Since 2024, the ADL Center on Extremism has identified at least eight attackers who were active on this gore and violence forum prior to carrying out their acts of violence.

A glossary that explains some of the popular terms, references, and images used to signal transgression and belonging in online communities that glorify mass violence and extremist killings or engage in the exploitation of young people.

A resource hub on targeted and mass violence. Includes a host of new cutting edge research on memetic violence and nihilistic violent extremism (NVE). A suite of research, tools, and resources for parents, educators, and law enforcement.

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.

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

Collection of four reports and backgrounders detailing recent trends in youth radicalization.

Backgrounder detailing the white supremacist Goyim Defense League (GDL).

Preliminary research by the ADL Center on Extremism (COE) found the shooter, who was Black, was fueled by violent misanthropic views, anti-Black hate and hateful extremist beliefs including inceldom and antisemitism. He subscribed to broad

Senate Intelligence Committee chair Sen. Mark Warner (D-VA) issued a letter to Valve president Gabe Newell based on the report’s findings.

An 18-year-old suspect who livestreamed himself stabbing multiple people near a mosque in the Turkish city of Eskişehir on August 12, 2024, was fueled by the extremist belief in accelerationism and motivated by past mass killers.