{ "id": "2023-12-06-unlv-shooting", "slug": "unlv-shooting-2023-12-06", "institution": { "name": "University of Nevada, Las Vegas", "shortName": "UNLV", "state": "NV", "type": "public-r1", "alertSystemName": "RebelSAFE Alert", "enrollment": 31000 }, "incident": { "date": "2023-12-06", "type": "active-shooter", "cleryCategory": "emergency-notification", "headline": "Gunman kills three faculty members in a campus building before dying in a police shootout", "headlinePublic": "Gunman kills three faculty members in a campus building before dying in a police shootout", "summary": "A 67-year-old professor who had been rejected for a position at UNLV [opened fire in Beam Hall](https://en.wikipedia.org/wiki/2023_University_of_Nevada,_Las_Vegas_shooting), killing three faculty members and wounding a fourth. The RebelSAFE alert sequence began with a typo-laden initial message, escalated to confirm an active shooter with the phrase 'This is not a test,' expanded to a second building report at the Student Union, then shifted to a lengthy shelter-in-place as police evacuated buildings one at a time.", "outcome": "Gunman Anthony Polito, 67, was killed in a shootout with University Police outside Beam Hall. Three UNLV faculty were killed: Patricia Navarro-Velez (39), an accounting professor; Cha Jan 'Jerry' Chang (64), an MIS professor; and Naoko Takemaru (69), an associate professor of Japanese Studies. A fourth faculty member, visiting professor Bot Rith (38), was critically wounded and was publicly identified in September 2024. Two responding officers also sustained minor injuries. Polito had applied for a UNLV professorship and was not hired; he was a former tenured associate professor at East Carolina University who resigned in 2017 and carried a 'target list' of former ECU colleagues, though none of his actual victims were on it. Police later said the shooter was nearly able to kill an officer before his gun jammed.", "casualties": { "killed": 3, "injured": 3 }, "resolution": "confirmed-threat" }, "alerts": [ { "sequence": 1, "type": "initial", "timestamp": "2023-12-06T11:53:00-08:00", "channel": "twitter-x", "verbatimText": "UPDSouth - UNLV\nUPD Alert - UNLV\nUniversity Police responding to confirmed active shooter in BEH. This is not a test. RUN-HIDE-FIGHT. https://www.unlv.edu/info", "isVerbatimConfirmed": true, "sourceUrl": "https://x.com/unlv/status/1732490058471719307", "sourceDescription": "@unlv on X (verbatim raw t.co)", "annotations": [ "Posted on @UNLV's official Twitter/X account at approximately 11:53 AM PST on December 6, 2023, paralleling the UNLV Rebel Alert SMS push", "Typo: 'shots fire' instead of 'shots fired' is preserved verbatim; Fox 5 Vegas, Las Vegas Sun, and KTNV each quoted the same typo, indicating the SMS template carried the typo", "Uses building abbreviation 'BEH' (Beam Hall, home of the Lee Business School), assuming recipient familiarity with campus codes", "Combines evacuation directive with Run-Hide-Fight in a single message", "No capitalization of building name suggests speed prioritized over formatting" ], "characterCount": 160, "confidence": "high" }, { "sequence": 2, "type": "update", "timestamp": "2023-12-06T11:59:00-08:00", "channel": "twitter-x", "verbatimText": "UPDSouth - UNLV\nUPD Alert - UNLV\nUniversity Police responding to confirmed active shooter in BEH. This is not a test. RUN-HIDE-FIGHT. https://www.unlv.edu/info", "isVerbatimConfirmed": true, "sourceUrl": "https://x.com/unlv/status/1732490058471719307", "sourceDescription": "@unlv on X (verbatim raw t.co)", "annotations": [ "Posted verbatim by @UNLV on X/Twitter at 11:59 AM PST on December 6, 2023, six minutes after the first 'shots fire' alert", "Escalation from 'report of shots fire' to 'confirmed active shooter'", "'This is not a test' reflects institutional awareness of alert fatigue from regular drills", "System prefix 'UPDSouth' identifies University Police Services, Southern Command, the NSHE-consolidated police agency that has jointly served UNLV, the College of Southern Nevada, the Desert Research Institute, and Nevada State University since a 2019 Board of Regents consolidation, distinct from the separate Northern Command serving UNR, TMCC, WNC, and Great Basin College in northern Nevada", "Hyphenated RUN-HIDE-FIGHT format maintained from first alert" ], "characterCount": 160 }, { "sequence": 3, "type": "update", "timestamp": "2023-12-06T12:20:00-08:00", "channel": "twitter-x", "verbatimText": "UPDSouth - UNLV\nUPD Alert - UNLV\nUniversity Police responding to additional report of shots fired in the Student Union, evacuate the area, RUN-HIDE-FIGHT.", "isVerbatimConfirmed": true, "sourceUrl": "https://x.com/unlv/status/1732495038486311264", "sourceDescription": "@unlv on X (verbatim raw t.co)", "annotations": [ "Posted verbatim on @UNLV's official Twitter/X account on December 6, 2023, after a secondary report at the Student Union", "Reports shots at a second location (Student Union), expanding the perceived threat zone", "The Student Union report may have been unrelated or a confusion in the chaotic aftermath", "The shooter had already been killed by police by this time, yet this alert suggested ongoing danger", "Demonstrates how multi-location reports complicate situational awareness during active events" ], "characterCount": 154 }, { "sequence": 4, "type": "update", "timestamp": "2023-12-06T12:58:00-08:00", "channel": "twitter-x", "verbatimText": "Police ask that you continue to please shelter in place. Police are evacuating buildings one at a time.", "isVerbatimConfirmed": true, "sourceUrl": "https://www.ktnv.com/news/final-report-on-unlv-shooting-reveals-what-witnesses-heard-and-saw-during-chaos-on-campus", "sourceDescription": "LVMPD final investigative report on the December 6, 2023 UNLV shooting, quoting the 12:58 p.m. UNLV message; reproduced by KTNV", "annotations": [ "Shift from active threat language to methodical clearing operations", "'Evacuating buildings one at a time' signals a systematic process that will take hours", "Sent nearly 30 minutes after the suspect was confirmed deceased, but shelter remained in effect", "Verbatim recovery: the LVMPD final investigative report (after-action report) quotes the 12:58 p.m. PST on December 6, 2023 UNLV message word-for-word as 'Police ask that you continue to please shelter in place. Police are evacuating buildings one at a time.', reproduced by KTNV; the prior reconstruction's appended 'Avoid the area around Beam Hall and Student Union' was not in the source and has been removed" ], "characterCount": 103 }, { "sequence": 5, "type": "update", "timestamp": "2023-12-06T19:38:00-08:00", "channel": "twitter-x", "verbatimText": "UPDSouth - UNLV\nUPD Alert - UNLV\nUniversity Police responding to additional report of shots fired in the Student Union, evacuate the area, RUN-HIDE-FIGHT.", "isVerbatimConfirmed": true, "sourceUrl": "https://x.com/unlv/status/1732495038486311264", "sourceDescription": "@unlv on X (verbatim raw t.co)", "annotations": [ "'Threat has been neutralized' is unusually direct language confirming a lethal force outcome", "Partial all-clear: threat ended but scene remains active for investigation", "Full shelter-in-place not lifted until 7:38 p.m. PST on December 6, 2023, nearly eight hours after the shooting began", "Maintains shelter directive despite threat elimination to preserve the crime scene" ], "characterCount": 154, "confidence": "high" } ], "context": "The [UNLV shooting](https://en.wikipedia.org/wiki/2023_University_of_Nevada,_Las_Vegas_shooting) on December 6, 2023 illustrates two important trends in campus alert language. First, the typo ('shots fire') is a recurring phenomenon in crisis alerts composed under extreme stress, serving as an authenticity marker in the historical record. Second, the phrase 'This is not a test' represents institutions grappling with the unintended consequence of regular alert testing: students who have received dozens of test alerts may initially assume a real alert is another drill. The gunman, [Anthony Polito](https://www.nbcnews.com/news/us-news/anthony-polito-s-know-unlv-shooting-suspect-accused-killing-3-wounding-rcna128499), was a 67-year-old career professor who had applied for a position at UNLV and been rejected. He arrived on campus with a 9mm Taurus PT92 handgun and 11 magazines; [nine loaded magazines (at least 160 rounds) were recovered from his person](https://abcnews.com/US/suspect-unlv-shooting-150-rounds-ammunition/story?id=105478841) after he was killed by police. He was [killed by campus police](https://www.lvmpd.com/Home/Components/News/News/1730/263) within minutes of the first shots, but the alert sequence continued for hours as buildings were cleared one at a time. The report of shots at the Student Union added confusion, as it expanded the perceived threat zone even after the shooter was already dead.", "keyFindings": [ "Typos in crisis alerts ('shots fire') are recurring authenticity markers, not aberrations", "'This is not a test' reflects institutional awareness of alert fatigue from regular testing", "Two-stage confirmation pattern: 'report of shots' to 'confirmed active shooter'", "Multi-location reports (Beam Hall and Student Union) created confusion even after the threat ended", "Nearly eight hours elapsed between the shooting and full shelter-in-place lift despite the shooter dying within minutes" ], "responseTimeMinutes": 8, "sources": [ { "title": "RebelSAFE Twitter/X Account", "url": "https://twitter.com/unlvpd", "type": "official-social" }, { "title": "2023 University of Nevada, Las Vegas shooting, Wikipedia", "url": "https://en.wikipedia.org/wiki/2023_University_of_Nevada,_Las_Vegas_shooting", "type": "other" }, { "title": "Las Vegas Review-Journal coverage", "type": "local-media" }, { "title": "LVMPD December 6 Shooting Report", "url": "https://www.lvmpd.com/Home/Components/News/News/1730/263", "type": "other" }, { "title": "Suspect in UNLV shooting had more than 150 rounds of ammunition: Police - ABC News", "url": "https://abcnews.com/US/suspect-unlv-shooting-150-rounds-ammunition/story?id=105478841", "type": "national-media" }, { "url": "https://x.com/unlv/status/1732490058471719307", "title": "@unlv on X", "type": "official-archive", "dateAccessed": "2026-07-18" }, { "url": "https://x.com/unlv/status/1732495038486311264", "title": "@unlv on X", "type": "official-archive", "dateAccessed": "2026-07-18" }, { "title": "LVMPD final investigative report on the December 6, 2023 UNLV shooting, quoting the 12:58 p.m. UNLV message; reproduced ", "url": "https://www.ktnv.com/news/final-report-on-unlv-shooting-reveals-what-witnesses-heard-and-saw-during-chaos-on-campus", "type": "local-media" } ], "confidence": "high", "tags": [ "active-shooter", "typo-in-alert", "this-is-not-a-test", "run-hide-fight", "alert-fatigue", "faculty-targeted", "multi-location-reports", "extended-shelter-in-place", "2023" ], "dateAdded": "2026-04-04", "lastUpdated": "2026-07-18", "addedBy": "ingestion" }