{"id":440015,"date":"2026-08-22T02:04:19","date_gmt":"2026-08-22T02:04:19","guid":{"rendered":"https:\/\/www.newsbeep.com\/us-ca\/440015\/"},"modified":"2026-08-22T02:04:19","modified_gmt":"2026-08-22T02:04:19","slug":"21-year-old-woman-killed-in-southern-california-street-racing-crash-brother-among-2-arrested","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us-ca\/440015\/","title":{"rendered":"21-year-old woman killed in Southern California street racing crash; brother among 2 arrested"},"content":{"rendered":"<p class=\"mb-4 text-lg md:leading-8 break-words\">A 21-year-old woman was killed in a violent crash during a street race in Mission Viejo Thursday night that allegedly involved her younger brother, according to Orange County authorities.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Not only did the 21-year-old woman lose her life, but her younger brother, who was allegedly driving a different car, is now accused of being partly responsible for her death.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">On Thursday night at approximately 9:41 p.m., deputies responded to the area near Los Alisos Boulevard and Mustang Run regarding a solo vehicle crash.<\/p>\n<p><img alt=\"Mission Viejo racing crash scene video\" loading=\"lazy\" width=\"960\" height=\"540\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/08\/https:\/\/media.zenfs.com\/en\/ktla_articles_362\/6305fd8d6b62031c7905dbb4b8f39de5.jpg\"\/><\/p>\n<p>Deputies respond to a solo vehicle crash in Mission Viejo, Calif. on Thursday, August 20, 2026. (County News)<\/p>\n<p><img alt=\"Mission Viejo racing crash scene video\" loading=\"lazy\" width=\"960\" height=\"540\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/08\/https:\/\/media.zenfs.com\/en\/ktla_articles_362\/d5fa2c4c2b63f6b52e1e83aeebe571be.jpg\"\/><\/p>\n<p>Deputies respond to a solo vehicle crash in Mission Viejo, Calif. on Thursday, August 20, 2026. (County News)<\/p>\n<p><img alt=\"Mission Viejo racing crash scene video\" loading=\"lazy\" width=\"960\" height=\"540\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/08\/https:\/\/media.zenfs.com\/en\/ktla_articles_362\/7b58e4c97776c0a4c5c35c78ae1389a1.jpg\"\/><\/p>\n<p>Deputies respond to a solo vehicle crash in Mission Viejo, Calif. on Thursday, August 20, 2026. (County News)<\/p>\n<p><img alt=\"Mission Viejo racing crash scene video\" loading=\"lazy\" width=\"960\" height=\"540\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/08\/https:\/\/media.zenfs.com\/en\/ktla_articles_362\/f932a355134c0112290482d903a8c885.jpg\"\/><\/p>\n<p>Deputies respond to a solo vehicle crash in Mission Viejo, Calif. on Thursday, August 20, 2026. (County News)<\/p>\n<p><img alt=\"Mission Viejo racing crash scene video\" loading=\"lazy\" width=\"960\" height=\"540\" decoding=\"async\" data-nimg=\"1\" class=\"rounded-lg\" style=\"color:transparent\" src=\"https:\/\/www.newsbeep.com\/us-ca\/wp-content\/uploads\/2026\/08\/https:\/\/media.zenfs.com\/en\/ktla_articles_362\/d57564b0ccfb83d806d22d514dd43575.jpg\"\/><\/p>\n<p>Deputies respond to a solo vehicle crash in Mission Viejo, Calif. on Thursday, August 20, 2026. (County News)<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Investigators said two Inifinitis were street racing when one of the cars went off the road and into a tree.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">A female victim, identified as 21-year-old Shalia Deciderio of Rancho Santa Margarita, was pronounced dead at the scene.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">The driver of that vehicle was transported to the hospital, where he is currently in critical but stable condition. He&#8217;s been identified as 20-year-old Jaime Rojas of Mission Viejo.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">To add more pain for Deciderio&#8217;s family, the driver of the other car Rojas was allegedly racing at the time was identified as Deciderio&#8217;s younger brother, 20-year-old Aiden Deciderio. He remained at the scene following the crash.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Now he and Rojas are both facing potential charges of vehicular manslaughter with gross negligence in Shalia Deciderio&#8217;s death.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Aiden Deciderio was arrested and booked Friday morning, and the other driver is expected to be booked after he&#8217;s released from the hospital.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">KTLA&#8217;s Chip Yost contributed to this report.<\/p>\n<p class=\"mb-4 text-lg md:leading-8 break-words\">Copyright 2026 Nexstar Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.<a data-ylk=\"slk:For the latest news, weather, sports, and streaming video, head to KTLA.;elm:context_link;itc:0;sec:content-canvas;\" data-yga=\"{&quot;yLinkElement&quot;:&quot;link&quot;,&quot;yLinkElementType&quot;:&quot;article_link&quot;}\" href=\"https:\/\/ktla.com\" rel=\"noopener noreferrer nofollow\" target=\"_blank\">For the latest news, weather, sports, and streaming video, head to KTLA.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"A 21-year-old woman was killed in a violent crash during a street race in Mission Viejo Thursday night&hellip;\n","protected":false},"author":2,"featured_media":440016,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[7,9,8,88261,13784,611,174478,9878,174477],"class_list":["post-440015","post","type-post","status-publish","format-standard","has-post-thumbnail","category-california","tag-california","tag-california-headlines","tag-california-news","tag-county-news","tag-mission-viejo","tag-orange-county","tag-shalia-deciderio","tag-vehicle-crash","tag-younger-brother"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/440015","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/comments?post=440015"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/posts\/440015\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media\/440016"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/media?parent=440015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/categories?post=440015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-ca\/wp-json\/wp\/v2\/tags?post=440015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}