Campus Alert Archive
UNLV

Gunman kills three faculty members in a campus building before dying in a police shootout

AI-generated · every claim is source-linked
NVactive shooteremergency notificationhigh confidence
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Confirmed Threat

A 67-year-old professor who had been rejected for a position at UNLV opened fire in Beam Hall, 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.

Alerts
5
Response
8 min
Killed
3
Injured
3
Institution
University of Nevada, Las Vegas
Public R1 · NV
All UNLV cases →
~31,000 studentsRebelSAFE Alert
Official alert policy
Read when and how UNLV says it will use RebelSAFE Alert: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

5 messages in sequence · 5 verified verbatim

INITIAL ALERTTwitter/X
Verified verbatim@unlv on X (verbatim raw t.co)160 chars
UPDSouth - UNLV UPD Alert - UNLV University Police responding to confirmed active shooter in BEH. This is not a test. RUN-HIDE-FIGHT. https://www.unlv.edu/info
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
UPDATETwitter/X+6 min
Verified verbatim@unlv on X (verbatim raw t.co)160 chars
UPDSouth - UNLV UPD Alert - UNLV University Police responding to confirmed active shooter in BEH. This is not a test. RUN-HIDE-FIGHT. https://www.unlv.edu/info
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
UPDATETwitter/X+27 min
Verified verbatim@unlv on X (verbatim raw t.co)154 chars
UPDSouth - UNLV UPD Alert - UNLV University Police responding to additional report of shots fired in the Student Union, evacuate the area, RUN-HIDE-FIGHT.
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
UPDATETwitter/X+1h 5m
Verified verbatimLVMPD final investigative report on the December 6, 2023 UNLV shooting, quoting the 12:58 p.m. UNLV message; reproduced by KTNV103 chars
Police ask that you continue to please shelter in place. Police are evacuating buildings one at a time.
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
UPDATETwitter/X+7h 45m
Verified verbatim@unlv on X (verbatim raw t.co)154 chars
UPDSouth - UNLV UPD Alert - UNLV University Police responding to additional report of shots fired in the Student Union, evacuate the area, RUN-HIDE-FIGHT.
'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
Message elements

How the first alert is built

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

UPDSouth - UNLV UPD Alert - UNLV University Police responding to confirmed active shooter in BEH. This is not a test. RUN-HIDE-FIGHT. https://www.unlv.edu/info

  • Sourcepresent25/25

    Final assessment

    All 25 reads agree the source is present; it names University Police as the responding authority.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: Names "University Police" as responding authority.
    2. present: It names "University Police", the responding authority.
    3. present: Names "University Police", the responding authority.
    4. present: It names "University Police", a responding authority.
    5. present: Names "University Police", identifying the responding authority.
    6. present: It names "University Police responding", the responding authority.
    7. present: It names "University Police", the responding authority.
    8. present: Names "University Police" as the responding authority.
    9. present: Names "University Police", the responding authority.
    10. present: It names "University Police" as the responding authority.
    11. present: It names "University Police", the responding authority.
    12. present: Names "University Police" as the responding authority.
    13. present: Names "University Police", the responding authority.
    14. present: It names "University Police" responding, identifying the authority.
    15. present: It names "University Police", the responding authority.
    16. present: Names "University Police" responding, identifying the authority.
    17. present: It references "University Police" responding, an identified agency.
    18. present: It names "University Police", the responding authority.
    19. present: It names "University Police" as the responding authority.
    20. present: It names "University Police" responding, the issuing authority.
    21. present: Names "University Police", the responding authority.
    22. present: Names "University Police" as responding.
    23. present: It names "University Police" as the responding authority.
    24. present: It names "University Police", the responding authority.
    25. present: It names "University Police" as the responding authority.
  • Hazardpresent25/25

    Final assessment

    Unanimous that the hazard is present; it names a report of shots fire in BEH, with the typo preserved.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: Names "shots fire in BEH", a specific hazard (typo preserved).
    2. present: It names "shots fire in BEH", a specific threat (typo preserved).
    3. present: Names "shots fire in BEH", a specific threat (typo preserved).
    4. present: It names "shots fire in BEH", a specific threat (typo preserved).
    5. present: States a "report of shots fire in BEH", a specific threat (typo preserved).
    6. present: It names "shots fire in BEH", a specific threat with preserved typo.
    7. present: It reports "shots fire in BEH", a specific threat (typo preserved).
    8. present: States "report of shots fire in BEH", a specific threat (typo preserved).
    9. present: States "shots fire in BEH", a specific threat (typo preserved).
    10. present: It names "shots fire", a specific threat (typo preserved).
    11. present: It reports "shots fire in BEH", a specific threat with preserved typo.
    12. present: Names "shots fire in BEH", a specific threat (typo preserved).
    13. present: States "report of shots fire in BEH", a specific threat (typo preserved).
    14. present: It states "shots fire in BEH", a specific hazard despite the typo.
    15. present: It names "shots fire" reported, a specific threat (typo preserved).
    16. present: Names "report of shots fire in BEH", a specific threat (typo preserved).
    17. present: It names "shots fire in BEH", a specific threat.
    18. present: It names "shots fire in BEH", a specific threat (typo preserved).
    19. present: It reports "shots fire in BEH", a specific threat.
    20. present: It reports "shots fire in BEH", a specific named threat with preserved typo.
    21. present: States "report of shots fire in BEH", a specific threat (typo preserved).
    22. present: Names "shots fire", a specific threat.
    23. present: It names "shots fire in BEH", a specific threat (typo preserved).
    24. present: It names "shots fire", a specific threat (typo preserved).
    25. present: It names "shots fire in BEH", a specific threat (typo preserved).
  • Locationpresent25/25

    Final assessment

    All reads agree a location is present, citing the building BEH.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: Locates it "in BEH" (a building).
    2. present: It says "in BEH", a specific building reference.
    3. present: Specifies "BEH", a named building location.
    4. present: It cites "BEH", a specific building.
    5. present: Says "in BEH", a specific building.
    6. present: It says "in BEH", a specific building reference.
    7. present: It specifies "BEH", a specific building.
    8. present: Says "in BEH", a specific building location.
    9. present: Locates it "in BEH".
    10. present: It says "in BEH", a specific building.
    11. present: It names "BEH" as the location.
    12. present: Locates it "in BEH".
    13. present: Says "in BEH", a specific building location.
    14. present: It locates it "in BEH".
    15. present: It cites "BEH", a specific building.
    16. present: Says it is "in BEH", a specific building.
    17. present: It locates it "in BEH", a specific building.
    18. present: It locates it "in BEH", a specific building.
    19. present: It locates it "in BEH", a named building.
    20. present: It locates it "in BEH", a specific building.
    21. present: Says "in BEH", a specific building, and "evacuate to a safe area".
    22. present: Specifies "in BEH".
    23. present: It locates it "in BEH".
    24. present: It names "BEH", a specific building.
    25. present: It locates it "in BEH", a campus building.
  • Guidancepresent25/25

    Final assessment

    Unanimous that guidance is present, instructing recipients to evacuate to a safe area using RUN-HIDE-FIGHT.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. present: Instructs "evacuate to a safe area, RUN-HIDE-FIGHT".
    2. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    3. present: Instructs "evacuate to a safe area, RUN-HIDE-FIGHT".
    4. present: It instructs "evacuate to a safe area, RUN-HIDE-FIGHT", protective actions.
    5. present: Instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    6. present: It instructs "evacuate to a safe area, RUN-HIDE-FIGHT".
    7. present: It instructs "evacuate to a safe area, RUN-HIDE-FIGHT", protective actions.
    8. present: Instructs "evacuate to a safe area, RUN-HIDE-FIGHT", protective actions.
    9. present: Instructs "evacuate to a safe area, RUN-HIDE-FIGHT".
    10. present: It instructs to "evacuate to a safe area, RUN-HIDE-FIGHT".
    11. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    12. present: Instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    13. present: Instructs "evacuate to a safe area, RUN-HIDE-FIGHT", protective actions.
    14. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    15. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT", protective actions.
    16. present: Instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    17. present: It instructs "evacuate to a safe area, RUN-HIDE-FIGHT".
    18. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    19. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    20. present: It instructs "evacuate to a safe area, RUN-HIDE-FIGHT", protective actions.
    21. present: Instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    22. present: Instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    23. present: It instructs "evacuate to a safe area, RUN-HIDE-FIGHT".
    24. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
    25. present: It instructs recipients to "evacuate to a safe area, RUN-HIDE-FIGHT".
  • Timeabsent0/25

    Final assessment

    All 25 reads agree timing is absent; no clock time, date, or recency cue appears.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. absent: No clock time, date, or recency cue appears in the text.
    2. absent: No clock time, date, or recency word like "now" appears.
    3. absent: No clock time, date, or recency cue such as "now" appears.
    4. absent: No clock time, date, or recency cue is present in the text.
    5. absent: No clock time, date, or recency cue such as "now" or "immediately" appears.
    6. absent: No clock time, date, or recency cue such as "now" or "immediately" appears.
    7. absent: No clock time, date, or recency cue such as "now" appears in the text.
    8. absent: No clock time, date, or recency word such as "now" appears in the text.
    9. absent: No clock time, date, or recency cue appears.
    10. absent: No clock time, date, or recency cue appears in the text.
    11. absent: No clock time, date, or recency cue appears in the text.
    12. absent: No clock time, date, or recency cue appears.
    13. absent: No clock time, date, or recency word appears in the text.
    14. absent: No clock time, date, or recency word such as "now" appears.
    15. absent: No clock time, date, or recency cue such as "now" appears in the text.
    16. absent: No clock time, date, or recency cue appears in the text.
    17. absent: No clock time, date, or recency cue appears in the text.
    18. absent: No clock time, date, or recency cue appears in the text.
    19. absent: No clock time, date, or recency cue such as "now" or "immediately" appears.
    20. absent: No clock time, date, or recency cue such as "now" appears in the text.
    21. absent: No clock time, date, or recency word like "now" appears in the text.
    22. absent: No clock time, date, or recency cue appears in the text.
    23. absent: No clock time, date, or recency cue appears in the text.
    24. absent: No clock time, date, or recency cue appears in the text.
    25. absent: No clock time, date, or recency word such as "now" appears.
  • Impactpresent24/25

    Final assessment

    Present by near-unanimous read (24 of 25): it reports shots fired and directs evacuate with RUN-HIDE-FIGHT, conveying an armed threat with deadly potential to people.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. present: Reports shots fired and directs RUN-HIDE-FIGHT evacuation to a safe area, implying a clear life threat.
    2. present: It reports shots fired and directs RUN-HIDE-FIGHT and evacuation to a safe area, strongly implying a life-threatening armed threat.
    3. present: Shots fired with an order to evacuate to a safe area and Run-Hide-Fight conveys a deadly threat to people.
    4. present: It reports shots fired and instructs evacuation to a safe area with RUN-HIDE-FIGHT, implying a deadly threat to safety.
    5. present: It reports shots fired and orders evacuation to a safe area with RUN-HIDE-FIGHT, conveying threat to safety.
    6. present: It tells people to evacuate to a safe area and use Run Hide Fight, implying lethal danger from the reported shots.
    7. present: Reports shots fired and instructs RUN-HIDE-FIGHT and to evacuate to safety, implying a clear life threat.
    8. present: Reporting shots fired with an order to evacuate to a safe area and Run-Hide-Fight conveys a deadly threat to people.
    9. present: Reports shots fired and instructs to evacuate to a safe area with RUN-HIDE-FIGHT, implying a deadly threat to safety.
    10. present: It reports shots fired and directs people to evacuate to a safe area and RUN-HIDE-FIGHT, implying a serious deadly threat.
    11. present: Ordering evacuation to a safe area and RUN-HIDE-FIGHT for shots fired conveys life-threatening danger requiring escape for safety.
    12. present: Reports shots fired and directs evacuation to a safe area with Run-Hide-Fight, implying a deadly threat.
    13. present: Reports shots fired and directs people to evacuate to a safe area with Run-Hide-Fight, implying a serious threat to life.
    14. present: Directs evacuation and RUN-HIDE-FIGHT for reported shots fired, with the safety directive conveying danger to people.
    15. present: Reports shots fired and instructs evacuation with RUN-HIDE-FIGHT, implying a lethal threat to safety.
    16. present: It instructs people to evacuate to a safe area and run-hide-fight, which paired with shots fired implies a clear threat to life.
    17. present: Reporting shots fired and directing people to evacuate to a safe area with Run-Hide-Fight implies a deadly threat to safety.
    18. present: Ordering people to evacuate to a safe area with Run-Hide-Fight pairs the shooting with explicit danger to safety.
    19. present: Reports shots fired and directs RUN-HIDE-FIGHT and evacuation to safety, conveying a clear armed threat to personal safety.
    20. present: It reports shots fired and directs evacuation to safety with RUN-HIDE-FIGHT, implying a clear threat of harm.
    21. present: Reports shots fired and directs evacuation to a safe area with RUN-HIDE-FIGHT, implying clear danger to safety.
    22. present: It reports shots fired and orders evacuate and Run-Hide-Fight, conveying a serious life threat through that imperative danger framing.
    23. present: Shots fired with instructions to evacuate to a safe area and run-hide-fight implies danger to safety.
    24. absent: This names shots fired and gives evacuate and run-hide-fight guidance but states no specific harm or consequence.
    25. present: Reports shots fired and directs evacuation and RUN-HIDE-FIGHT implying a deadly threat to people.

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

The UNLV 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, 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 after he was killed by police. He was killed by campus police 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.
Analysis

Key Findings

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
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.
Provenance

Sources

  1. Social
    RebelSAFE Twitter/X Account
    twitter.com
    archived copy
  2. Source
    2023 University of Nevada, Las Vegas shooting, Wikipedia
    en.wikipedia.org
    archived copy
  3. News
    Las Vegas Review-Journal coverage
  4. Source
    LVMPD December 6 Shooting Report
    lvmpd.com
    archived copy
  5. national media
    Suspect in UNLV shooting had more than 150 rounds of ammunition: Police - ABC News
    abcnews.com
    archived copy
  6. Official
    @unlv on X
    x.com
    archived copy
  7. Official
    @unlv on X
    x.com
    archived copy
Cite this case

Campus Alert Archive. "University of Nevada, Las Vegas: Gunman kills three faculty members in a campus building before dying in a police shootout." Incident of December 6, 2023. Added April 2026; last updated July 2026. https://campusalertarchive.com/case/unlv-shooting-2023-12-06/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
active-shootertypo-in-alertthis-is-not-a-testrun-hide-fightalert-fatiguefaculty-targetedmulti-location-reportsextended-shelter-in-place2023
Added April 2026Updated July 2026Via ingestion