Deputy Sheriff John Mullen Sack

Deputy Sheriff John Mullen Sack

Peoria County Sheriff's Office, Illinois

End of Watch Thursday, October 1, 1987

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John 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.


  • Age 45
  • Tour 20 years
  • Badge 134
  • Military Veteran

Incident Details

  • Cause Gunfire
  • Weapon Gun; Unknown type
  • Offender Shot and killed

warrant service

Most Recent Reflection

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My 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.


October 26, 2018

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