Peoria County Sheriff's Office, Illinois
End of Watch Thursday, October 1, 1987
Add to My HeroesJohn Mullen Sack
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. He was survived by his wife, son and two daughters.
Bio
- Age 45
- Tour 20 years
- Badge 134
- Military Veteran
Incident Details
- Cause Gunfire
- Weapon Gun; Unknown type
- Offender Shot and killed
Most Recent Reflection
View all 22 ReflectionsMy name is Brian Thomas and I just want to express my condolences to the family of Det Sack. I didnt know him, but I do recall the day he was shot in the line of duty. I remember feeling very sad for him and his family, for the news releases of his character and personality was very good and positive.
Detective John Sack, may you rest in peace and I hope and pray that you are admitted into the Pearly Gates. My sincerest condolences goes out to the family.
BRIAN THOMAS
October 26, 2018
Recent LODD Deaths

Police Officer Jeremy R. Labonte
Roswell Police Department, GA
EOW: February 7, 2025

Officer Jason Roscow
North Las Vegas Police Department, NV
EOW: February 4, 2025

Major Jeffrey A. Burke
New Jersey State Police, NJ
EOW: December 31, 2024

Corporal Dennis Francis Kelly
Delaware State Police, DE
EOW: December 21, 2024

Officer Baldino Morales-Sánchez
Mayagüez Municipal Police Department, PR
EOW: January 25, 2025

Border Patrol Agent David Christopher Maland
United States Department of Homeland Security - Customs and Border Protection - United States Border Patrol, US
EOW: January 20, 2025

Sergeant Mark Butler
Navasota Police Department, TX
EOW: January 15, 2025

Deputy Sheriff Jesus Vargas
Brazoria County Sheriff's Office, TX
EOW: January 15, 2025

Police Officer II Colton Dale Pulsipher
Las Vegas Metropolitan Police Department, NV
EOW: December 12, 2024