Roll of Honor
Incident
Deputy Sheriff Marshall Ervin and Deputy Sheriff Jonathan Koleski were shot and killed while serving a felony theft warrant at 2474 Hampton Glen Court in Marietta shortly before 8:00 pm.
They were taking the subject into custody when another subject inside the home confronted them with a firearm. Both deputies gave commands for the man to drop the firearm before an exchange of shots. Both deputies suffered fatal wounds. The wanted subject and the shooter both barricaded themselves in the home but were both taken into custody later in the night.
The man who shot Deputy Ervin and Deputy Koleski plead guilty to murder in December 2022 and was sentenced to two life terms in prison.
Deputy Ervin had served with the Cobb County Sheriff's Office for 10 years.
Survivors
He is survived by his wife and two children.
In Our Keeping
- Permanent identifier
BO-US-GA-6F48B069- 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.
Deputy Sheriff Ervin gave the Cobb County Sheriff's Office 10 years.
Thank you for your service to the Marietta community. Gone but never to be forgotten.
Rest easy, Deputy Sheriff Ervin.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Deputy Sheriff Marshall Samuel Ervin, Jr. 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 GA, 548 of 903 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 60.7% of this state's fallen. That is 6.5 percentage points above the national rate of 54.2%.
At Cobb County Sheriff's Office, 3 of 3 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 100% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Marshall Samuel Ervin, Jr.'s cause is highlighted.
How Marshall Samuel Ervin, Jr. Compares
Offender Outcome
Sentenced to life
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Marshall Samuel Ervin, Jr. is highlighted in Sep.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Marshall Samuel Ervin, Jr. was killed by gun; unknown type.
Incident Location
Others Who Wore This Badge
2 officers from Cobb County Sheriff's Office are honored on badge.nw.
