Roll of Honor
Incident
Trooper Trevor Casper was shot and killed in Fond du Lac while attempting to apprehend a bank robbery and murder suspect at approximately 5:30 pm.
The subject was believed to have robbed a bank in Wausaukee approximately four hours earlier. Approximately one hour after the bank robbery the suspect abandoned the vehicle he was driving, murdered a citizen, and stole a second vehicle in Marinette County.
Trooper Casper located the second vehicle as it was being driven through Fond du Lac and began following it. He was directing other officers to their location when the man pulled into a grocery store parking lot and stopped. The man exchanged shots with the responding officers and Trooper Casper was fatally shot. The subject was also shot and killed by return fire by Trooper Casper.
Trooper Casper had graduated from the police academy only three months prior to the incident and was on his first shift after being cut loose from field training.
Survivors
He is survived by his parents and two sisters.
In Our Keeping
- Permanent identifier
BO-US-WI-8264519C- 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.
Trooper Casper served with the Wisconsin State Patrol.
Thank you for your service to the people of Wisconsin. Gone but never to be forgotten.
Rest easy, Trooper Casper.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Trooper Trevor John Casper is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.
In WI, 159 of 317 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 50.2% of this state's fallen. That is 4 percentage points below the national rate of 54.2%.
At Wisconsin State Patrol, 2 of 8 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 25% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Trevor John Casper's cause is highlighted.
How Trevor John Casper Compares
Offender Outcome
Shot and killed
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Trevor John Casper is highlighted in Mar.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Trevor John Casper was killed by handgun.
Incident Location
Others Who Wore This Badge
7 officers from Wisconsin State Patrol are honored on badge.nw.
