Roll of Honor
Frank Earl Dannenberg
Incident
Deputy Frank Dannenberg succumbed to injuries suffered three days earlier when he was attacked and beaten after serving an eviction notice.
Deputy Dannenberg was preparing to leave Cabrini-Green, a public housing project of the Chicago Housing Authority at 1160 North Sedgwick Street, when the attack occurred. He was found with severe head injuries and taken to Henrotin Hospital where he remained until he died from those injuries three days later.
The suspect stole his service weapon and wallet and then fled.
Deputy Dannenberg had served with the Cook County Sheriff's Office for only nine months.
Survivors
He was survived by his wife, daughter and three grandchildren.
In Our Keeping
- Permanent identifier
BO-US-IL-E39AD758- 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 Dannenberg served with the Cook County Sheriff's Office.
Thank you for your service to the Chicago community. Gone but never to be forgotten.
Rest easy, Deputy Sheriff Dannenberg.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Deputy Sheriff Frank Earl Dannenberg 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 IL, 842 of 1,318 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 63.9% of this state's fallen. That is 9.7 percentage points above the national rate of 54.2%.
At Cook County Sheriff's Office - Department of Court Services, 5 of 8 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 62.5% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Frank Earl Dannenberg's cause is highlighted.
How Frank Earl Dannenberg Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Frank Earl Dannenberg is highlighted in Dec.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Frank Earl Dannenberg was killed by person.
Others Who Wore This Badge
7 officers from Cook County Sheriff's Office - Department of Court Services are honored on badge.nw.
