Deputy Sheriff John Mullen Sack, 45, was shot and killed on October 1, 1987, at 2102 North University Street in Peoria, Illinois while serving a warrant for a code violation. He had been standing outside the residence waiting for the man to retrieve an ATM card to post bail when he was shot in the back. The shooter was killed during the ensuing standoff with law enforcement, and no further arrests or suspects were reported.

Sack had served with the Peoria County Sheriff’s Office for 20 years and was a U.S. Army Reserve veteran. He was survived by his wife, a son, and two daughters; colleagues and the community remembered him as dedicated and compassionate. The death was treated as resolved when the shooter died in the standoff, leaving no additional suspects.

If anyone knew Deputy Sack or was in that neighborhood on October 1, 1987, can you share memories or information about him or the incident?