Roll of Honor
Incident
Patrolman Wrenn and Patrolman O. L. Jarnigan were shot and killed during a struggle with a suspect they were attempting to arrest. The two officers were attempting to wrestle a gun from the suspect but the man was able to shoot both officers in the head, killing them.
When Patrolman Jarnigan's 65-year-old father was told of his death he went into a state of shock and died a short time later. The 23-year-old suspect died in prison from influenza on November 8, 1918.
Patrolman Wrenn had been with the agency for ten years and was survived by his wife and three children.
Survivors
Patrolman Wrenn had been with the agency for ten years and was survived by his wife and three children.
In Our Keeping
- Permanent identifier
BO-US-TN-2200746B- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Patrolman Wrenn gave the Knoxville Police Department 10 years.
Thank you for your service to the Knoxville community. Gone but never to be forgotten.
Rest easy, Patrolman Wrenn.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Patrolman Mike Wrenn is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,772 officers honored here.
In TN, 498 of 769 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 64.8% of this state's fallen. That is 64.8 percentage points above the national rate of 0%.
At Knoxville Police Department, 12 of 17 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 70.6% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Mike Wrenn's cause is highlighted.
How Mike Wrenn Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Mike Wrenn is highlighted in Jan.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Mike Wrenn was killed by handgun.
Others Who Wore This Badge
16 officers from Knoxville Police Department are honored on badge.nw.
