{
  "id": "2025-06-28-university-of-pennsylvania-4200-ludlow-person-with-weapon",
  "slug": "university-of-pennsylvania-4200-ludlow-person-with-weapon-2025-06-28",
  "institution": {
    "name": "University of Pennsylvania",
    "shortName": "Penn",
    "state": "PA",
    "type": "private-r1",
    "alertSystemName": "UPennAlert",
    "enrollment": 28000
  },
  "incident": {
    "date": "2025-06-28",
    "type": "armed-person",
    "cleryCategory": "emergency-notification",
    "resolution": "resolved",
    "headline": "Person with a weapon on the 4200 block of Ludlow",
    "headlinePublic": "Person with a weapon on the 4200 block of Ludlow",
    "summary": "Penn [UPennAlert warned of a person with a weapon on the 4200 block of Ludlow Street](https://www.publicsafety.upenn.edu/upa-archive/person-with-a-weapon/), with an official complextion typo in the SMS, then posted an all-clear.",
    "outcome": "All-clear posted. No reported injuries. Police and security patrolling."
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2025-06-28T20:38:00-04:00",
      "channel": "sms",
      "verbatimText": "UPennAlert: Person with a weapon reported in the area of 4200 block of Ludlow Street.\n\nIncreased police activity in the area. Police on scene, use caution, avoid the immediate area.\n\nSuspect is described as a Black male, medium complextion, 5’10”-6’ tall, in his 30s-40s, wearing a green/blue shirt.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://www.publicsafety.upenn.edu/upa-archive/person-with-a-weapon/",
      "sourceDescription": "UPennAlert archive: person with a weapon, 4200 Ludlow",
      "annotations": [
        "Official UPennAlert archive 2026-09-20. Dual-fetch open_page + r.jina.ai. sha256 21749204861d241d011b396a174c0868316e67330c9bdf83e83233769522b2e7. Official complextion typo preserved. SMS block only; website investigation prose not flattened.",
        "Distinct incident from 2026-09-14-university-of-pennsylvania-4000-baltimore-person-with-weapon: different date and Ludlow vs Baltimore."
      ],
      "characterCount": 299
    },
    {
      "sequence": 2,
      "type": "all-clear",
      "channel": "sms",
      "verbatimText": "Update: All clear in the area of 4200 block of Ludlow Street. You may resume usual activity. Police and security are patrolling the area.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://www.publicsafety.upenn.edu/upa-archive/person-with-a-weapon/",
      "sourceDescription": "UPennAlert archive: 4200 Ludlow all-clear",
      "annotations": [
        "Same archive page. Labeled Update rather than UPennAlert. sha256 8178e31a21bec907a8bbf73d2bd785ab895b1159193f633921f3dd5dc2260b66. Timestamp of the all-clear is not separately posted; Date of Alert on the page is 8:38 pm for the incident."
      ],
      "characterCount": 137,
      "timestampApprox": "June 28, 2025 after the 8:38 pm initial (all-clear time not separately posted)"
    }
  ],
  "context": "Penn posts UPennAlert products on the [upa-archive](https://www.publicsafety.upenn.edu/upa-archive/person-with-a-weapon/). Date of Alert: June 28, 2025 8:38 pm.",
  "keyFindings": [
    "Official SMS names 4200 Ludlow and preserves complextion."
  ],
  "sources": [
    {
      "title": "UPennAlert archive: person with a weapon, 4200 Ludlow",
      "url": "https://www.publicsafety.upenn.edu/upa-archive/person-with-a-weapon/",
      "type": "official-archive",
      "accessDate": "2026-09-20",
      "archiveUrl": null,
      "archiveNotes": "SPN not attempted after 500 flap"
    }
  ],
  "confidence": "high",
  "tags": [
    "private-r1",
    "pennsylvania",
    "penn",
    "upennalert",
    "ivy",
    "weapons"
  ],
  "dateAdded": "2026-09-20",
  "lastUpdated": "2026-09-20",
  "addedBy": "ingestion"
}