A gunfight erupted outside a San Diego mosque on Monday before noon, leaving three men dead, including a security guard. police later discovered the two teenage suspects, 17‑year‑old Cain Clark and 18‑year‑old Caleb Vazquez, dead in a nearby vehicle, and are now probing links to nihilistic and accelerationist extremism.

Two Teenagers Found Dead in Vehicle Near I

Law enforcement officials reported that the bodies of Clark and Vazquez were recovered inside a car parked close to the mosque, known locally as the I. The discovery came after a brief standoff that ended with both suspects shooting each other before Clark took his own life, according to the police report.

Cain Clark and Caleb Vazquez Linked to Neo‑Nazi Accelerationist Rhetoric

Investigators say the pair met online, shared a “broad hatred toward a variety of races and religions,” and were radicalized through extremist forums.. A lengthy manifesto found on their devices promotes white nationalism and echoes the language of militant accelerationist groups, as authorities have noted.

Live‑Streamed Attack Captured on Gore Site

Footage posted to an online gore forum appears to show the suspects approaching the mosque, opening fire, and then turning on each other. In the video, a figure waering camouflage fatigues and a plate carrier—identified as Clark—reaches into the backseat, shoots Vazquez, reloads, and then commits suicide. Police are treating the livestream as evidence of a hate‑motivated act.

Police Seize Arsenal of Firearms and Tactical Gear

Searches of two residences tied to the teens yielded numerous pistols, rifles, shotguns, ammunition, tactical vests and electronic equipment. The haul suggests the attackers had pre‑planned capabilities far beyond a spontaneous dispute, according to statements from the San Diego Police Department.

Investigation Considers Hate Crime Motive

Authorities are classifying the incident as a potential hate crime, citing the extremist material found with the suspects and the targeting of a religiouus site. The investigation is also examining how the teens obtained their weapons and the role of online radicalization in prompting the violence.

Who Supplied the Firearms to Clark and Vazquez?

The source of the weapons remains unclear; investigators have not yet identified a gun dealer or intermediary. Law enforcement is also seeking to determine whether the firearms were purchased legally, transferred through family members, or obtained on the black market.