On February 10, 2026, a shooter opened fire at Tumbler Ridge Secondary School in British Columbia, Canada, killing at least seven people and injuring more than 25 others. Two additional individuals were found dead at a nearby home. The shooter was found dead from an apparent self-inflicted gunshot wound. Preliminary research by the ADL Center on Extremism (COE) suggests the shooter, who police have identified as Jesse Van Rootselaar, followed a troubling pattern of online radicalization marked…

“F--- the jews! Find me on UpScrolled,” proclaimed one antisemitic influencer last month to her 1.3 million followers on X. UpScrolled, a social media platform launched in June 2025 in response to purported suppression of speech on other platforms, attracted just 20,000 users in its first two months, growing to 150,000 by January 2026. But following panicked and conspiratorial claims about changes to TikTok’s U.S. operating structure, UpScrolled’s user base exploded to…

Every two years, we watch athletes compete on the world stage—and what captivates us isn't just the competition. It's the stories: the struggles, the triumphs, the personal journeys that help us see ourselves and others more clearly. The Olympics offer us a unique opportunity to explore something deeper: the complexities of identity—individual and national.  When we bring these conversations into our classrooms, we're teaching students to see the human stories behind the…

Since Hamas’s October 7, 2023, attacks, analysts from the ADL Center on Extremism (COE) have tracked how some U.S.-based anti-Zionist activists and groups, including Students for Justice in Palestine (SJP) chapters, are amplifying propaganda from Palestinian Foreign Terrorist Organizations (FTOs) and others to promote support for the “resistance” — a euphemistic reference to the various terrorist groups responsible for violent attacks against Israel, including &nbsp…

The explicit celebration of Hamas at a protest targeting a Queens synagogue last week serves as a stark reminder of a disturbing new reality: Pro-terror expressions are becoming openly normalized within the U.S. anti-Israel movement. The January 8 demonstration outside of Young Israel of Kew Gardens Hills in Queens, New York, was ostensibly a protest of an Israeli real estate event taking place inside the synagogue. It quickly devolved into calls to “Globalize the Intifada,” shouts…

ADL's 2025 Year in Review is a month-by-month rundown of what we went through and accomplished as we came together to fight hate and share hope.

In a matter of seconds, anyone can now use popular AI video generation tools to create antisemitic and extremist content. As this technology continues to evolve, existing guardrails often fail to catch prompts that can be used to generate extremist content, contributing to the proliferation of antisemitic propaganda across social media. According to a new analysis from the ADL Center for Technology and Society (CTS), new AI-powered text-to-video tools can be easily used to produce disturbing…

A look at the emerging trends from some of the hundreds of antisemitic incidents the ADL has been tracking in the city since January 1, 2025.

Amid the Gaza ceasefire talks, U.S. anti-Israel activists marked the 2nd anniversary of the October 7 Hamas attack with nationwide disruptive protests and glorification of violence.

At the 45th annual ArabCon in Dearborn, Michigan, several speakers engaged in the promotion of antisemitism and the defense of terrorism, including the Hamas-led terror attack against Israel on October 7, 2023.

Months before Desmond Holly opened fire at a Colorado high school, he developed a deep fascination with mass shooters. Online, he expressed neo-Nazi views and was active on a violent gore site. Offline, he began to amass tactical gear. The deeply disturbing specifics of this case follow a pattern recently discovered by ADL Center on Extremism, which its analysts have found in at least four school shootings committed by young people over the past year. On September 10, 2025, 16-year-old Holly…

The second annual People’s Conference for Palestine highlighted growing extremism within the anti-Israel movement, marked by direct calls for violence and aggressive rhetoric.

The ADL Center on Extremism (COE) found that the shooter had deep reverence for mass killers and researched them extensively.

White supremacists have a long history of trying to recruit youths to join their movement as a means of filling their ranks and maintaining relevancy.

Two school shootings, just weeks apart in late 2024 and early 2025, were united by a common thread: the violent gore website WatchPeopleDie.

Healthcare Workers for Palestine (HCW4P) is a U.S.-based network of anti-Zionist healthcare professionals and students who promote extreme anti-Israel beliefs, including calls to abolish Zionism, glorify terror and draw on antisemitic tropes in their messaging.

DAMPL is a radical, far-left, anti-Zionist group known for engaging in violent and destructive “direct actions” against institutions and individuals perceived as being connected to Israel.