Roll of Honor
Incident
Turnkey Johnathan Armstrong died after suffering a skull fracture while escorting a prisoner in the Madison County Jail.
He was taking the prisoner to a separate cell pending an investigation of his mental condition. He was holding the prisoner's arm when the man suddenly jerked away, causing Turnkey Armstrong to fall forward. His head struck a steel bar on the cell door and he suffered a skull fracture as a result. He died a short time later.
Turnkey Armstrong had served with the Madison County Sheriff's Department for one month.
Survivors
He was survived by his wife and parents.
In Our Keeping
- Permanent identifier
BO-US-IN-CF02E029- 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.
Turnkey Armstrong served with the Madison County Sheriff's Department.
Thank you for your service to the Anderson community. Gone but never to be forgotten.
Rest easy, Turnkey Armstrong.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Turnkey Johnathan Armstrong 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 IN, 311 of 503 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 61.8% of this state's fallen. That is 7.6 percentage points above the national rate of 54.2%.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Johnathan Armstrong's cause is highlighted.
How Johnathan Armstrong Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Johnathan Armstrong is highlighted in Mar.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Johnathan Armstrong was killed by person.