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Incident
Deputy Sheriff John Sack was shot and killed while serving a warrant on a man for a code violation for not cutting his grass. Deputy Sack told the man to get his ATM card so that he could post bail. As Deputy Sack exited the residence at 2102 North University Street, in Peoria, to wait for the man he was shot in the back. The man was shot and killed in the ensuing standoff. Deputy Sack was a U.S. Army Reserve veteran and had served with the Peoria County Sheriff's Office for 20 years.
Survivors
He was survived by his wife, son and two daughters.
In Our Keeping
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- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Also honored at salute.nw — U.S. Army. One record, 2 gates. John is one person.
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Tributes
I served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Deputy Sheriff Sack gave the Peoria County Sheriff's Office 20 years.
Thank you for your service to the Peoria community, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Military Service
John Mullen Sack served in the U.S. Army before joining law enforcement.
The Sacrifice · Felonious
Peoria County Sheriff's Office has lost 4 officers; 3 of them killed feloniously.
John is one of 842 officers killed feloniously in IL, 63.9% of the 1,318 remembered there.
John is one of 15,743 officers killed feloniously in the United States, 57.1% of the 27,552 remembered there.
John is one of 17,623 officers killed feloniously worldwide, 51.7% of the 34,103 remembered here.
34,103 officers are remembered on this memorial. Each number below is one of them.
Time
In 1987, 5 officers in IL were killed feloniously, the 54th heaviest of 154 years on record. The heaviest was 1924, with 22.
In 1987, 97 officers in the United States were killed feloniously, the 55th heaviest of 213 years on record. The heaviest was 1921, with 248.
In 1987, 117 officers worldwide were killed feloniously, the 50th heaviest of 265 years on record. The heaviest was 1921, with 516.
Who
John was 45. Of the 762 killed feloniously in IL whose age is recorded, half were between 31 and 45; the middle age was 38. John had served 20 years; the middle length of service was 6 years.
John was 45. Of the 14,219 killed feloniously in the United States whose age is recorded, half were between 31 and 47; the middle age was 38. John had served 20 years; the middle length of service was 6 years.
John was 45. Of the 15,853 killed feloniously worldwide whose age is recorded, half were between 30 and 46; the middle age was 38. John had served 20 years; the middle length of service was 6 years.
When
October holds 8.2% of these deaths in IL; July holds the most, 10.3%. Thursdays: 15%.
October holds 7.9% of these deaths in the United States; December holds the most, 9.4%. Thursdays: 14%.
October holds 7.8% of these deaths worldwide; December holds the most, 9.2%. Thursdays: 14.1%.
How
Felonious deaths account for 75% of all 4 deaths at Peoria County Sheriff's Office, the most common cause. The weapon recorded was gun, in 66.7% of these deaths.
Felonious deaths account for 63.9% of all 1,318 deaths in IL, the most common cause. The weapon recorded was gun, in 30.6% of these deaths.
Felonious deaths account for 57.1% of all 27,552 deaths in the United States, the most common cause. The weapon recorded was gun, in 22.8% of these deaths.
Felonious deaths account for 51.7% of all 34,103 deaths worldwide, the most common cause. The weapon recorded was gun, in 20.4% of these deaths.
His people
Peoria County Sheriff's Office has 4 officers remembered here, John among them.
Where
Military Service
John Mullen Sack served in the U.S. Army before joining law enforcement.
Visit John Mullen Sack’s page on salute.nw →
His full service record — units, decorations, where he served — is kept on salute.nw.
Where the Name Is Cut
National Law Enforcement Officers Memorial · Panel 10-W
What is kept
Photographs, film, sound and papers — what survived a life.
Also Remembered
Others Who Wore This Badge
3 officers from Peoria County Sheriff's Office are honored on badge.nw.
