The File
The San Diego shooters left a 75-page manifesto titled "The Crusade Sons of Tarrant" that opened with repeated antisemitic declarations of "IT'S THE JEWS" and combined anti-Trump, anti-Muslim, anti-LGBTQ, incel, neo-Nazi, ecofascist, and accelerationist content. That is the central documented fact. The attack was not a MAGA event. It was a Third Positionist and accelerationist endpoint.
The paired file documents the pipeline and the endpoint. The pipeline runs from mainstream social-media exposure through Discord-style community consolidation and Telegram-style accelerationist ecosystems. The endpoint is a manifesto culture that glorifies prior mass killers, treats violence as a means to collapse society, and uses irony, memes, and subcultural identity as a bridge into explicit neo-fascist action.
The case must be disciplined. The record does not show that Fuentes, Owens, Carlson, Jones, Barnes, Baris, or any Panican figure directed Clark or Vazquez. The record shows that Clark and Vazquez occupied the same anti-Trump, antisemitic, anti-liberal, accelerationist ideological space that the broader influencer cluster makes more familiar and less shocking to inhabit.
The Documented Record
2018: J.M. Berger described algorithmic radicalization and the role of search and platform recommendation environments in moving users toward extremist material. [DOCUMENTED]
2017: Kathleen Blee described how sustained extremist community interaction normalizes fringe ideas and increases participant comfort with racist activism. [DOCUMENTED]
2021 to 2022: Middlebury CTEC documented militant accelerationist coalition building on Telegram, including neo-fascist networks, Atomwaffen-style spinoffs, recruiting channels, and propaganda distribution. [DOCUMENTED]
May 14, 2022: Payton Gendron murdered ten Black Americans in Buffalo and used a private Discord server as an online diary and planning space. [DOCUMENTED]
October 12, 2022: Juraj Krajcik murdered two people outside an LGBTQ bar in Bratislava, cited Terrorgram material, and was later celebrated by the ecosystem as "Terrorgram's First Saint." [DOCUMENTED]
2022 to 2026: The documented funnel runs from mainstream platforms to semi-private Discord servers to encrypted or lightly moderated Telegram channels where militant accelerationism, shooter glorification, and operational encouragement circulate. [HIGH]
2022 to 2026: Terrorgram's "Saints Culture" venerates prior mass killers such as Breivik, Roof, and Tarrant as models. [DOCUMENTED]
2022 to 2026: Groyper and America First spaces are documented as gateway environments where white nationalist ideas are packaged as traditionalism, Christianity, irony, and anti-establishment politics before bleeding into harder accelerationist spaces. [HIGH]
2022 to 2026: Ironic Nazi culture and meme packaging desensitize younger users by framing eliminationist rhetoric as jokes until the ideological payload becomes normal. [HIGH]
May 18, 2026: Cain Lee Clark, age 17, and Caleb Liam Vazquez, age 18, attacked the Islamic Center of San Diego, killing three people before dying by self-inflicted gunshot wounds. [DOCUMENTED]
May 18, 2026: Investigators found a 75-page manifesto titled "The Crusade Sons of Tarrant." [DOCUMENTED]
May 2026: CBS reported that the manifesto opened with an antisemitic diatribe repeatedly declaring "IT'S THE JEWS." [DOCUMENTED]
May 2026: The manifesto expressed hostility toward Muslims, Jews, Black people, women, LGBTQ people, both the political left and political right, and Trump-aligned politics. [DOCUMENTED]
May 2026: Clark reportedly called Trump a "Jewish shill." [HIGH]
May 2026: Vazquez reportedly wrote that he was "certainly not left wing, nor am I right wing - especially not with MAGA or Trump." [HIGH]
May 2026: Vazquez described himself as a "Third Positionist," specifically aligning most with National Socialism and eco-fascism. [DOCUMENTED]
May 2026: Clark described himself as a "Christian EcoFascist." [DOCUMENTED]
May 2026: The manifesto praised Hitler, Tarrant, Breivik, McVeigh, Kaczynski, and other attackers or extremist figures. [DOCUMENTED]
May 2026: Nazi and neo-Nazi iconography appeared in the case record, including Sonnenrad or Black Sun symbolism, SS references, Atomwaffen-style imagery, Confederate flag imagery, and swastika references. [HIGH]
May 2026: CBS and other outlets reported that the manifesto called for race war and explicitly referenced accelerationism. [DOCUMENTED]
May 2026: FBI and media reporting indicated that Clark and Vazquez met online and exchanged radicalized ideology. [DOCUMENTED]
May 2026: CBS reported that the attack video was uploaded to a violence-video site already on the FBI radar in connection with the True Crime Community, an online milieu that glorifies mass shooters and encourages violence and self-harm. [DOCUMENTED]
May 2026: Available mainstream sources did not identify the exact platforms where Clark and Vazquez first met, such as Discord, Telegram, 4chan, or another specific site. [DOCUMENTED]
May 2026: Available sources did not corroborate a claimed 2025 Chula Vista Police Department contact with Vazquez over extremist ideology and mass-casualty attacks. [HIGH]
May 2026: The record supports the analytical conclusion that the shooters occupied a radicalization endpoint where anti-Trump antisemitism, Third Positionism, accelerationism, and shooter glorification converged. [INFERENCE]
May 2026: The record does not support a claim that the Panican influencer cluster operationally directed the attack. [DOCUMENTED]
What the Record Does Not Establish
The record does not establish that any named Panican influencer communicated with Clark or Vazquez. It does not establish that the shooters regularly consumed those specific influencers. It does not establish direction, recruitment, funding, or a command chain. It does not establish that the attack was MAGA. The manifesto expressly rejected Trump and MAGA through antisemitic and Third Positionist framing.
The strongest rival explanation is decentralized online radicalization without influencer-chain causation. Under that explanation, Clark and Vazquez came out of the True Crime Community, accelerationist shooter culture, and neo-Nazi internet milieus independently of the political-media cluster. The file still matters because the ideological endpoint overlaps with the rhetorical space being normalized: anti-Trump, anti-liberal, antisemitic, anti-Christian-Zionist, anti-minority, and collapse-seeking.
Sources
- Extremism, J.M. Berger, MIT Press, 2018.
- Understanding Racist Activism: Theory, Methods, and Research, Kathleen M. Blee, Routledge, 2017.
- Militant Accelerationism Coalitions: A Case Study in Neo-Fascist Accelerationist Coalition Building Online, Middlebury CTEC, 2022
- The Three Phases of Terrorgram, Accelerationism Research Consortium, 2024
- San Diego mosque shooting manifesto coverage, CBS News, 2026.
- San Diego Islamic Center shooting coverage, PBS NewsHour and Associated Press, 2026.
- San Diego mosque shooter Cain Clark identified as former high school wrestler, New York Post, 2026.
- San Diego mosque shooting investigation coverage, Washington Post, 2026.
Connected Files
OPP-002: Provides the influencer cluster whose rhetoric overlaps the endpoint environment. OPP-005: Documents Groyper irony, identity contradiction, and subculture mechanics. OPP-004: Ye shows the celebrity-vector version of extremist amplification. NGO-003 and FOR-005: Supply foreign influence and state-media structural analogues.