Three Killed in San Diego Mosque Shooting as Police Investigate Hate Crime

On Monday morning, May 18, 2026, two teenage gunmen opened fire outside the Islamic Center of San Diego, killing three men before taking their own lives in a car a short distance away. The attack on San Diego County's largest mosque sent shockwaves through the city and the country. Police are investigating the shooting as a hate crime, and investigators have already found anti-Islamic writing among the suspects' belongings.

The Islamic Center of San Diego sits in the Clairemont neighborhood, about eight miles north of downtown. It houses not just the mosque but also the Bright Horizon Academy, a school where children were present at the time of the attack. Every single one of those kids made it out physically unharmed. But the fact that they were there at all, hiding in closets and behind locked doors while gunfire erupted outside, is the kind of detail that sticks with you.

What Happened That Morning

San Diego police started receiving 911 calls about an active shooter at approximately 11:40 a.m. Pacific Time. Officers arrived within four minutes and found three men dead outside the front of the mosque. The scene was, in the words of Police Chief Scott Wahl, "extremely chaotic." Between 50 and 100 officers ultimately flooded the facility, conducting a room-by-room clearance and breaching doors in some cases to make sure no one else was in danger.

While that sweep was still underway, reports of additional gunfire came in from a location a few blocks away. A landscaper in the area was shot at but not struck. The bullet apparently deflected off his helmet. Less than a quarter mile from the mosque, police found a BMW stopped in the middle of the street. Inside were the two suspects, both dead from what appeared to be self-inflicted gunshot wounds. Bomb technicians later cleared the vehicle.

By about 1:07 p.m., police confirmed the threat was neutralized. No officers fired a single shot during the entire incident.

The Security Guard Who Saved Lives

One of the three victims was a security guard named Amin Abdullah. A family friend identified him to the Associated Press as a father of eight. According to the mosque's director, Imam Taha Hassane, Abdullah warned teachers inside the school to lock their classroom doors before he was killed. That single act almost certainly prevented the gunmen from reaching the children inside.

Police Chief Wahl didn't mince words about Abdullah's role. He called the guard's actions "heroic" and said he played a "pivotal role" in keeping the shooting from being much worse. "He undoubtedly saved lives today," Wahl told reporters. San Diego Mayor Todd Gloria echoed that sentiment, telling ABC News he believed Abdullah would "ultimately be credited with a tremendous saving of many, many lives, including many children."

The other two victims were identified as a shopkeeper and his friend. Both were staff members connected to the Islamic school on the center's grounds. Authorities have not yet publicly released all of their names, pending notification of next of kin.

Who Were the Suspects

Two senior law enforcement officials and a federal law enforcement official identified the shooters as 17-year-old Cain Clark and 18-year-old Caleb Vazquez. Both were from San Diego. Clark had been attending James Madison High School virtually.

Here's what makes the timeline even more painful. About two hours before the shooting, Clark's mother called police to report that her son was suicidal, had gone missing, and had taken several firearms from their home along with her car. She also told authorities that he was with another individual who was wearing camouflage clothing and that he had left a note behind. Police initially classified the call as a "runaway juvenile" situation and began searching.

As investigators worked to locate the two teenagers, they learned of Clark's ties to Madison High School and alerted school police. But by the time officers were closing in, the attack at the mosque had already begun.

Evidence of Hate

Investigators found anti-Islamic writing inside the BMW where the suspects died. A suicide note left by one of the shooters reportedly contained writings about racial pride. Hate speech was also found written directly on one of the firearms used in the attack.

Chief Wahl was direct about how the department is treating the case. "Because of the Islamic centre location, we are considering this a hate crime until it's not," he said during the press conference. He added that there was "definitely hate rhetoric that was involved." The San Diego chapter of the Council on American-Islamic Relations issued a statement strongly condemning the attack and noting that "hate speech can lead to hate crimes."

Law enforcement executed search warrants as part of their ongoing investigation into how and why the shooting happened. The FBI's San Diego field office deployed special agents, task force officers, evidence response personnel, and victim specialists to assist local police.

A Nine-Year-Old in a Closet

The Islamic Center of San Diego had already taken security seriously before Monday. The facility had bulletproof windows, a perimeter fence, security cameras, and a full-time security guard. Those measures, along with Abdullah's quick thinking, are the reasons why the death toll wasn't higher.

But numbers don't capture what Monday was actually like for the people inside. A nine-year-old student at Bright Horizon Academy told Reuters that he hid in a closet with his classmates and teachers during the shooting. Photos showed children being evacuated from the area afterward, walking in lines with adults guiding them to safety. Every child present at the school was reported safe.

Imam Hassane addressed reporters and said the center had "never experienced a tragedy like this before." He described the ICSD as a place for people, including non-Muslims, to come together. He sent prayers to all affected families and places of worship.

The Response From Officials

California Governor Gavin Newsom said he and his wife were "horrified by today's violent attack," adding that "worshippers anywhere should not have to fear for their lives." President Trump said he had been briefed on the situation, called it "terrible," and said he would be "looking at it very strongly."

San Diego Mayor Todd Gloria told ABC News that the city immediately increased patrols around religious sites across the board, including Muslim, Jewish, and other faith communities. The city planned to maintain that heightened security posture going forward.

In New York City, the NYPD stated there was no known connection to the city or any specific threats against NYC houses of worship but announced increased officer deployments to mosques out of caution. It's a pattern that plays out after every attack like this. One city bleeds and a dozen others tighten up.

The Mosque Goes Dark

The Islamic Center of San Diego announced it would be closed until further notice. In a statement, the center called Monday "an extremely painful and traumatic day" for its congregation, students, and staff. It expressed gratitude to first responders and said counseling resources would be made available to those affected.

By Tuesday morning, a memorial had already begun forming in front of the center. Flowers were placed at the gate. People showed up just to stand there, to be present, to make it clear that what happened wasn't going to go unnoticed.

The ICSD is San Diego County's largest mosque. It serves hundreds of families. It runs a school. It opens its doors to the broader community. On Monday, two teenagers decided that made it a target.

What Comes Next

The FBI and San Diego police are still working through the investigation. Search warrants have been executed. The evidence found in the suspects' vehicle, including the anti-Islamic writing and the suicide note referencing racial pride, will be central to establishing the official motive, though the picture is already pretty clear to most people paying attention.

The identities of all three victims are expected to be released in the coming days. For now, the community is left with the weight of what happened and the knowledge that it could have been so much worse. A security guard named Amin Abdullah, a father of eight, made sure of that. He saw what was coming and he used whatever time he had left to warn the people inside. The doors got locked. The kids got hidden. And he didn't make it out.

The investigation continues, and the mosque remains closed. For a community that built bulletproof windows and hired armed security because they knew something like this was possible, Monday was the day those fears became real.