Concordia University shooting (1992)

On August 24, 1992, Valery I. Fabrikant, a mechanical engineering associate professor who had worked at Concordia University in Montreal for 13 years, entered the Engineering department carrying a briefcase containing three handguns and ammunition. Around 1:30 p.m., he went to the ninth floor of the Henry F. Hall Building. Fabrikant had a long history of disruptive behaviour toward students, staff, and colleagues, and relations with the university had become increasingly strained after he was denied tenure and faced dismissal over allegations of intimidation and harassment. He also faced a contempt of court charge related to a lawsuit against colleagues over credit for professional articles.

During the shooting, Fabrikant first sought out the Dean of Engineering and Computer Science and the chair of the mechanical engineering department, but neither was present. He then shot Michael Hogben, president of the Concordia University Faculty Association, who had attempted to hand him a letter restricting his access to faculty offices; Hogben died shortly after. Fabrikant then shot colleague Aaron Jaan Saber, who died in hospital the next day, and wounded staff secretary Elizabeth Horwood in the thigh. He proceeded to the office of Phoivos Ziogas, chair of the electrical and computer engineering department, shooting him twice; Ziogas died in hospital a month later after a struggle with colleague Otto Schwelb, who was unaware Fabrikant carried additional weapons. Fabrikant also shot professor Matthew Douglass four times, killing him almost instantly. He then took a security guard and a professor hostage, locking himself in an office and speaking with an emergency operator for about an hour before being disarmed when a hostage kicked away his gun and the security guard overpowered him. None of the victims were personally involved in the disputes Fabrikant had raised with the university.

Fabrikant was charged with murder and assault. Acting as his own lawyer after firing ten attorneys, he called 75 witnesses in his defense, but a jury took seven hours to convict him of four counts of first-degree murder, attempted murder, and two hostage-related charges. He was later declared a "vexatious litigant" by Canadian courts due to repeated lawsuits filed from prison, and his computer access was restricted. He was denied parole in both 2015 and 2022.

In the aftermath, Concordia University commissioned independent inquiries, including the 1994 Arthurs Report on academic and scientific integrity and the Cowan Report on Fabrikant's employment history and related human-resources issues. The university dismissed Fabrikant 17 days after the shootings, revised its ethics and administrative policies, joined the Coalition for Gun Control, and later adopted a formal Code of Rights & Responsibilities and Code of Ethics. A memorial of four granite study tables and a wall plaque in the Hall Building commemorates the four professors killed.