Roll of Honor
Incident
City Marshal John Isaacs was killed and a Pierce County Deputy Sheriff was critically injured when they were attacked by members of a gang of Italian railroad laborers.
The officers were attempting to serve warrants for violations of Wisconsin game laws when the laborers turned on them with shovels, beat Marshal Isaacs to death, and beat the deputy so badly that he was thought to be dead.
Six men, implicated in the attack, made their escape on handcars which were later found abanboned two miles south of Prescott. Later in the day a posse captured five of the suspects near Diamond Bluff.
Thank you for your service and please know that no passage of time will ever erase your sacrifice. Rest in peace always.
Detective Cpl/3 Steven Rizzo Delaware State Police (Retired) July 13th, 2020
In Our Keeping
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BO-US-WI-950654CA- Stewardship
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- 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.
City Marshal Isaacs served with the Prescott Police Department.
Thank you for your service to the Prescott community. Gone but never to be forgotten.
Rest easy, City Marshal Isaacs.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
City Marshal John Isaacs 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 Prescott Police Department, 2 of 3 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 66.7% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. John Isaacs's cause is highlighted.
How John Isaacs Compares
Offender Outcome
Apprehended
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. John Isaacs is highlighted in Jul.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. John Isaacs was killed by blunt object; shovel.
Others Who Wore This Badge
2 officers from Prescott Police Department are honored on badge.nw.
