{"id":2594,"date":"2026-05-22T17:42:38","date_gmt":"2026-05-22T17:42:38","guid":{"rendered":"https:\/\/usglobalnews.com\/2026\/05\/22\/one-of-shooters-in-deadly-attack-at-san-diego-mosque-was-previously-flagged-by-fbi\/"},"modified":"2026-05-22T17:42:38","modified_gmt":"2026-05-22T17:42:38","slug":"one-of-shooters-in-deadly-attack-at-san-diego-mosque-was-previously-flagged-by-fbi","status":"publish","type":"post","link":"https:\/\/www.usglobalnews.com\/?p=2594","title":{"rendered":"One of shooters in deadly attack at San Diego mosque was previously flagged by FBI"},"content":{"rendered":"<div style=\"border-color:var(--article-border);background-color:var(--article-inner-background)\" class=\"dcr-wqti5a\">\n<div class=\"dcr-2zxs1v\">\n<div style=\"--grid-area:media\" data-gu-name=\"media\" class=\"dcr-1fnjjtg\">\n<div class=\"dcr-14emo0l\">\n<div class=\"dcr-tr9ye5\">\n<figure id=\"191bc4c9-0f3d-44a8-8f56-8f5500f842e1\" class=\"dcr-142siv7\">\n<div id=\"img-1\" class=\"dcr-1t8m8f2\"><img decoding=\"async\" alt=\"police stand guard outside a mosque, as seen through a fence\" src=\"https:\/\/i.guim.co.uk\/img\/media\/c8d6ea10de696a9e359443eaf54aaeed91acfcc2\/0_0_1620_1081\/master\/1620.jpg?width=465&amp;dpr=1&amp;s=none&amp;crop=none\" width=\"465\" height=\"310.28703703703707\" loading=\"eager\" class=\"dcr-evn1e9\"><span class=\"dcr-v822l1\"><\/p>\n<div class=\"dcr-gup2gr\">\n<div class=\"dcr-fntg6k\"><label for=\"the-checkbox\" class=\"dcr-1xgwz8b\"><\/label> <\/p>\n<div id=\"the-caption\"><figcaption data-spacefinder-role=\"inline\" class=\"dcr-1os51wo\"><span class=\"dcr-hvsf4t\"><\/span><span class=\"dcr-1qvd3m6\">San Diego police officers stand guard a day after a shooting at the Islamic Center of San Diego, California, on 19 May.<\/span> Photograph: Zoe Meyers\/AFP\/Getty Images<\/figcaption><\/div>\n<\/div>\n<\/div>\n<p><\/span><a href=\"#img-1\" data-ignore=\"global-link-styling\" class=\"open-lightbox dcr-13fd1ms\" aria-hidden=\"true\"><button data-element-id=\"191bc4c9-0f3d-44a8-8f56-8f5500f842e1\" type=\"button\" class=\"open-lightbox dcr-4tmywn\" aria-haspopup=\"dialog\"><span class=\"dcr-194i6pr\">View image in fullscreen<\/span><\/button><\/a><\/div>\n<p><span class=\"dcr-n4pnam\"><figcaption data-spacefinder-role=\"inline\" class=\"dcr-1hdkqum\"><span class=\"dcr-hvsf4t\"><\/span><span class=\"dcr-1qvd3m6\">San Diego police officers stand guard a day after a shooting at the Islamic Center of San Diego, California, on 19 May.<\/span> Photograph: Zoe Meyers\/AFP\/Getty Images<\/figcaption><\/span><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"--grid-area:border\" data-gu-name=\"border\" class=\"dcr-1fnjjtg\"><\/div>\n<div style=\"--grid-area:headline\" data-gu-name=\"headline\" class=\"dcr-1fnjjtg\">\n<div class=\"dcr-14emo0l\">\n<div class=\"dcr-1aqe7zu\">\n<h1 class=\"dcr-1k1a1x\">One of shooters in deadly attack at San Diego mosque was previously flagged by FBI<\/h1>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"--grid-area:standfirst\" data-gu-name=\"standfirst\" class=\"dcr-1fnjjtg\">\n<div class=\"dcr-15in7js\">\n<p>Officials seized guns from Caleb Vazquez\u2019s father last year amid alarm over teen\u2019s views on mass shooters and Nazism<\/p>\n<\/div>\n<\/div>\n<div style=\"--grid-area:body\" data-gu-name=\"body\" class=\"dcr-kn9unn\">\n<div class=\"dcr-1a4fred\">\n<div id=\"maincontent\" class=\"dcr-ydnaza\">\n<div class=\"article-body-commercial-selector article-body-viewer-selector dcr-1c9t5u6\">\n<p class=\"dcr-130mj7b\">One of the two white supremacist shooters who <a href=\"https:\/\/www.theguardian.com\/us-news\/2026\/may\/19\/san-diego-mosque-shooting-reaction\" data-link-name=\"in body link\">attacked a mosque<\/a> in <a href=\"https:\/\/www.theguardian.com\/us-news\/california\" data-link-name=\"in body link\">California<\/a> on Monday and <a href=\"https:\/\/www.theguardian.com\/us-news\/2026\/may\/18\/active-shooter-report-san-diego-islamic-center\" data-link-name=\"in body link\">killed<\/a> three people had already been on law enforcement officials\u2019 radar, according to US media reports.<\/p>\n<p class=\"dcr-130mj7b\">Local officials were so alarmed by Caleb Vazquez\u2019s idolization of mass shooters and Nazism that they seized his father\u2019s guns a year before the shooting, the New York Times <a href=\"https:\/\/www.nytimes.com\/2026\/05\/21\/us\/san-diego-mosque-shooter-guns.html\" data-link-name=\"in body link\">reports<\/a>. Similarly, Bloomberg <a href=\"https:\/\/www.bloomberg.com\/news\/articles\/2026-05-21\/san-diego-mosque-shooting-suspect-was-previously-flagged-by-fbi?embedded-checkout=true\" data-link-name=\"in body link\">reports<\/a> that Vazquez had already been flagged by the FBI as a \u201cpotential threat\u201d last year.<\/p>\n<p class=\"dcr-130mj7b\">Eighteen-year-old Vazquez and his friend, Cain Clark, 17, attacked the Islamic Center of San Diego earlier this week and killed three men, including a security guard who <a href=\"https:\/\/www.theguardian.com\/us-news\/2026\/may\/20\/security-guard-san-diego-mosque-attack\" data-link-name=\"in body link\">exchanged gunfire<\/a> with the attackers and prevented them from reaching 140 schoolchildren. The two <a href=\"https:\/\/www.theguardian.com\/us-news\/2026\/may\/19\/san-diego-mosque-shooting\" data-link-name=\"in body link\">shooters<\/a> then died from self-inflicted gunshot wounds in their getaway car.<\/p>\n<p class=\"dcr-130mj7b\">The Associated Press <a href=\"https:\/\/apnews.com\/article\/islamic-center-san-diego-shooting-mosque-hate-d81d87793aa3eea836d45a9d5b1f297b\" data-link-name=\"in body link\">reported<\/a> this week that the two shooters were radicalized online, where they first met, and shared white supremacist and pro-Nazi views. In addition to calling for Muslims to be \u201cexterminated\u201d, the pair also expressed hatred towards Jewish people, the LGBTQ+ community, Black people and women.<\/p>\n<figure id=\"33fad85c-835c-42c6-b53f-7713301ba45a\" data-spacefinder-role=\"richLink\" data-spacefinder-type=\"model.dotcomrendering.pageElements.RichLinkBlockElement\" class=\"dcr-47fhrn\">\n<div data-print-layout=\"hide\" data-link-name=\"rich-link-4 | 4\" data-component=\"rich-link\" data-name=\"placeholder\" class=\"dcr-1kyw41h\">\n<div data-format-theme=\"5\" data-format-design=\"0\" data-format-display=\"0\" class=\"dcr-1ljij2n\"><a href=\"https:\/\/www.theguardian.com\/us-news\/2026\/may\/22\/islamic-center-of-san-diego-shooting-aftermath\" class=\"dcr-1m887w9\"><\/p>\n<div class=\"dcr-ut4tvs\">\n<div class=\"dcr-1h5b6rb\">\n<div class=\"dcr-169d7yv\">San Diego\u2019s Muslim community picks up the pieces after mass shooting: \u2018We\u2019re just your neighbors\u2019<\/div>\n<\/div>\n<div class=\"dcr-eurq8n\">\n<div class=\"dcr-fkf7vq\">Read more<\/div>\n<\/div>\n<\/div>\n<p><\/a><\/div>\n<\/div>\n<\/figure>\n<p class=\"dcr-130mj7b\">Online materials purportedly written by Vazquez and reviewed by the Guardian show he had a far-right and white supremacist \u201c<a href=\"https:\/\/www.theguardian.com\/world\/2017\/may\/11\/accelerationism-how-a-fringe-philosophy-predicted-the-future-we-live-in\" data-link-name=\"in body link\">accelerationist<\/a>\u201d ideology that promoted extreme violence. NPR <a href=\"https:\/\/www.npr.org\/2026\/05\/20\/nx-s1-5828211\/massie-ousted-trump-vance-and-iran-san-diego-mosque-shooting-investigation\" data-link-name=\"in body link\">reported<\/a> the San Diego shooting shared alarming <a href=\"https:\/\/www.theguardian.com\/us-news\/2026\/may\/21\/san-diego-mosque-shooting-violence\" data-link-name=\"in body link\">similarities<\/a> with the 2019 Christchurch mosque <a href=\"https:\/\/www.theguardian.com\/world\/christchurch-shooting\" data-link-name=\"in body link\">massacre<\/a> in New Zealand that killed 51 people.<\/p>\n<p class=\"dcr-130mj7b\">Vazquez was already on law enforcement\u2019s radar, after someone flagged to officials troubling social media posts. In a protective order last year, a police officer wrote that Vazquez was involved in \u201csuspicious behavior\u201d that idolized Nazis and mass shooters, prompting officials to seize Vazquez\u2019s father\u2019s guns. Vazquez had also been placed in an involuntary psychiatric hold, the Times reported.<\/p>\n<p class=\"dcr-130mj7b\">Vazquez\u2019s father and his wife had 26 guns, including pistols, rifles and shotguns in their home. The father wrote in an affidavit that he had voluntarily put the weapons in a storage facility because of concerns about his son. The court ordered him to voluntarily turn over his guns to officials.<\/p>\n<p class=\"dcr-130mj7b\">Officials said that they found at least 30 guns, ammunition and a crossbow at two separate residences after Monday\u2019s attack. It is unclear if the weapons involved in the shooting came from the Vazquez home, since officials said Clark also grew up with guns.<\/p>\n<p class=\"dcr-130mj7b\">After the shooting, the Vazquez family apologized for their son\u2019s actions in a <a href=\"https:\/\/www.sandiegouniontribune.com\/2026\/05\/21\/read-the-full-statement-from-the-family-of-mosque-shooter-caleb-vazquez\/\" data-link-name=\"in body link\">statement<\/a> provided by an attorney, blaming his autism diagnosis and online radicalization. The family said they \u201cstand firmly against the ideology and actions that led to this tragedy\u201d. They also apologized to the families of the three people who were killed.<\/p>\n<p class=\"dcr-130mj7b\">On Monday, both shooters arrived at the Islamic Center of <a href=\"https:\/\/www.theguardian.com\/us-news\/san-diego\" data-link-name=\"in body link\" data-component=\"auto-linked-tag\">San Diego<\/a> and tried to barge inside, prompting a security guard to open fire and forcing them back outside. As the three engaged in gunfire, the guard called for a lockdown.<\/p>\n<p class=\"dcr-130mj7b\">The shooters were able to enter the lobby and fatally shot the guard, but were unable to reach anyone in the mosque\u2019s rooms because they were emptied during the lockdown. The shooters then exited into the parking lot and fatally shot two other men who worked with the mosque. The men had drawn the attackers away from the building, officials said this week.<\/p>\n<p class=\"dcr-130mj7b\">The mosque\u2019s imam said this week that the community had been the subject of hate mail and messages in the past.<\/p>\n<\/div>\n<\/div>\n<div data-print-layout=\"hide\" class=\"dcr-qxqnsy\"><span class=\"dcr-1rq3vad\">Explore more on these topics<\/span><\/p>\n<div class=\"dcr-1dzx48f\">\n<ul class=\"dcr-1rrvs2w\">\n<li class=\"dcr-hj8byr\"><a href=\"\/us-news\/san-diego-mosque-shooting\" class=\"dcr-1gwziyt\">San Diego mosque shooting<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/us-news\/fbi\" class=\"dcr-1gwziyt\">FBI<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/world\/gun-crime\" class=\"dcr-1gwziyt\">Gun crime<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/us-news\/us-crime\" class=\"dcr-1gwziyt\">US crime<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/us-news\/san-diego\" class=\"dcr-1gwziyt\">San Diego<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/us-news\/california\" class=\"dcr-1gwziyt\">California<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/us-news\/west-coast\" class=\"dcr-1gwziyt\">West Coast<\/a><\/li>\n<li class=\"dcr-hj8byr\"><a href=\"\/tone\/news\" class=\"dcr-1gwziyt\">news<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"dcr-nu129i\"><a href=\"mailto:?subject=One%20of%20shooters%20in%20deadly%20attack%20at%20San%20Diego%20mosque%20was%20previously%20flagged%20by%20FBI&amp;body=https:\/\/www.theguardian.com\/us-news\/2026\/may\/22\/san-diego-mosque-shooter-pro-nazi-fbi?CMP=share_btn_url\" class=\"dcr-125qj9d\">Share<\/a><\/p>\n<div class=\"dcr-zhx6xs\"><a data-link-name=\"meta-syndication-article\" href=\"https:\/\/syndication.theguardian.com\/?url=https%3A%2F%2Fwww.theguardian.com%2Fus-news%2F2026%2Fmay%2F22%2Fsan-diego-mosque-shooter-pro-nazi-fbi&amp;type=article&amp;internalpagecode=us-news\/2026\/may\/22\/san-diego-mosque-shooter-pro-nazi-fbi\" target=\"_blank\" rel=\"noreferrer\" title=\"Reuse this content\" class=\"dcr-14rjinq\">Reuse this content<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"--grid-area:right-column\" data-gu-name=\"right-column\" class=\"dcr-1h2hraq\">\n<div class=\"dcr-tn16h9\">\n<section class=\"dcr-1hko8ef\"><\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>San Diego police officers stand guard a day after a shooting at the Islamic Center of San Diego,<\/p>\n","protected":false},"author":0,"featured_media":2596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-2594","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-world-news"],"_links":{"self":[{"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=\/wp\/v2\/posts\/2594","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2594"}],"version-history":[{"count":0,"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=\/wp\/v2\/posts\/2594\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=\/wp\/v2\/media\/2596"}],"wp:attachment":[{"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.usglobalnews.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}