Teen in San Diego Mosque Shooting Had Prior Police Warning for Nazi Ideology

In May 2026, a tragic shooting at the Islamic Center of San Diego resulted in the deaths of three individuals, including security guard Amin Abdullah, before the two teenage perpetrators took their own lives. Court records have revealed that one of the attackers, 18-year-old Caleb Vazquez, had been flagged to law enforcement in January 2025 for exhibiting alarming behavior and idolizing Nazis. This led to the confiscation of 26 firearms from his family's home under California's "red flag" law.

Vazquez's parents had voluntarily removed the guns from their residence and placed them in a secure storage facility days before the police intervention. Authorities have indicated that Vazquez met 17-year-old Cain Clark online, where both were radicalized. The specific origins of the weapons used in the mosque attack remain under investigation.

Clark's mother reported her son missing and suicidal on the day of the attack, noting that firearms were missing from their home. This prompted an extensive search for the teens prior to the shooting at the Islamic Center.

Court filings indicate that Vazquez had a history of mental health struggles, including a prior involuntary psychiatric hospitalization. His family stated that he was on the autism spectrum and had difficulties with aspects of his identity. They believe exposure to extremist content online contributed to his radicalization.

The attack is being investigated as a potential hate crime, with authorities noting that the suspects had expressed generalized hate rhetoric.

Experts warn that de-radicalizing individuals is becoming increasingly challenging due to the complex and hidden nature of extremist content on social media.