Roll of Honor
Incident
Policeman Delmar Cook was shot and killed by a mentally disturbed person at 4800 W 48th Street. The 46-year-old man had forced several poison pills down his wife's throat and then threatened to kill a doctor who had come to the home to treat her. The doctor called the police department, and Policeman Cook arrived with several other officers moments later. Policeman Cook was shot in the stomach with a .45 caliber pistol as the officers attempted to subdue the subject. The man was found guilty of second-degree murder, but the charges were dismissed after the judge ruled him to be insane. The man was committed to the Mendocino State Hospital. He was released on April 4, 1951. Policeman Cook was a U.S. Army veteran of WWII.
Survivors
He was survived by his wife, daughter, and sister.
In Our Keeping
- Permanent identifier
BO-US-CA-D3A53BFA- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Also honored at salute.nw — U.S. Army. One record, 2 gates. Delmar is one person.
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Tributes
I served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Policeman Cook served with the Los Angeles Police Department.
Thank you for your service to the Los Angeles community, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Military Service
Delmar Eugene Cook served in the U.S. Army before joining law enforcement.
Policeman Delmar Eugene Cook is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,759 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 53 percentage points above the national rate of 0%.
At Los Angeles Police Department, 115 of 240 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 47.9% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Delmar Eugene Cook's cause is highlighted.
How Delmar Eugene Cook Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Delmar Eugene Cook is highlighted in Dec.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Delmar Eugene Cook was killed by handgun.
Incident Location
Military Service
Delmar Eugene Cook served in the U.S. Army before joining law enforcement.
Visit Delmar Eugene Cook’s page on salute.nw →
His full service record — units, decorations, where he served — is kept on salute.nw.
Others Who Wore This Badge
239 officers from Los Angeles Police Department are honored on badge.nw. Showing the 16 most recent.
