December 6, 1989 - École Polytechnique Massacre Occurs in Montreal

On December 6, 1989, you're looking at one of Canada's darkest days. A gunman entered École Polytechnique de Montréal's engineering building and spent roughly 20 minutes systematically targeting women, separating them from men before opening fire. He killed 14 women using a legally purchased Ruger Mini-14 rifle, wounded several others, then took his own life. His motive was purely antifeminist. There's much more to this tragedy — the victims, the failures, and the lasting changes it forced on Canada.

Key Takeaways

• On December 6, 1989, a gunman carried out a roughly 20-minute rampage at École Polytechnique de Montréal's engineering building.
• The attacker deliberately separated men from women, targeting women with antifeminist rhetoric before opening fire with a semi-automatic rifle.
• Fourteen women were killed, including twelve engineering students, one nursing student, and one university employee, with victims aged 20 to 31.
• The gunman had legally purchased his Ruger Mini-14 rifle, made at least seven reconnaissance visits, and left a note listing 19 women he blamed.
• December 6 is now Canada's National Day of Remembrance and Action on Violence Against Women, observed annually with vigils and a nationwide moment of silence.

What Happened at École Polytechnique on December 6, 1989?

On December 6, 1989, a gunman armed with a legally purchased Ruger Mini-14 semi-automatic rifle and a hunting knife entered the engineering building at École Polytechnique de Montréal around 4 p.m. and launched a targeted, antifeminist attack on women that lasted roughly 20 minutes.

He fired approximately 100 rounds throughout the building, killing fourteen women and injuring several others.

You'd recognize this tragedy as a defining moment in Canada's understanding of gender violence. The gunman moved quickly through classrooms and hallways, deliberately targeting women before taking his own life.

Police didn't enter the building until nearly 25 minutes after the first 911 call, exposing serious campus safety failures.

Twelve of the fourteen women killed were engineering students, and December 6 is now Canada's National Day of Remembrance and Action on Violence Against Women. The attack also prompted significant gun control reforms in Canada in the years that followed. In the classroom, Lépine separated men from women before targeting female students, ranting against feminists as he carried out the attack.

Who Were the 14 Women Marc Lépine Killed?

Marc Lépine killed fourteen women that day—twelve engineering students, one nursing student, and one university employee.

Most were female engineers pursuing degrees in mechanical, civil, chemical, and materials engineering.

The youngest was Annie Turcotte, born in 1969, and the oldest was Barbara Klucznik-Widajewicz, the nursing student, born in 1958.

Maryse Laganière wasn't a student at all—she worked as a budget clerk in the finance department.

You'll find their names central to memorial rituals held every December 6 across Canada. In Canada, a woman or girl is killed every 48 hours, a grim reminder that the violence claimed that day did not end with it.

Before opening fire, Lépine separated the men from the women and declared, "You're all a bunch of feminists, and I hate feminists!", making his targeting of women explicit and deliberate.

Geneviève Bergeron, Hélène Colgan, Nathalie Croteau, Barbara Daigneault, Anne-Marie Edward, Maud Haviernick, Maryse Laganière, Maryse Leclair, Anne-Marie Lemay, Sonia Pelletier, Michèle Richard, Annie St-Arneault, Annie Turcotte, and Barbara Klucznik-Widajewicz—each name represents a life Lépine deliberately ended because of their gender.

Why Did Lépine Target Women in Engineering?

Why did Marc Lépine specifically target women studying engineering? He believed women had no place in technical fields and viewed their presence as a direct gender threat to male identity and status. In his mind, women weren't entitled to professional advancement in male-dominated spaces.

Lépine blamed feminists for ruining his life, claiming a woman took his spot at École Polytechnique. His ideology centered on professional gatekeeping — he believed engineering belonged exclusively to men. His suicide note explicitly targeted feminists, and authorities discovered a list of 19 prominent women he'd planned to assassinate. He had even met with a university admissions officer in April 1989 to complain about women taking over the job market. Among those on his hit list was Quebec's first female firefighter, illustrating how deeply he resented women breaking into roles he considered exclusively male.

How Marc Lépine Planned the Attack

Lépine's hatred of women in engineering didn't stay ideological — he converted it into a calculated plan. He legally purchased a Ruger Mini-14 rifle on November 21, 1989, telling the clerk it was for hunting small game. His weapon stockpiling extended to a hunting knife as backup. He visited École Polytechnique at least seven times beforehand, memorizing layouts, corridors, and key offices without raising suspicion.

His social isolation fed his obsession. On December 6, he wrote three letters, including a suicide note listing 19 women he labeled "radical feminists" who'd ruined his life. He cited Denis Lortie's 1984 National Assembly attack as inspiration. By 5:10 p.m., he'd entered a second-floor classroom with roughly 60 students, separating women from men before opening fire. The entire rampage lasted only about 20 minutes before Lépine turned the weapon on himself.

When the attack concluded, investigators found that about sixty unfired cartridges remained in the boxes Lépine had been carrying, suggesting the massacre's death toll could have been significantly higher.

Why Did Police Wait 25 Minutes to Enter the Building?

While Lépine moved freely between three floors killing 14 women, 27 police officers stood outside the building for nearly 25 minutes. Police hesitation stemmed from several compounding failures in tactical preparedness:

• Containment protocols prioritized preventing escape over immediate entry
• SWAT assembly requirements delayed any coordinated response
• Unverified bomb threats complicated decision-making
• Officers lacked breaching equipment for forced entry
• Building layout remained unknown to responding units

You can hear the consequences in the numbers: over 100 rounds fired, 14 dead, 14 wounded — all while police secured a perimeter but left every floor unsecured. The 1991 coroner's report confirmed what critics already knew — inadequate training and slow radio communication cost lives that afternoon.

How the École Polytechnique Shooting Changed Canada's Gun Laws

By 1991, Bill C-17 banned large-capacity magazines, imposed 28-day waiting periods, and required background checks.

Bill C-68 followed in 1995, mandating training and establishing a centralized gun registry. The legislation was partly driven by activist Heidi Rathjen, whose petition to ban military-style assault weapons gathered 560,000 signatures.

Progress stalled, though. Conservatives dismantled the long-gun registry by 2015.

A 2020 ban on 1,500 assault-style firearms remained incomplete, with loopholes allowing new models to enter the market unchallenged. Despite this, semi-automatic rifles continued to be classified as non-restricted firearms, remaining purchasable in unlimited quantities.

How December 6 Became a National Day of Remembrance

The debate over gun control wasn't the only lasting response to the massacre. In 1991, Parliament established December 6 as Canada's National Day of Remembrance and Action on Violence Against Women, following a private member's bill introduced by MP Dawn Black. It received unanimous all-party support.

Every year, this day drives both public memorials and policy advocacy across the country:

• Canadian flags fly at half-mast on all federal buildings
• A nationwide minute of silence occurs at noon
• White or purple ribbons symbolize commitment to ending violence
• Vigils, ceremonies, and rose-laying events honor victims by name
• Communities remember roughly 3,400 women on the national femicide list

The massacre claimed the lives of fourteen women, including Geneviève Bergeron, Hélène Colgan, and Annie Turcotte, ranging in age from 20 to 31 years old.

Despite decades of progress, gender-based violence remains deeply persistent, with one woman killed by a current or former intimate partner every six days in Canada on average. This ongoing struggle echoes broader historical patterns in which wartime civil liberties and civil rights have been sacrificed or suppressed under the pressure of fear and political expediency.

You'll find that December 6 isn't just about remembrance — it's a renewed annual call to action.