{
  "id": "2026-08-23-university-of-illinois-green-fifth-armed-subject",
  "slug": "university-of-illinois-green-fifth-armed-subject-2026-08-23",
  "institution": {
    "name": "University of Illinois Urbana-Champaign",
    "shortName": "Illinois",
    "state": "IL",
    "type": "public-r1",
    "alertSystemName": "Illini-Alert",
    "enrollment": 56000
  },
  "incident": {
    "date": "2026-08-23",
    "type": "armed-person",
    "cleryCategory": "emergency-notification",
    "resolution": "contained",
    "headline": "Reported armed subject at Green and Fifth, then ended",
    "headlinePublic": "Reported armed subject at Green and Fifth, then ended",
    "summary": "Illini-Alert [warned of a reported subject armed with a firearm at Green and Fifth in Champaign](https://x.com/IlliniAlert/status/2091401281592078631), [kept an avoid-area update in place](https://x.com/IlliniAlert/status/2091405440558968996), and [ended the emergency about 41 minutes after the initial](https://x.com/IlliniAlert/status/2091411497230406059).",
    "outcome": "Avoid-area products issued; emergency ended and regular activities resumed. UIPD later reported a juvenile arrest on weapons charges from the same response."
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestamp": "2026-08-23T00:44:56-05:00",
      "channel": "twitter-x",
      "verbatimText": "Illini-Alert Emergency. There is a reported subject armed with a firearm at Green/Fifth in Champaign. Avoid area. More information to come.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/IlliniAlert/status/2091401281592078631",
      "sourceDescription": "@IlliniAlert Green/Fifth armed subject",
      "annotations": [
        "Dual independent X fetch match (keyword + thread_fetch) 2026-08-23. sha256 8da6453d5cc24f10c94d3d980e9bad63f52af0716a616d793346025cf1a3270c.",
        "Timeline +/-48h walked 2026-08-23: sequences 2-3 are the only further @IlliniAlert posts for this incident. The single reply on the initial is from @FnSbuzz, not the alerting account.",
        "Distinct incident from 2026-08-11-university-of-illinois-tornado-warning-take-shelter: different hazard and date."
      ],
      "characterCount": 139
    },
    {
      "sequence": 2,
      "type": "update",
      "timestamp": "2026-08-23T01:01:28-05:00",
      "channel": "twitter-x",
      "verbatimText": "Illini-Alert. Police remain in the area of Green St/Fifth St in Champaign.  Continue to avoid the area.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/IlliniAlert/status/2091405440558968996",
      "sourceDescription": "@IlliniAlert Green St/Fifth St remain",
      "annotations": [
        "Dual independent X fetch match 2026-08-23. Double space after Champaign. preserved."
      ],
      "characterCount": 103
    },
    {
      "sequence": 3,
      "type": "all-clear",
      "timestamp": "2026-08-23T01:25:32-05:00",
      "channel": "twitter-x",
      "verbatimText": "Illini-Alert. The emergency has ended.  It is safe to resume regular activities.",
      "isVerbatimConfirmed": true,
      "confidence": "high",
      "sourceUrl": "https://x.com/IlliniAlert/status/2091411497230406059",
      "sourceDescription": "@IlliniAlert emergency ended",
      "annotations": [
        "Dual independent X fetch match 2026-08-23. Double space after ended. preserved."
      ],
      "characterCount": 80
    }
  ],
  "context": "Illinois posts imminent-threat products on [@IlliniAlert](https://x.com/IlliniAlert). The three posts are unthreaded timeline follow-ups (separate conversation IDs), captured as one Green/Fifth firearm incident. UIPD's later [weapons-arrest release](https://www.police.illinois.edu/category/alerts/) describes the same early-morning response.",
  "keyFindings": [
    "Three-message sequence: reported firearm at Green/Fifth, remain-in-area avoid update, then emergency ended.",
    "Double spaces after the period in the update and all-clear are preserved from the official posts."
  ],
  "sources": [
    {
      "title": "@IlliniAlert Green/Fifth armed subject",
      "url": "https://x.com/IlliniAlert/status/2091401281592078631",
      "type": "official-social",
      "accessDate": "2026-08-23",
      "archiveUrl": null,
      "archiveNotes": "SPN 523 at capture 2026-08-23; archive.org save endpoint returned HTTP 523"
    },
    {
      "title": "@IlliniAlert Green St/Fifth St remain",
      "url": "https://x.com/IlliniAlert/status/2091405440558968996",
      "type": "official-social",
      "accessDate": "2026-08-23",
      "archiveUrl": null,
      "archiveNotes": "SPN 523 at capture 2026-08-23; archive.org save endpoint returned HTTP 523"
    },
    {
      "title": "@IlliniAlert emergency ended",
      "url": "https://x.com/IlliniAlert/status/2091411497230406059",
      "type": "official-social",
      "accessDate": "2026-08-23",
      "archiveUrl": null,
      "archiveNotes": "SPN 523 at capture 2026-08-23; archive.org save endpoint returned HTTP 523"
    },
    {
      "title": "UIPD weapons-arrest release index",
      "url": "https://www.police.illinois.edu/category/alerts/",
      "type": "official-statement",
      "accessDate": "2026-08-23",
      "archiveUrl": null,
      "archiveNotes": "SPN 523 at capture 2026-08-23; archive.org save endpoint returned HTTP 523"
    }
  ],
  "confidence": "high",
  "tags": [
    "public-r1",
    "illinois",
    "armed-person",
    "illini-alert"
  ],
  "dateAdded": "2026-08-23",
  "lastUpdated": "2026-08-23",
  "addedBy": "ingestion"
}