Roll of Honor
Incident
Officer John Dieken was killed in a motorcycle crash while responding to a fire call on Gaston Avenue and Abrams Road. During his response, another motorist turned in front of him, causing a collision at Parry Avenue and Fletcher Street. He succumbed to his injuries the next day. Investigation revealed that the motorcycle Officer Dieken was riding had previously been involved in two other accidents in which the rider was either injured or killed. Officer Dieken had served with the Dallas Police Department for just over one year. He was survived by his wife, son (born three days before his death), parents, and sister. His son later worked with the Abilene Police Department in Texas and served as the sheriff of the Taylor County Sheriff's Office.
Survivors
He was survived by his wife, son (born three days before his death), parents, and sister.
In Our Keeping
- Permanent identifier
BO-US-TX-A7580F46- 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
You barely got started.
Officer Dieken gave the Dallas Police Department 1 year.
Thank you for your service to the Dallas community. Gone but never to be forgotten.
Rest easy, Officer Dieken.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Officer John William Dieken 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 TX, 653 of 2,421 officers were lost to accidents in the line of duty — 27% of this state's fallen. That is 4 percentage points below the national rate of 31%.
At Dallas Police Department, 30 of 95 officers on record were lost to accidents in the line of duty — 31.6% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. John William Dieken's cause is highlighted.
How John William Dieken Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. John William Dieken is highlighted in Aug.
Incident Location
Others Who Wore This Badge
94 officers from Dallas Police Department are honored on badge.nw. Showing the 16 most recent.
