Roll of Honor
Incident
Chief of Police Leo Dagner suffered a fatal heart attack after arresting two drunk men and placing them in the town jail. He had just placed them into the cell when he collapsed.
He had not yet locked the cell door before collapsing. One of the men went outside and notified passersby of what happened.
Chief Dagner was survived by his wife, four sons, three brothers, and two sisters.
Survivors
Chief Dagner was survived by his wife, four sons, three brothers, and two sisters.
In Our Keeping
- Permanent identifier
BO-US-ND-012D3C95- 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.
Chief of Police Dagner served with the Willow City Police Department.
Thank you for your service to the Willow City community. Gone but never to be forgotten.
Rest easy, Chief of Police Dagner.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Chief of Police Leon August "Leo" Dagner is one of 1,306 officers lost to cardiac events in the line of duty across the full record of this memorial — 4% of all 32,508 officers honored here.
In ND, 7 of 61 officers were lost to cardiac events in the line of duty — 11.5% of this state's fallen. That is 7.5 percentage points above the national rate of 4%.
National Cause Distribution
How Cardiac compares to all causes of officer death in the memorial record. Leon August "Leo" Dagner's cause is highlighted.
How Leon August "Leo" Dagner Compares
When Cardiac Deaths Occur
Monthly distribution of Cardiac deaths across the full memorial record. Leon August "Leo" Dagner is highlighted in Aug.