Roll of Honor
Incident
Assistant Chief Mayerle suffered a fatal heart attack following a foot chase of a robbery suspect. He was able to catch the suspect and bring him to the police station where he collapsed.
Survivors
Assistant Chief Mayerle had been with the agency for 22 years and was survived by his wife and three children.
In Our Keeping
- Permanent identifier
BO-US-MN-B34A961F- 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
22 years. You could have gone home.
Assistant Chief of Police Mayerle gave the Keewatin Police Department 22 years. Still answering calls at the end.
Thank you for your service to the Keewatin community. Gone but never to be forgotten.
Rest easy, Assistant Chief of Police Mayerle.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Assistant Chief of Police Donald Anthony Mayerle 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 MN, 26 of 293 officers were lost to cardiac events in the line of duty — 8.9% of this state's fallen. That is 4.9 percentage points above the national rate of 4%.
National Cause Distribution
How Cardiac compares to all causes of officer death in the memorial record. Donald Anthony Mayerle's cause is highlighted.
How Donald Anthony Mayerle Compares
When Cardiac Deaths Occur
Monthly distribution of Cardiac deaths across the full memorial record. Donald Anthony Mayerle is highlighted in Nov.