{"id":38385,"date":"2020-10-14T00:43:16","date_gmt":"2020-10-14T00:43:16","guid":{"rendered":"https:\/\/one.sightlinemg.com\/militarytimes\/uncategorized\/2020\/10\/14\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\/"},"modified":"2026-08-08T20:32:41","modified_gmt":"2026-08-08T20:32:41","slug":"commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/militarytimes\/news\/2020\/10\/14\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\/","title":{"rendered":"Commander fired after Marine Corps AAV accident that killed 9"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Lt. Col. Michael Regner, commander of the unit involved in July\u2019s <a href=\"https:\/\/www.marinecorpstimes.com\/news\/your-marine-corps\/2020\/07\/31\/what-we-know-about-thursdays-aav-accident\/\" target=_blank>amphibious assault vehicle<\/a> accident, was relieved Tuesday of his command by Lt. Gen. Karsten S. Heckl, commanding general, I Marine Expeditionary Force, the Marine Corps said.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regner, the former commander of Battalion Landing Team 1\/4 with the 15th Marine Expeditionary Unit, was relieved Tuesday \u201cdue to a loss in trust and confidence in his ability to command as a result of the assault amphibious vehicle mishap that took place off the coast of Southern California July 30, 2020,\u201d a Marine Corps press release said.<\/p>\n\n\n\t<aside class=\"smg-interstitial-link wp-block-smg-interstitial-link\">\n\t\t<a href=\"https:\/\/one.sightlinemg.com\/marinecorpstimes\/news\/your-marine-corps\/2020\/08\/06\/a-look-at-the-lives-of-the-8-marines-sailor-lost-in-sunken-amphibious-assault-vehicle\/\" class=\"smg-interstitial-link__inner\">\n\t\t\t\t\t\t\t<div class=\"smg-interstitial-link__media\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/one.sightlinemg.com\/wp-content\/uploads\/2026\/08\/Baltierra-main.jpg.jpg?w=300\" class=\"smg-interstitial-link__image wp-post-image\" alt=\"\" \/>\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"smg-interstitial-link__content\">\n\t\t\t\t<span class=\"smg-interstitial-link__kicker\">Related<\/span>\n\t\t\t\t<h3 class=\"smg-interstitial-link__title\">A look at the lives of the 8 Marines, sailor lost in sunken amphibious assault vehicle<\/h3>\n\t\t\t\t\t\t\t\t\t<p class=\"smg-interstitial-link__excerpt\">The crew of the AAV was able to escape and all the service members who died were in the rear compartment used to transport troops, a Marine spokesman said.<\/p>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/a>\n\t<\/aside>\n\t\n\n\n<p class=\"wp-block-paragraph\">The AAV involved in the incident was returning to the amphibious transport dock Somerset after conducting a training raid at San Clemente Island, California, when it \u201crapidly sank\u201d in about 1,500 meters of water with 15 Marines and one sailor on board.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Half the Marines were able to escape the vehicle, but one, Lance Cpl. Guillermo S. Perez, a 19-year-old from New Braunfels, Texas, was pronounced dead on the scene, while two other Marines were rushed to the hospital, <a href=\"https:\/\/www.marinecorpstimes.com\/news\/your-marine-corps\/2020\/08\/08\/marine-aav-successfully-recovered-with-all-8-missing-service-members-on-board\/\" target=_blank>Marine Corps Times previously reported.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.marinecorpstimes.com\/news\/your-marine-corps\/2020\/08\/03\/here-are-the-names-of-the-marine-killed-and-those-presumed-dead-after-aav-accident\/\">Still onboard the AAV<\/a> when it sank were Pfc. Bryan J. Baltierra, 18, of Corona, California, a rifleman, Lance Cpl. Marco A. Barranco, 21, of Montebello, California, a rifleman, Pfc. Evan A. Bath, 19, of Oak Creek, Wisconsin, a rifleman, U.S. Navy Hospitalman Christopher Gnem, 22, of Stockton, California, a hospital corpsman, Pfc. Jack Ryan Ostrovsky, 20, of Bend, Oregon, a rifleman, Cpl. Wesley A. Rodd, 22, of Harris, Texas, a rifleman, Lance Cpl. Chase D. Sweetwood, 18, of Portland, Oregon, a rifleman and Cpl. Cesar A. Villanueva, 21, of Riverside, California, a rifleman.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The sinking was the deadliest single training accident in the history of the AAV, <a href=\"https:\/\/www.marinecorpstimes.com\/news\/your-marine-corps\/2020\/08\/21\/julys-accident-that-killed-9-is-the-deadliest-aav-incident-in-marine-corps-history\/\" target=_blank>Marine Corps Times previously reported. <\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The bodies of the deceased eight service members were <a href=\"https:\/\/www.marinecorpstimes.com\/news\/your-marine-corps\/2020\/08\/04\/corps-locates-sunken-aav-with-remains-of-missing-marines-on-board\/\" target=_blank>recovered with the vehicle. <\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cAlthough the Command Investigation has compiled a substantial amount of information and data which formed the basis for Heckl\u2019s decision, it is still ongoing as the Marine Corps continues to investigate, assess all relevant information, and take appropriate actions,\u201d the press release said.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lt. Col. Michael Regner, commander of the unit involved in July\u2019s amphibious assault vehicle accident, was relieved of his job Tuesday.<\/p>\n","protected":false},"author":7,"featured_media":42540,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_meta-robots-noindex":"","_yoast_wpseo_meta-robots-nofollow":"","_yoast_wpseo_canonical":"","_acf":"","_yoast_wpseo_primary_category":69,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_smg_distribution_targets":[]},"categories":[15],"tags":[],"coauthors":[3287],"class_list":["post-38385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":{"subheadline":"","legacy_arc_id":"TQM5LU44SBF6JEGLC4HVU23WSI","arc_canonical_url":"\/news\/your-marine-corps\/2020\/10\/13\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\/","remove_feature_photo":false,"is_sponsored":false,"subtype":"","redirect_url":"","disable_inline_ads":false,"native_logo_pretext":"Presented By:"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Commander fired after Marine Corps AAV accident that killed 9 - Military Times<\/title>\n<meta name=\"description\" content=\"Lt. Col. Michael Regner, commander of the unit involved in July\u2019s amphibious assault vehicle accident, was relieved of his job Tuesday.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Commander fired after Marine Corps AAV accident that killed 9\" \/>\n<meta property=\"og:description\" content=\"Lt. Col. Michael Regner, commander of the unit involved in July\u2019s amphibious assault vehicle accident, was relieved of his job Tuesday.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/one.sightlinemg.com\/militarytimes\/news\/2020\/10\/14\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\/\" \/>\n<meta property=\"og:site_name\" content=\"Military Times\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-14T00:43:16+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-08T20:32:41+00:00\" \/>\n<meta name=\"author\" content=\"Philip Athey\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Philip Athey\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\n\t    \"@context\": \"https:\\\/\\\/schema.org\",\n\t    \"@graph\": [\n\t        {\n\t            \"@type\": \"Article\",\n\t            \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/#article\",\n\t            \"isPartOf\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/\"\n\t            },\n\t            \"author\": {\n\t                \"name\": \"migration\",\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/#\\\/schema\\\/person\\\/cc76c831bb37a926738c8391fca7a3b1\"\n\t            },\n\t            \"headline\": \"Commander fired after Marine Corps AAV accident that killed 9\",\n\t            \"datePublished\": \"2020-10-14T00:43:16+00:00\",\n\t            \"dateModified\": \"2026-08-08T20:32:41+00:00\",\n\t            \"mainEntityOfPage\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/\"\n\t            },\n\t            \"wordCount\": 347,\n\t            \"commentCount\": 0,\n\t            \"publisher\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/#organization\"\n\t            },\n\t            \"image\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/#primaryimage\"\n\t            },\n\t            \"thumbnailUrl\": \"https:\\\/\\\/one.sightlinemg.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/5517471.jpg.jpg\",\n\t            \"articleSection\": [\n\t                \"News\"\n\t            ],\n\t            \"inLanguage\": \"en-US\",\n\t            \"potentialAction\": [\n\t                {\n\t                    \"@type\": \"CommentAction\",\n\t                    \"name\": \"Comment\",\n\t                    \"target\": [\n\t                        \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/#respond\"\n\t                    ]\n\t                }\n\t            ]\n\t        },\n\t        {\n\t            \"@type\": \"WebPage\",\n\t            \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/\",\n\t            \"url\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/\",\n\t            \"name\": \"Commander fired after Marine Corps AAV accident that killed 9 - Military Times\",\n\t            \"isPartOf\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/#website\"\n\t            },\n\t            \"primaryImageOfPage\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/#primaryimage\"\n\t            },\n\t            \"image\": {\n\t                \"@id\": \"https:\\\/\\\/one.sightlinemg.com\\\/militarytimes\\\/news\\\/2020\\\/10\\\/14\\\/commander-of-marine-unit-involved-in-aav-accident-that-killed-9-relieved\\\/#primaryimage\"\n\t            },\n\t            \"thumbnailUrl\": \"https:\\\/\\\/one.sightlinemg.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/5517471.jpg.jpg\",\n\t            \"datePublished\": \"2020-10-14T00:43:16+00:00\",\n\t            \"dateModified\": \"2026-08-08T20:32:41+00:00\",\n\t            \"description\": \"Lt. 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