{
  "id": "2025-01-17-uc-san-diego-armed-suspect-lockdown",
  "slug": "uc-san-diego-armed-suspect-lockdown-2025-01-17",
  "institution": {
    "name": "University of California, San Diego",
    "shortName": "UCSD",
    "state": "CA",
    "type": "public-r1",
    "alertSystemName": "Triton Alert",
    "alertPlatform": "Everbridge",
    "enrollment": 42000
  },
  "incident": {
    "date": "2025-01-17",
    "type": "armed-person",
    "cleryCategory": "emergency-notification",
    "resolution": "unfounded",
    "headline": "Report of a woman held against her will prompts a multi-hour lockdown and search",
    "headlinePublic": "Report of a woman held against her will prompts a multi-hour lockdown and search",
    "summary": "On January 17, 2025, [UC San Diego locked down](https://www.nbcsandiego.com/news/local/ucsd-possible-armed-suspect-campus-lockdown/3727236/) the northern portion of its La Jolla campus after San Diego CrimeStoppers received an anonymous call reporting a woman being held against her will. San Diego Police pinged the woman's phone to the area of the [LionTree Arena](https://ucsdguardian.org/2025/01/17/possible-armed-suspect-near-rimac-liontree-arena/) (formerly RIMAC Arena), prompting a multi-hour police search. The suspect was eventually contacted off campus and the all-clear was issued at 1:11 p.m. PST.",
    "outcome": "Suspect contacted off campus by approximately 1:11 p.m. PST. No weapon recovered on campus and no injuries reported. UCSD Police later clarified the incident was not an active shooter situation.",
    "casualties": {
      "killed": 0,
      "injured": 0
    }
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2025-01-17T10:56:00-08:00",
      "channel": "sms",
      "verbatimText": "Possible Armed Suspect. Avoid North Campus. Lock doors and stay inside.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://timesofsandiego.com/education/2025/01/17/uc-san-diego-placed-on-lockdown-during-police-search-for-armed-suspect/",
      "sourceDescription": "Times of San Diego direct quote of the 10:56 a.m. PST Triton Alert / Timely Warning",
      "annotations": [
        "Verbatim text confirmed by direct quotation in Times of San Diego, NBC 7 San Diego, 10News, and Fox 5 San Diego, all reporting the alert exactly as 'Possible Armed Suspect. Avoid North Campus. Lock doors and stay inside.'",
        "RIMAC Arena was renamed LionTree Arena in 2024 following a naming gift; the alert itself did not include the building name",
        "First Triton Alert SMS in the sequence; alarm triggered by a CrimeStoppers tip and cell phone ping rather than a confirmed sighting"
      ],
      "characterCount": 71
    },
    {
      "sequence": 2,
      "type": "update",
      "timestamp": "2025-01-17T12:26:00-08:00",
      "channel": "sms",
      "verbatimText": "",
      "isVerbatimConfirmed": false,
      "sourceUrl": "https://triton.news/2025/01/live-updates-timely-warnings/",
      "sourceDescription": "The Triton live updates page; text reconstructed from its paraphrase that the 12:26 p.m. PST notification confirmed this was not an active shooter situation",
      "annotations": []
    },
    {
      "sequence": 3,
      "type": "all-clear",
      "timestamp": "2025-01-17T13:11:00-08:00",
      "channel": "sms",
      "verbatimText": "ALL CLEAR. The suspect has been contacted off campus. There is no ongoing threat to campus.",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://triton.news/2025/01/live-updates-timely-warnings/",
      "sourceDescription": "The Triton (UCSD student news) live updates page directly quoting the 1:11 p.m. PST Triton Alert all-clear",
      "annotations": [
        "Verbatim text quoted in The Triton's 'Live Updates: Timely Warnings' page; matches the wording reported by NBC 7 San Diego and 10News",
        "All-clear issued approximately 2 hours and 15 minutes after the initial alert",
        "Use of 'contacted off campus' rather than 'arrested' suggests the encounter did not result in immediate criminal charges; University Communications later confirmed neither party was UCSD-affiliated"
      ],
      "characterCount": 91
    }
  ],
  "context": "The January 17, 2025 lockdown began with an anonymous [San Diego CrimeStoppers tip](https://www.10news.com/news/local-news/report-of-possibly-armed-person-at-uc-san-diego-prompts-police-response) claiming a woman was being held against her will. San Diego Police pinged her cell phone to the area of [LionTree Arena](https://ucsdguardian.org/2025/01/17/possible-armed-suspect-near-rimac-liontree-arena/), the multi-purpose recreation and athletics venue on UC San Diego's North Campus. The pinged location triggered a police response and the first [Triton Alert at 10:56 a.m. PST](https://timesofsandiego.com/education/2025/01/17/uc-san-diego-placed-on-lockdown-during-police-search-for-armed-suspect/), which warned of a 'possible armed suspect' and instructed the campus to lock doors and avoid the area. The phrasing 'possible armed suspect' hedges threat certainty rather than using 'reported' or 'confirmed' language. UCSD's January 17 alert sequence reflects a tension between Clery Act timeliness requirements and the reality that initial reports often prove incomplete. The all-clear was issued approximately two hours and fifteen minutes after the first alert, after officers contacted the subject off-campus.",
  "keyFindings": [
    "Cell phone pinging by police can place innocent locations under emergency lockdown when initial reports turn out to be inaccurate",
    "UCSD's mid-incident clarification that this was 'not an active shooter situation' addressed circulating social-media reports",
    "RIMAC Arena had been renamed LionTree Arena in 2024; media coverage referenced both names, though the alert itself did not name the building",
    "The tip-driven nature of this lockdown makes it a useful case study in how anonymous reports can trigger major campus response without any confirmed threat"
  ],
  "sources": [
    {
      "title": "Report of possibly armed person at UCSD prompts campus lockdown (NBC 7 San Diego)",
      "url": "https://www.nbcsandiego.com/news/local/ucsd-possible-armed-suspect-campus-lockdown/3727236/",
      "type": "local-media"
    },
    {
      "title": "North Campus shut-down resolved, armed suspect near RIMAC/LionTree Arena identified (UCSD Guardian)",
      "url": "https://ucsdguardian.org/2025/01/17/possible-armed-suspect-near-rimac-liontree-arena/",
      "type": "student-newspaper"
    },
    {
      "title": "UC San Diego Placed on Lockdown During Police Search for Armed Suspect (Times of San Diego)",
      "url": "https://timesofsandiego.com/education/2025/01/17/uc-san-diego-placed-on-lockdown-during-police-search-for-armed-suspect/",
      "type": "local-media"
    },
    {
      "title": "UPDATE: All clear given following report of possibly armed person on UCSD campus (10News)",
      "url": "https://www.10news.com/news/local-news/report-of-possibly-armed-person-at-uc-san-diego-prompts-police-response",
      "type": "local-media"
    },
    {
      "title": "The Triton live updates page; text reconstructed from its paraphrase that the 12:26 p.m. PST notification confirmed this",
      "url": "https://triton.news/2025/01/live-updates-timely-warnings/",
      "type": "local-media"
    }
  ],
  "confidence": "medium",
  "tags": [
    "armed-person",
    "campus-lockdown",
    "uc-system",
    "california",
    "san-diego",
    "shelter-in-place",
    "unfounded-threat",
    "triton-alert",
    "crimestoppers-tip"
  ],
  "dateAdded": "2026-05-03",
  "lastUpdated": "2026-07-16",
  "addedBy": "ingestion"
}