Each year, ADL’s Center on Extremism tracks murders perpetrated by all types of extremists. In 2018, every single extremist killing — from Pittsburgh to Parkland — had a link to right-wing extremism. This report provides key insights into the crimes, including motivations behind these violent attacks.
157 Results
For five years, Sheikh Faisal was the “religious sanctioner” for the foremost Islamist extremist group in the U.S., Revolution Muslim. From 2007-2011, Revolution Muslim brought Al-Qaeda’s ideology to the United States and, with it, a rabid anti-Semitism.
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.
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.
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.
Springfield, April 9, 2025 … ADL Midwest (the Anti-Defamation League) and state legislators will hold a news conference today, Wednesday, April 9, at 1:00 pm to discuss ADL’s new report highlighting the rise in extremism and extremist activity across Illinois as tracked by ADL’s Center on Extremism. The news conference will take place in the Blue Room of the Illinois State Capitol Building in Springfield. The report provides specific overviews of extremist activity in…
Antisemites and extremists of varying ideologies quickly reacted to reports of preemptive Israeli strikes against the Iranian regime with their predictable hate-filled rhetoric.
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.
New York, NY, June 1, 2025 — ADL (Anti-Defamation League) is closely monitoring of reports of a violent antisemitic attack during today’s Run for Their Lives event in Boulder, Colorado. This attack occurred at a weekly gathering where Jewish community members run and walk in solidarity with the hostages kidnapped by Hamas on October 7. The suspect, identified by authorities as Mohamed Sabry Soliman, 45, allegedly yelled "Free Palestine" during the attack. There were 15 victims in…
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.
Many in anti-Zionist circles are celebrating and justifying the murders of two Israeli embassy staffers, and in some cases, even encouraging further violence.
In the wake of the murder of two people at the Capital Jewish Museum in Washington, D.C., conspiracy theories about the shooting quickly circulated on social media from users across the political spectrum. The most prevalent of these conspiratorial posts alleged that the shooting was a purposeful and coordinated “false flag” attack carried out by the Israeli or U.S. government to make Jews and Israel look sympathetic, tighten relations between the two countries or rationalize going…
The ADL Center on Extremism has been able to connect the alleged suspect, with a high degree of certainty, to the manifesto, titled “Escalate For Gaza, Bring The War Home.”