Roll of Honor
Incident
Officer Grant Jansen was killed in a single-vehicle crash on Spencer Road. His patrol car left the roadway, and he was ejected from the vehicle. His K9 partner was not injured.
Officer Jansen had served with the St. Charles Police Department for 13 years and previously served with the Berkeley Police Department and St. Charles County Sheriff's Department.
Survivors
He is survived by his expectant wife, son, and daughter.
In Our Keeping
- Permanent identifier
BO-US-MO-4E21E3DA- 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
20 years. You could have gone home.
Police Officer Jansen gave the St. Charles Police Department 20 years. Still answering calls at the end.
Thank you for your service to the St. Charles community. Gone but never to be forgotten.
Rest easy, Police Officer Jansen.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Officer Grant Anthony Jansen 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 MO, 237 of 813 officers were lost to accidents in the line of duty — 29.2% of this state's fallen. That is 1.8 percentage points below the national rate of 31%.
At St. Charles Police Department, 1 of 5 officers on record were lost to accidents in the line of duty — 20% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Grant Anthony Jansen's cause is highlighted.
How Grant Anthony Jansen Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Grant Anthony Jansen is highlighted in Sep.
Others Who Wore This Badge
4 officers from St. Charles Police Department are honored on badge.nw.
