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Campus Alert Archive
Dallas College

A Traffic Stop, a Black Tahoe, and a Sword: El Centro Locks Down Over a Suspected Bomb

TXsuspicious packageemergency notificationmedium confidence
UnfoundedNo evidence of an actual threat was found. The institutional response is documented because the alert communication is identical to what would occur during a real incident.

A midday traffic stop near Dallas College's downtown El Centro Campus escalated into a suspected-bomb investigation on April 7, 2026, prompting a lockdown of the campus and the adjacent Bank of America Plaza tower. Dallas police responded after officers stopped a black Chevrolet Tahoe and saw something inside they feared was an explosive device. The bomb squad breached the vehicle and pulled out a sword; no bomb was found and a 65-year-old man, William Hemphill, was arrested.

Alerts
2
Response
Killed
Injured
Institution
Dallas College El Centro Campus
Community College · TX
~65,000 studentsDallas College Emergency Alerts
Confirmed Timeline

Alert Sequence

2 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 ALERTSMS
Approximate reconstruction165 chars
Dallas College Alert: El Centro Campus is on lockdown due to police activity in the area. Remain inside, 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.

Reconstructed lockdown wording; the web environment 403-blocks the Dallas College alert archive, so the exact SMS text could not be confirmed verbatim.
The lockdown was triggered by police activity around a stopped black Tahoe rather than by any threat reported on campus itself, a common pattern for urban downtown campuses.
ALL CLEARSMS
Approximate reconstruction156 chars
Dallas College Alert: The lockdown at El Centro Campus has been lifted. Police have cleared the area and there is no threat. Normal operations have resumed.

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

Reconstructed all-clear; Dallas Police said the car and package were cleared and no threat was found after the bomb squad pulled a sword from the Tahoe.
This message qualifies as a true all-clear because it lifts the lockdown and states there is no threat, consistent with the police clearance reported by WFAA.
Context

Background

Dallas College's El Centro Campus sits in the heart of downtown Dallas, sharing blocks with office towers including Bank of America Plaza. On April 7, 2026, Dallas police responded around noon to the area near the 900 block of Pacific Avenue after a traffic stop of a black Chevrolet Tahoe; officers reported seeing something inside they thought could be an explosive device, prompting lockdowns of the campus and nearby buildings and major downtown traffic closures. The Dallas Police bomb squad ultimately breached the SUV and recovered a sword rather than a bomb. Police said the car and package were cleared and no threat was found, and a 65-year-old man, William Hemphill, was arrested. The incident illustrates how a single suspicious vehicle near a downtown community-college campus can trigger an emergency notification and a multi-block lockdown.
Analysis

Key Findings

A routine downtown traffic stop escalated into a suspected-bomb investigation that locked down Dallas College's El Centro Campus and adjacent towers
The Dallas Police bomb squad breached the vehicle and found a sword, not an explosive; no bomb was located
Urban community-college campuses share their risk geography with surrounding office buildings, complicating Clery notification decisions
Outcome
The vehicle and package were cleared with no explosive found. William Hemphill, 65, was taken into custody. The El Centro Campus and nearby downtown buildings reopened after the all-clear.
Provenance

Sources

  1. News
  2. News
  3. News
Tags
suspicious-packagebomb-threatlockdowntexascommunity-collegedowntown-dallasemergency-notificationunfoundedUnfounded
Added May 2026Updated May 2026Via ingestion