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

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

Since the start of the Feb 2026 military operation against the Iranian regime, protesters have mixed in overtly antisemitic, conspiratorial, and pro-terror messaging with their condemnation of the U.S. and Israel.

The U.S. and Israeli military operation against the Iranian regime triggered an immediate surge of antisemitic, anti-Zionist and conspiratorial commentary that spanned the ideological spectrum. COE is tracking 7 rhetorical trends.

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.

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.

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.

As Texas authorities respond to the devastating floods that killed at least 119 people, with over 170 still missing, Patriot Front has been using the tragedy to generate publicity under the guise of disaster relief.

Extremists and antisemites are weaponizing seemingly innocuous phrases, symbols and numbers to promote hate, particularly on mainstream social media platforms.

In the aftermath of the U.S strikes on Iran's nuclear sites, we're seeing a continued spike in antisemitic and conspiratorial anti-Israel rhetoric—from extremist influencers and public-facing leaders.

Antisemitic threats and violent rhetoric surged by 594% on Telegram following the recent escalation between Israel & the Iranian regime, according to new ADL Center on Extremism research.

Antisemites and extremists of varying ideologies quickly reacted to reports of preemptive Israeli strikes against the Iranian regime with their predictable hate-filled rhetoric.

Amid a spate of violent antisemitic attacks in recent weeks, too many online platforms are failing to enforce their policies or rolling back rules meant to keep users safe.

Videos allegedly recorded by the suspect shortly before the Boulder firebombing assault that targeted the Jewish community and injured 12 on Sunday, began circulating as pro-terror propaganda on Telegram one day later

Reactions to the latest attack targeting the Jewish community followed a familiar pattern to the murder of a couple leaving a Jewish event in D.C. two weeks ago -- celebration, justification, and legitimization.

Since Jan. 2020, the ADL Center on Extremism has documented 21 terrorist plots or attacks targeting Jews, Zionists or Jewish institutions in the U.S. Fifteen of these occurred after October 7, 2023.