Roll of Honor
Incident
Officer Gregory Diley was killed in an automobile crash on I-40, near Yucca, while returning to Kingman following an investigation. It is believed that one of the tires on his vehicle experienced a blowout, causing the car to overturn. Officer Diley had served with the Arizona Department of Public Safety for four years and was assigned to the Criminal Investigations Bureau.
Survivors
He was survived by his expectant wife.
In Our Keeping
- Permanent identifier
BO-US-AZ-09CCD9C9- 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.
Officer Diley gave the Arizona Department of Public Safety 4 years.
Thank you for your service to the people of Arizona. Gone but never to be forgotten.
Rest easy, Officer Diley.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Officer Gregory A. Diley is one of 10,088 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,508 officers honored here.
In AZ, 95 of 330 officers were lost to accidents in the line of duty — 28.8% of this state's fallen. That is 2.2 percentage points below the national rate of 31%.
At Arizona Department of Public Safety, 15 of 31 officers on record were lost to accidents in the line of duty — 48.4% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Gregory A. Diley's cause is highlighted.
How Gregory A. Diley Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Gregory A. Diley is highlighted in Dec.
Incident Location
Others Who Wore This Badge
30 officers from Arizona Department of Public Safety are honored on badge.nw. Showing the 16 most recent.
