, Dina Risin, and Yunsheng "Bob" Tian (Chinese: 田云生).

[51] Faisal Hussain, perpetrator of the 2018 Toronto shooting had also developed an interest in inceldom prior to his attack but police found no evidence of radicalization.

[62] In late 2017, Minassian enrolled in the Canadian Armed Forces for two months, before requesting voluntary release after 16 days of recruit training.

[28][65] The state of involuntary celibacy refers to being unable to find sexual partners[66] and its subculture consists of primarily male online communities.

[67][68] The post, dated shortly before the beginning of the attack on April 23, allegedly read: Private (Recruit) Minassian Infantry 00010, wishing to speak to Sgt 4chan please.

[7][69]"Chad" and "Stacy" are nicknames used on incel-related forums within 4chan and Reddit, to refer to popular, attractive, sexually active men and women, respectively.

[72] Elliot Rodger was the "incel founding father" who committed the 2014 Isla Vista killings in California, and someone whom Minassian claimed to have had contact with up until the days before the 2014 attacks.

[73][74][75] Rodger intended to target attractive women and sexually successful men, which led to him being posthumously idolized by some people on misogynistic online fringe communities, including several incel websites.

[77] On April 24, 2018, Minassian appeared without a lawyer before the Ontario Superior Court of Justice in a Toronto courthouse, shackled and wearing a white prison jumpsuit.

[90] In the decision, Ontario Superior Court Justice Anne Molloy believed that Minassian seemed to be motivated by the desire for notoriety, and referred to him as "Mr. Doe" so as to avoid giving him further recognition.

[16] He filed a notice of appeal the following month, arguing among other things that the trial judge "misapprehended" expert evidence and made unreasonable findings.

[97] Concrete barriers were put up along the edge of the northern sidewalk along Bremner Boulevard in front of the Rogers Centre, due to the same safety concerns prior to the Toronto Blue Jays baseball game against the Boston Red Sox on April 24, 2018.

[98] Prior to the game, the Blue Jays honoured a few of the first responders in a ceremony, which included a video memorial for the victims of the attack followed by a moment of silence.

[103][104] Lighting at the CN Tower and the 3D Toronto sign at Nathan Phillips Square were colourless and dimmed for the evening of April 23, 2018.

[109][110] To better coordinate crowdfunding, the City of Toronto established the #TorontoStrong Fund to support victims and their families, first responders, and those affected by trauma.

[116] On June 13, 2018, the #TorontoStrong's volunteer steering committee announced the appointment of former Toronto mayor Barbara Hall as fund administrator.