544 Results

From San Diego to Montreal: Antisemitism Serves as a Throughline in Recent Extremist Shootings

Article

Photo: Police near the scene of an active shooter situation on June 22, 2026 in Montreal, Canada. According to reports, a police officer was killed in a shootout, and a suspect was also killed at the scene. (Andrej Ivanov/Getty Images)

A shooter opened fire in Montreal’s Côte-des-Neiges neighborhood on June 22, resulting in two deaths and one injury before responding law enforcement killed the perpetrator. The perpetrator was identified by law enforcement as a 25-year-old Canadian man; whether or not the shooter selected specific targets is unknown. ADL analysis of a lengthy manifesto reportedly left behind by the shooter reveals a range of extremist views, including antisemitism, incel-linked ideas, and…

June 24, 2026

Keeping the Lights On: How Cloudflare Sustains Violent Extremism, Graphic Violence and Terrorism Online

Report

An exterior view of Cloudflare's headquarters in San Francisco, CA.

This report details the real human impact of some of the sites Cloudflare sustains and evaluates the systemic policy and enforcement gaps that allow them to remain operational.

May 20, 2026

The True Crime Community (TCC)

Backgrounder

TCC main image showing school shooters and AI images

A deep dive into the TCC, the online subculture built around the glorification of mass killers, and its connections to a growing number of attacks worldwide.

June 18, 2026

Sneako: Five Things to Know

Article

Sneako is a livestreamer and leading vector for antisemitism, white supremacy, and misogyny in the manosphere, with an audience of millions.

June 08, 2026

Two Years of Turmoil: The Strategic Evolution of Anti-Israel Activism on U.S. Campuses and 2025–2026 Challenges

Report

Columbia students organize memorials and rallies on the first anniversary of Hamas's October 7, 2023, terror attack, on October 7, 2024, in New York City. Anti-Israel protesters hold "Victory of the Resistance" signs, a slogan that references Palestinian terror groups, including Hamas

ADL examined the strategic evolution of anti-Israel activism on U.S. campuses and provides recommendations for universities to respond proactively to changing tactics.

November 19, 2025

San Diego Mosque Shooters' Apparent Manifestos Reveal Anti-Muslim Extremism, Antisemitism, and Broader Extremist Ideology

Article

Law enforcement and emergency services respond to a shooting at the Islamic Center of San Diego (ICSD) on May 18, 2026

Teen killers cited white supremacist Christchurch killer as inspiration for mosque attack that left three dead.

May 19, 2026

Chants of 'Death to Zionists,' Hamas Flags and Support for 10/7 Attack Mark Some Nakba Day Rallies

Article

Pro-Palestinian activists march during a protest on Nakba Day, May 15, 2026, in New York City

Nakba Day rallies this year featured explicit support for terrorist organizations and disruptions at Jewish-owned businesses.

May 18, 2026

Amazon's AI Recommends: Antisemitism

Report

Artificial intelligence is rapidly reshaping how people consume and trust information—including what books they read. Amazon, the world’s largest bookseller, uses Large Language Models (LLMs) to generate short, snappy summaries of customer reviews. While this may be useful when applied to bedsheets or kitchen appliances, applying AI to book reviews—without human oversight—is proving to be deeply problematic. We found that AI-generated reviews are promoting books that…

April 17, 2025

Murder and Extremism in the United States in 2024

Report

This ADL Center on Extremism report details and analyzes the domestic extremist-related murders in the United States in 2024

February 21, 2025

Hate in the Cascade States: Extremism & Antisemitism in Oregon & Washington

Report

This report provides a snapshot of antisemitism and extremism in Oregon and Washington, highlighting key trends tracked by the ADL Center on Extremism.

February 03, 2025

Steam-Powered Hate: Top Gaming Site Rife with Extremism & Antisemitism

Report

In a new study, the ADL Center on Extremism found 1.8+ million unique pieces of extremist or hateful content on Steam.

November 14, 2024

One Year Later: Antisemitic Trends Post-10/7

Report

A look at the 10 most prevalent trends in antisemitic messaging, tactics, and patterns post-Oct. 7

October 02, 2024

White Supremacist Propaganda Incidents Soar to Record High in 2023

Report

In 2023, ADL recorded its highest ever number of white supremacist propaganda incidents, with a total of 7,567 cases, a 12% increase from 2022.

March 26, 2024

Murder and Extremism in the United States in 2023

Report

This ADL Center on Extremism report details and analyzes the domestic extremist-related murders in the United States in 2023.

February 20, 2024

Virtual Money, Hateful Reality: The Cryptocurrency Exchanges Enabling Extremist Fundraising in 2023

Report

In 2023, ADL Center on Extremism tracked 15 extremists and their supporters who moved $142k of cryptocurrency to and/or from 22 different crypto companies.

January 12, 2024

Right-Wing Extremist Terrorism in the United States

Report

Modern Right Wing Terror in the United States

This report documents and analyzes the nature of, and increase in, right-wing terrorist incidents in the United States from 2017-2022

November 15, 2023

Hate in the Prairie State: Extremism & Antisemitism in Illinois

Report

This report highlights the key extremist and antisemitic movements, trends, and incidents in Illinois between 2021 and 2022, and the first half of 2023.

October 03, 2023

Hate in the Lone Star State: Extremism & Antisemitism in Texas

Report

An examination of extremist trends and threats in Texas (2021-2023)

September 21, 2023

Anti-Israel Activism on U.S. Campuses, 2022-2023

Report

Read ADL’s annual assessment of anti-Israel activism on U.S. college campuses.

September 12, 2023

Hate in the Golden State: Extremism & Antisemitism in California, 2021-2022

Report

California has dealt with a significant increase in extremist activity. This report highlights the key extremist trends and incidents in 2021 and 2022.

May 09, 2023