Campus Alert Archive
CU Anschutz

Their Former PhD Student Walked Into a Movie Theater With a Rifle: CU Anschutz Sweeps the Buildings Holmes Worked In

COpolice activityemergency notificationmedium confidence
Confirmed Threat

In the early hours of July 20, 2012, James Eagan Holmes), a recently withdrawn doctoral student in the CU Anschutz neuroscience program, opened fire inside a Century 16 movie theater in Aurora, Colorado, killing 12 people and wounding 70. The shooting occurred off-campus, but by mid-morning the University of Colorado Anschutz Medical Campus — where Holmes had been enrolled until June 2012 — had become a parallel scene. At approximately 12:15 PM MDT, Research Buildings 1 and 2 were evacuated so that every laboratory and office Holmes had ever used could be swept for booby traps; non-essential personnel were sent home.

Alerts
3
Response
min
Killed
0
Injured
0
Institution
University of Colorado Anschutz Medical Campus
Public R1 · CO
~4,500 studentsCU Alerts
Confirmed Timeline

Alert Sequence

3 messages in sequence

Some alert texts below are approximate reconstructions from news coverage, not confirmed verbatim transcripts. Reconstructed texts are shown in italic with a dashed border. Verified verbatim texts have a solid border and are marked accordingly.

INITIAL ALERTEmail
Approximate reconstruction357 chars
CU Anschutz Alert: Research Buildings 1 and 2 are being evacuated as a precaution related to the Aurora theater investigation. All occupants must leave the buildings immediately. HVAC systems are being shut down. Non-essential personnel are asked to go home. Law enforcement is sweeping all areas previously used by a former graduate student now in custody.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

Sent at approximately 12:15 PM MDT on July 20, 2012 — roughly 11 hours after Holmes opened fire at the Century 16 theater at 12:38 AM MDT and approximately 4 hours after Aurora Police confirmed Holmes's affiliation with the Anschutz campus
The decision to shut down HVAC was specifically intended to contain any aerosolized chemical or biological agent in case Holmes had laboratory access to one — Holmes had been a first-year neuroscience PhD student with bench access until June 2012
'Former graduate student now in custody' was deliberately ungendered and unnamed; CU Anschutz did not identify Holmes by name in its first community message
UPDATEEmail
Approximate reconstruction462 chars
CU Anschutz Update: Law enforcement continues to sweep Research Buildings 1 and 2 and other facilities associated with the suspect's prior research activities. No hazardous materials have been identified at this time. Aurora Police are leading the investigation; the FBI and ATF are providing assistance. Counseling resources are being made available to faculty, staff, and students affected by today's events. Further updates will be sent by email as warranted.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

By mid-afternoon Holmes's apartment had been determined to be booby-trapped, but no devices were found on the Anschutz campus
CU System President Bruce Benson and CU Anschutz Chancellor Don Elliman issued [a joint leadership statement](https://connections.cu.edu/stories/breaking-news-cu-leadership-issues-statement-todays-mass-shooting) the same afternoon
Counseling resources were extended through [CU Anschutz's Office of Case Management](https://news.cuanschutz.edu/news-stories/statement-from-the-university-on-james-holmes) — the unit that became the focus of the later threat-assessment review
ALL CLEAREmail
Approximate reconstruction428 chars
CU Anschutz Update: Research Buildings 1 and 2 have been cleared by law enforcement and will reopen for normal operations on Monday, July 23. No hazardous materials were identified. Regular building access procedures are in effect. The University of Colorado continues to cooperate fully with the ongoing investigation. The CU community's thoughts remain with the victims, families, and survivors of the Aurora theater shooting.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

The all-clear came roughly 60 hours after the initial evacuation — an unusually long sweep reflecting both the meticulous nature of the search for booby traps and the holiday-weekend scheduling
The university subsequently reviewed access logs to confirm Holmes had not entered campus laboratories after his June 2012 withdrawal
CU Anschutz did not link the Aurora shooting to any specific failure of its threat-assessment team but acknowledged that Dr. Lynne Fenton had raised concerns to the team in early June 2012 before Holmes withdrew
Context

Background

On the night of July 19-20, 2012, James Eagan Holmes) — a 24-year-old former first-year neuroscience PhD student at the University of Colorado Anschutz Medical Campus in Aurora — entered a midnight screening of *The Dark Knight Rises* at the Century 16 movie theater wearing tactical gear, deployed tear-gas grenades, and opened fire on the audience with a shotgun, an AR-15-style rifle, and a Glock pistol. He killed 12 people and wounded 70 others — at the time the largest civilian mass shooting in modern US history outside of Virginia Tech (32 killed) and Sandy Hook (which had not yet occurred). Holmes was arrested behind the theater minutes later, having made no attempt to flee. Within hours, Aurora Police confirmed Holmes had been enrolled in the CU Anschutz neuroscience PhD program from June 2011 until early June 2012, when he failed a key oral examination and withdrew. The university campus itself was not a target, but it became a parallel investigative site: at approximately 12:15 PM MDT on July 20, CU Anschutz evacuated Research Buildings 1 and 2 and shut down their HVAC systems so that every laboratory and office Holmes had used could be swept for hazardous materials. No devices were found at CU Anschutz; Holmes's booby-trapped off-campus apartment was disarmed by Aurora Police and the FBI over the following days. CU System President Bruce Benson and Chancellor Don Elliman issued a joint leadership statement. The CU Anschutz campus reopened on Monday, July 23, 2012. The university subsequently disclosed that its behavioral threat assessment team had been alerted to concerns about Holmes by university psychiatrist Lynne Fenton in early June 2012 but had not formally acted because Holmes withdrew from the program before the team could meet. That disclosure produced one of the most consequential post-incident debates in campus behavioral-threat assessment, directly informing revisions at institutions across the country. Holmes was ultimately convicted on 165 counts (including 24 first-degree murder counts) in July 2015 and sentenced to life without parole. The case is significant for the archive because it documents (1) how a former student can transform a campus into a parallel crime scene without ever entering the campus on the day of the attack, (2) the operational logic of evacuating and sweeping all of a suspect's former workspaces as a hazardous-materials precaution, and (3) the threat-assessment-team review that followed the discovery of pre-incident psychiatric warnings.
Analysis

Key Findings

Holmes had withdrawn from the CU Anschutz neuroscience PhD program in early June 2012 after failing a key oral exam; the university confirmed via access logs he had not entered campus laboratories after that withdrawal
Research Buildings 1 and 2 were evacuated at approximately 12:15 PM MDT on July 20, 2012 — about 11 hours after the theater shooting — and were not cleared for reopening until Monday, July 23
HVAC systems in Holmes's former research buildings were deliberately shut down as a hazardous-materials precaution given Holmes's prior bench access during the 2011-2012 academic year
University psychiatrist Lynne Fenton had alerted the CU Anschutz behavioral threat assessment team to concerns about Holmes in early June 2012, but the team did not act because Holmes withdrew before they could meet — a disclosure that became the most consequential post-incident review
Holmes was ultimately convicted on 165 counts in July 2015 and sentenced to life without parole after the jury deadlocked on the death penalty
Outcome
No devices or hazards were found at the Anschutz Medical Campus. Holmes had booby-trapped his off-campus apartment with incendiary devices, which Aurora Police and the FBI disarmed over several days. Holmes was arrested behind the theater within minutes of the shooting. CU Anschutz Research Buildings 1 and 2 reopened the following Monday. Holmes was ultimately [convicted on 165 counts](https://en.wikipedia.org/wiki/James_Holmes_(mass_murderer)) in 2015 and sentenced to life without parole. CU Anschutz launched a comprehensive review of its [behavioral threat assessment team](https://news.cuanschutz.edu/news-stories/statement-from-the-university-on-james-holmes), which had been alerted to Holmes by psychiatrist Lynne Fenton in June 2012 but had not acted because Holmes withdrew from the program.
Provenance

Sources

  1. News
    Research Buildings Evacuated On Anschutz Campus - CBS Colorado
    cbsnews.com
  2. Official
    Statement from the university on James Holmes - CU Anschutz
    news.cuanschutz.edu
  3. Official
    University of Colorado statement on July 20 shooting - CU Boulder Today
    colorado.edu
  4. Official
    Breaking news: CU leadership issues statement on today's mass shooting - CU Connections
    connections.cu.edu
  5. Official
    Graduate School Neuroscience Program overview; Answers to questions regarding James Holmes
    news.cuanschutz.edu
  6. Source
    2012 Aurora theater shooting - Wikipedia
    en.wikipedia.org
  7. Source
    James Holmes (mass murderer) - Wikipedia
    en.wikipedia.org
Tags
mass-shootingoff-campusformer-studentevacuationanschutzcoloradoaurorajames-holmesthreat-assessmentbehavioral-interventionhazmat-precaution2012
Added May 2026Updated May 2026Via ingestion