Two teenagers carried out a lethal attack at the Islamic Center of San Diego, exhibiting a mix of hate against various groups. The FBI describes a document found with the attackers as a “manifesto” filled with antisemitic and anti-Muslim views, among other hate speech.
Mark Remily of the FBI’s San Diego Field Office characterized the document as not discriminating in its hatred. It starts with an antisemitic emphasis, repeatedly blaming Jews for global issues. The text advocates for violence and references “accelerationism,” a white supremacist belief encouraging societal collapse.
The teens streamed the attack online, echoing the 2019 mosque shooting in Christchurch, New Zealand, which resulted in 51 deaths. Their gear contained Nazi symbols, and one weapon was inscribed with “Race War.” The so-called “manifesto” links the teen shooters to radical ideologies, expressing a desire to emulate the Christchurch attacker. Oren Segal from the Anti-Defamation League noted the attackers referred to themselves as heirs of the Christchurch shooter.
This document spans 75 pages and involves sections on various forms of hate, addressing antiblack, anti-Muslim, and misogynistic views, among others. Each teen wrote a portion, identifying with the incel movement. This term abbreviates “involuntary celibate” and has connections to past shootings. A segment included a question-and-answer format, addressing ambiguous political leanings.
The FBI terms the teens’ motivations under “nihilistic violent extremism.” This ideology combines multiple hatred forms. The document appears to be compiled from online sources and includes potential AI involvement. CBS News has not confirmed its origin.
Authorities suggest the teens met online and only later in person, both residing in the San Diego area. A suicide note from one shooter, 17-year-old Cain Clark, alludes to his willingness to die for his beliefs. Cain participated in high school wrestling. The other shooter, Caleb Vazquez, was 18 years old.
Investigations reveal influences from various mass shooters, including the Christchurch attacker. The teens’ attack recording circulated on a platform known for violent content. This platform is monitored by the FBI due to trends in youth engagement with communities that glorify shooters.
The attack killed three individuals, including a security guard who was credited with saving many. The video depicts Clark shooting Vazquez before ending his own life. The teens had amassed weapons, 30 guns, and a crossbow, belonging to Clark’s parents.
Initial Alert
The first alert came at 9:40 a.m. when Clark’s mother contacted 911, worried her son was suicidal after discovering missing weapons and a vehicle. Her son was in camouflage, and this information set off a law enforcement alert, though no specific site was targeted.
Two hours subsequently, the teens attacked the mosque, killing the front security guard. This facility included a school with over 100 children. However, the guard, Amin Abdullah, activated a lockdown, securing the children. The teens noticed two men in the parking lot, left the mosque to confront them, and then fled in a vehicle, firing from it.
Shortly after, Clark fatally shot Vazquez and himself just a few blocks away.

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