San Diego Mosque Shooting: Lessons in Security and Skill

On Monday, May 18, 2026, two attackers opened fire outside the Islamic Center of San Diego, the largest mosque in the county. Three adult men were killed before the attackers fled the scene and were later found dead in a nearby car from what police describe as self-inflicted gunshot wounds.

The shooting started around 11:43 a.m. local time at the Center's campus on Eckstrom Avenue in the Clairemont neighborhood. The Center also houses Bright Horizon Academy, a pre-K through 12th grade Islamic school with more than 300 students across its two campuses.

San Diego Police Chief Scott Wahl said responding officers found three victims dead outside the Center when they arrived four minutes after the first call. The two attackers — both teenagers, ages 17 and 18 — were located shortly after in a vehicle near the scene. Police are treating the attack as a hate crime, and investigators have reported finding hate rhetoric and possible anti-Islamic writings in the suspects' car.

One of the men killed was Amin Abdullah, the Center's security guard and a father of eight. According to a Tuesday update from the San Diego Police Department, the two attackers walked past Abdullah at his post, likely unaware he was even there. Abdullah recognized the threat, engaged the attackers with gunfire, and put out the call over his radio as the gunfight continued. Police said his engagement delayed and deterred the attackers from pushing deeper into the facility — into the areas where more than a dozen children and school staff ultimately remained safe. Abdullah died in that exchange of fire. A fundraiser organized for his family had topped $2 million by Tuesday afternoon.

The two other victims were identified by CAIR San Diego as Mansour Kaziha, who managed the mosque store, and Nader Awad, who is credited with helping save additional lives during the attack. All students, teachers, and school staff inside the building were evacuated safely.

Hours before the shooting, the mother of one of the attackers reportedly called police to report her son missing along with three firearms from the home. She told officers he was suicidal and traveling with another person, both dressed in camouflage. Officers were still in the area talking with her when the active-shooter call came in at the mosque about a mile away.

The FBI is assisting the investigation. The Center remains closed until further notice.

Preparation isn't paranoia

Before we get into the harder part, this is worth sitting with.

The Islamic Center of San Diego didn't treat security as an afterthought. According to a 2022 local broadcast report, the Center had installed bulletproof windows, a perimeter fence, a wall around the playground, security cameras, and contracted on-site security. They had clearly considered the possibility that someone might one day target them.

That's not paranoia. That's prudence. Houses of worship in this country have been attacked enough times — Tree of Life, Mother Emanuel, Sutherland Springs — that any congregation pretending it can't happen to them is choosing comfort over reality.

Did the Center's preparations stop the attack? No. But they may well have shaped how it ended. We don't know the full sequence yet — what doors were locked, what cameras flagged, what training staff had drilled — but we do know more than a dozen kids and staff walked out of that building with police. That doesn't happen by accident.

If you're part of a congregation, a small business, or anywhere else people gather, this is the part to think about. The question isn't whether security measures could ever matter where you are. It's whether you'll do anything about them before something forces your hand.

Skill and tactics still decide fights

Now the harder part.

Look at the sequence police described, because every part of it is worth thinking about. The attackers walked past Abdullah without seeing him. He saw them first. He recognized the threat and engaged before they could push deeper into the building. The suspects returned fire. He returned fire under fire. He got the call out over his radio while the gunfight was still going. He absorbed the attention of two armed attackers and made them deal with him instead of moving on to the school and the people inside.

By any honest framework, that is a textbook armed-defender response. Observe before being observed. Take the initiative. Engage. Communicate. Buy time and deny ground.

He still didn't make it home.

I want to be careful here. I don't know what platform he was running, how recent his training was, what cover and angles were available, or how the geometry of the building played out. Anyone speculating about what he could have done differently is probably doing it without the facts. He may have done everything right and still gotten shot. That happens.

But there's a lesson in this that concealed carriers, security officers, and law enforcement need to hear. We are in a moment when a lot of online content celebrates the cases where lightly-trained or untrained good guys prevail in fights — and the data does support that the armed citizen response works far more often than not. According to an analysis of FBI data, armed citizens succeed at stopping active shooter events about 94% of the time. Those wins are real and worth understanding.

But that's not the whole picture. For every story where the defender prevails, there are stories like this one. Trained people lose fights. Reasonably skilled people lose fights. Sometimes the math — two motivated, armed attackers against one defender, in the open, with no support yet on scene — is stacked against you regardless of what tactical advantages you start with. You don't get to choose when a fight starts. You don't get to choose how many people are in it. You only get to choose what you've put in the bank before it begins.

This is why training matters — not as a hobby, not as a checkbox, but as the thing that loads the dice in your favor when nothing else will. Movement, draw stroke under stress, use of cover, target discrimination, fighting at distance and inside arm's length, managing multiple threats, communicating while still in the fight. The fundamentals you build now are the only things you'll have access to later, and even all of them stacked together don't guarantee a win.

The honest version of this is uncomfortable. Sometimes the right person, doing the right things, in the right place, still doesn't make it home. That doesn't make the training pointless. It makes it more important. The alternative — being unprepared, undertrained, and unwilling to face that reality — is worse.

The takeaway

Three things to carry away from this one.

First, if you have any influence over how your community, your workplace, or your house of worship handles physical security, push on it now. Hardening, cameras, trained staff, evacuation plans, the boring stuff. The Islamic Center of San Diego is the case study for why this matters.

Second, if you carry a firearm for defense or do protective work, treat your training as ongoing maintenance — not a one-time event. The fight you might find yourself in won't care about your last range trip three years ago. Our Rule 4, Round 2 — Preparing to Counter the Active Shooter with a Handgun class on July 16 is built around exactly the kind of skill-under-pressure work this incident is a reminder of.

Third, be honest with yourself about what a gunfight is. It's not a duel where the better-prepared person always wins. The work is what raises your odds — it doesn't guarantee them. Train like it matters anyway.

About Jacob Paulsen

Jacob S. Paulsen is the President of ConcealedCarry.com. For over 20 years Jacob has been involved as a professional in the firearm industry. He values his time as a student as much as his experience as an instructor with a goal to obtain over 40 hours a year of formal instruction. Jacob is a NRA certified instructor & Range Safety Officer, Guardian Pistol instructor and training counselor, Stop The Bleed instructor, Affiliate instructor for Next Level Training, Graduate and certified instructor for The Law of Self Defense, TCCC Certified, and has been a Glock and Sig Sauer Certified Armorer. Jacob is also the creator of The Annual Guardian Conference which is a 3-day defensive handgun training conference.

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