{
  "id": "2018-07-10-cu-anschutz-medical-campus-armed-suspect-lockdown",
  "slug": "cu-anschutz-medical-campus-armed-suspect-lockdown-2018-07-10",
  "institution": {
    "name": "University of Colorado Anschutz Medical Campus",
    "shortName": "CU Anschutz",
    "state": "CO",
    "type": "public-r1",
    "alertSystemName": "CU Alert"
  },
  "incident": {
    "date": "2018-07-10",
    "type": "armed-person",
    "cleryCategory": "emergency-notification",
    "headline": "Medical campus locked down during search for an armed suspect; arrest within an hour",
    "headlinePublic": "Medical campus locked down during search for an armed suspect; arrest within an hour",
    "summary": "Shortly before 9:30 AM MDT on July 10, 2018, Aurora police searched for a man believed to be armed near the intersection of [North Ursula Street and East 22nd Avenue](https://www.9news.com/article/news/crime/lockout-at-cu-anschutz-lifted-after-police-arrest-suspect-recover-gun/73-572393879), placing all buildings on the CU Anschutz Medical Campus on lockdown as a precaution. A CU Alert all-clear was issued within less than an hour after a suspect was taken into custody near a parking structure and a gun recovered. During the search, an Aurora police officer unintentionally discharged a weapon; [no one was struck](https://www.cbsnews.com/colorado/news/cu-anschutz-hospital-campus-lockdown-armed-gun/).",
    "outcome": "A suspect was taken into custody near a parking structure; a gun was recovered. An Aurora police officer unintentionally fired a weapon during the search but no one was struck. Police confirmed this was not an active-shooter incident. No injuries. All-clear issued within approximately one hour.",
    "resolution": "confirmed-threat",
    "casualties": {
      "killed": 0,
      "injured": 0
    }
  },
  "alerts": [
    {
      "sequence": 1,
      "type": "initial",
      "timestampApprox": "Shortly before 9:30 AM MDT on July 10, 2018",
      "channel": "sms",
      "verbatimText": "",
      "isVerbatimConfirmed": false,
      "sourceDescription": "Closely derived from CU Alert text as described by 9News and CBS Colorado coverage; likely close to verbatim based on Twitter/X post format but the original tweet source was not directly archived",
      "annotations": []
    },
    {
      "sequence": 2,
      "type": "all-clear",
      "timestampApprox": "Within approximately one hour of the initial alert, mid-morning MDT on July 10, 2018",
      "channel": "sms",
      "verbatimText": "CU ANSCHUTZ POSSIBLE ARMED PARTY ALL CLEAR, NO LONGER NEED TO SHELTER IN PLACE/FOR COMPLETE INFO CALL 877-463-6070/FROM CU PD",
      "isVerbatimConfirmed": true,
      "sourceUrl": "https://x.com/cuden_amc_pd",
      "sourceDescription": "CU DEN|AMC Police (@CUDen_AMC_PD) official Twitter/X post on July 10, 2018; text confirmed from CBS Colorado coverage quoting the tweet verbatim",
      "annotations": [
        "Verbatim text confirmed from @CUDen_AMC_PD official Twitter account as quoted in CBS Colorado coverage; the slash-separated format is characteristic of CU's automated alert tweet system, which appended a phone number and sender tag.",
        "The all-clear was issued after a suspect was taken into custody near a parking structure and a gun was recovered; police confirmed the incident was not an active shooter situation.",
        "Separately, an Aurora Police officer at the scene unintentionally discharged a weapon during the response; no one was hit, underscoring the danger of accidental discharge during high-tension armed-person searches."
      ],
      "characterCount": 125
    }
  ],
  "context": "The University of Colorado Anschutz Medical Campus in Aurora is one of the nation's largest academic medical campuses, integrating the CU School of Medicine, CU College of Nursing, College of Pharmacy, Children's Hospital Colorado, and University of Colorado Hospital within a dense footprint west of Interstate 225. On the morning of July 10, 2018, Aurora Police Department officers were searching for a man they believed to be armed near the intersection of North Ursula Street and East 22nd Avenue, adjacent to the campus. [9News reported](https://www.9news.com/article/news/crime/lockout-at-cu-anschutz-lifted-after-police-arrest-suspect-recover-gun/73-572393879) that all campus buildings went on lockdown as a precaution, and area residents were asked to shelter in place. A CU Alert was sent out to the campus community. The suspect was subsequently taken into custody near a parking structure, and a gun was recovered. During the response, an Aurora police officer unintentionally fired a weapon; [CBS Colorado reported](https://www.cbsnews.com/colorado/news/cu-anschutz-hospital-campus-lockdown-armed-gun/) that no one was struck. The all-clear stated the campus no longer needed to shelter in place. Police confirmed the incident was not an active shooter situation. The incident illustrates how an armed-person search in streets adjacent to a medical campus routinely triggers a full campus lockdown affecting thousands of medical students, residents, nurses, pharmacists, and hospital employees.",
  "keyFindings": [
    "An armed-person search by Aurora Police on adjacent streets caused a precautionary campus-wide lockdown, with a shelter-in-place instruction, across the entire CU Anschutz Medical Campus, illustrating the perimeter-spillover vulnerability of large urban medical campuses",
    "An Aurora police officer unintentionally discharged a weapon during the response; no one was struck",
    "The lockdown affected multiple co-located institutions including University of Colorado Hospital and Children's Hospital Colorado in addition to academic campus buildings",
    "CU Alert sent an all-caps, high-brevity SMS message identifying the threat type and location, consistent with mass-notification best practices for brief actionable text"
  ],
  "sources": [
    {
      "title": "APD: Officer unintentionally fires weapon while searching for suspect near CU Anschutz",
      "url": "https://www.9news.com/article/news/crime/lockout-at-cu-anschutz-lifted-after-police-arrest-suspect-recover-gun/73-572393879",
      "type": "local-media"
    },
    {
      "title": "All Clear: CU Anschutz Hospital Campus Lockdown, Search For Man Possibly Armed With Gun",
      "url": "https://www.cbsnews.com/colorado/news/cu-anschutz-hospital-campus-lockdown-armed-gun/",
      "type": "local-media"
    },
    {
      "title": "CU DEN|AMC Police (@CUDen_AMC_PD) official Twitter/X post on July 10, 2018; text confirmed from CBS Colorado coverage qu",
      "url": "https://x.com/cuden_amc_pd",
      "type": "official-archive"
    }
  ],
  "confidence": "medium",
  "tags": [
    "armed-person",
    "lockdown",
    "hospital",
    "academic-health-center",
    "colorado",
    "aurora",
    "medical-campus",
    "cu-alert",
    "accidental-discharge",
    "emergency-notification"
  ],
  "dateAdded": "2026-05-31",
  "lastUpdated": "2026-07-16",
  "addedBy": "ingestion"
}