Federal investigators are examining Discord communications and other online writings linked to the two teenage suspects in the deadly attack on the Islamic Center of San Diego, as authorities assess how digital extremist networks may have shaped the violence.
Cain Clark, 17, and Caleb Vazquez, 18, killed three people at the mosque on Monday before dying from self-inflicted gunshot wounds, police said. FBI Special Agent in Charge Mark Remily said the pair met online before learning they lived in the same area and were radicalized through internet channels.
Investigators are working to authenticate a lengthy document posted online that contains antisemitic, anti-Muslim and accelerationist material. Discord said it preserved account information related to the case and disclosed it to law enforcement while stating it found no evidence the livestream originated on its platform.
Search warrants recovered more than 30 guns, ammunition and tactical gear from residences tied to the suspects. Police Chief Scott Wahl said the shooting is being investigated as a possible hate crime. Counter-extremism analysts said the case fits a pattern in which attackers prepare manifestos and streams alongside weapons.
The Anti-Defamation League said writings attributed to the suspects reflected immersion in nihilistic violent extremist ecosystems online. Investigators are also examining whether a livestream posted before the attackers died was authentic. Families of the three victims gathered for funerals as interfaith leaders condemned targeted violence against Muslim worshippers in America’s eighth-largest city.
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Sources:
https://dailycuratednews.substack.com/p/news-headlines-may-22-2026