Campus Alert Archive
Delta College

An Armed Robbery Across the Street Sent a Suspect Onto Campus

CApolice activityemergency notificationhigh confidence
Confirmed Threat

On February 9, 2023, an armed robbery at a mall across the street from San Joaquin Delta College's Stockton campus sent the suspect fleeing onto campus, where he was spotted near the Cunningham parking lots. District police issued a MustangAlert lockdown just after 2:30 p.m. and searched the campus. The lockdown was lifted shortly before 3:30 p.m.; no shots were fired and the college said it acted out of an abundance of caution.

Alerts
2
Response
—
Killed
—
Injured
—
Institution
San Joaquin Delta College
Community College · CA
~17,000 studentsMustangAlert
Confirmed Timeline

Alert Sequence

2 messages in sequence · 1 verified verbatim

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 ALERTSMS
Approximate reconstruction199 chars
MustangAlert: Lockdown in effect at the Stockton campus. A person with a gun has been reported near the Cunningham lots. Shelter in place, lock doors, and stay away from windows until further notice.

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

ABC10 and Stocktonia reported the district police sent a MustangAlert just after 2:30 p.m. about a person with a gun reported near the Cunningham lots; the exact wording was not published, so this text is a reconstruction and isVerbatimConfirmed is false.
The alert named the Cunningham lots specifically, giving a concrete area to avoid as officers searched for the fleeing robbery suspect.
ALL CLEARSMS+52 min
Verified verbatimSan Joaquin Delta College Campus Emergency Status page (MustangAlert archive), timestamped 3:23:39 PM PST on February 9, 2023589 chars
Mustang Alert: ALL CLEAR The person with a gun emergency has ended. The lockdown is lifted and it is safe to resume normal operations. About 40 minutes ago, an armed robbery occurred off-campus near the malls. The suspect ran onto campus in an effort to escape. District Police as well as our partner agencies have thoroughly searched the entire campus. It is safe to resume normal operations at this time. All lockdowns will be lifted. We would like to thank our law enforcement partners for their assistance and the entire campus community for their fast response to the initial message.
Verbatim MustangAlert all-clear archived on the college's Campus Emergency Status page with a send time of 3:23:39 PM PST on February 9, 2023.
The message recaps the cause: an off-campus armed robbery near the malls whose suspect fled onto campus roughly 40 minutes earlier, prompting the lockdown.
This message explicitly lifts the lockdown, making it a true all-clear roughly an hour after the initial alert.
Context

Background

San Joaquin Delta College is a community college in Stockton whose district police operate the MustangAlert emergency notification system. On Thursday, February 9, 2023, district police reported an armed robbery at a mall across the street from the Stockton campus; the suspect fled onto campus and was spotted near the Cunningham parking lots. The college issued a MustangAlert lockdown just after 2:30 p.m. while officers searched the area, Stocktonia reported. A thorough search found the campus safe and the lockdown was lifted shortly before 3:30 p.m.; CBS Sacramento reported no shots were fired and the college acted out of an abundance of caution. The case illustrates how off-campus violent crime can spill onto a community-college campus and trigger a brief emergency notification.
Analysis

Key Findings

An armed robbery at an adjacent mall sent the suspect fleeing onto Delta College's Stockton campus, triggering a MustangAlert lockdown just after 2:30 p.m.
The alert pointed the community to the Cunningham lots, the area where the suspect was last seen
The lockdown lasted roughly an hour and was lifted shortly before 3:30 p.m. after a search found no on-campus threat; no shots were fired
The verbatim all-clear is preserved on the college's Campus Emergency Status archive (timestamped 3:23:39 PM PST); the initial lockdown alert text remains a reconstruction
Outcome
District police performed a thorough search and deemed the campus safe, lifting the lockdown shortly before 3:30 p.m. No shots were fired and no injuries were reported on campus; the college said the lockdown was issued out of an abundance of caution.
Provenance

Sources

  1. Official
    Campus Emergency Status (MustangAlert archive) - San Joaquin Delta College
    deltacollege.edu
  2. News
    Lockdown lifted at San Joaquin Delta College after off-campus armed robbery - ABC10
    abc10.com
  3. News
    Delta College lockdown lifted after report of person on campus with gun - Stocktonia News
    stocktonia.org
  4. News
    Lockdown lifted after report of person with gun on Delta College's Stockton campus - CBS Sacramento
    cbsnews.com
Tags
police-activitylockdownshelter-in-placecommunity-collegecaliforniaemergency-notificationarmed-robbery-spilloverfleeing-suspectstockton
Added May 2026Updated June 2026Via ingestion