Roll of Honor
Incident
Police Officer Gregg Casillas was shot and killed as he attempted to arrest a man in the 1400 block of South Palomares Street following a vehicle pursuit.
The vehicle fled after officers attempted to stop it for reckless driving. The driver crashed into another vehicle before fleeing on foot and entering an apartment. As Officer Casillas and another officer attempted to make contact with the man he fired through the apartment door, striking both officers.
The officers were both transported to a local hospital where Officer Casillas succumbed to his wounds. The man surrendered after remaining barricaded inside his home for more than 15 hours. He was charged with Officer Casillas' murder as well as several counts of attempted murder of a peace officer.
Officer Casillas had served with the Pomona Police Department for six months and was still in field training at the time of the incident. He had been employed as a civilian with the agency for three years before entering the police academy.
Survivors
He is survived by his wife and two children.
In Our Keeping
- Permanent identifier
BO-US-CA-3A734379- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Police Officer Casillas served with the Pomona Police Department.
Thank you for your service to the Pomona community. Gone but never to be forgotten.
Rest easy, Police Officer Casillas.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Officer Greggory Casillas, V is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.
In CA, 974 of 1,837 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 53% of this state's fallen. That is 1.2 percentage points below the national rate of 54.2%.
At Pomona Police Department, 4 of 7 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 57.1% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Greggory Casillas, V's cause is highlighted.
How Greggory Casillas, V Compares
Offender Outcome
Charged with murder
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Greggory Casillas, V is highlighted in Mar.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Greggory Casillas, V was killed by gun; unknown type.
Incident Location
Others Who Wore This Badge
6 officers from Pomona Police Department are honored on badge.nw.
