MUS-2026-0013
Archive card
MUS-2026-0013
Homicide
- Incident
- 1992
- Indexed
- Oct 2, 2026, by MuseUnsolved
- Agency
- Illinois State Police
- Location
- LaSalle County IL
Public record. Index entry.
Index entry. Case details compiled from public reporting; our researchers have not verified this file yet.
Summary
What happened, as the record shows.
Tammy Zywicki, 21, a Grinnell College student, was driving home when car trouble stranded her on Interstate 80 in LaSalle County, Illinois, in 1992. She was abducted and found stabbed to death nine days later, some 500 miles away. The FBI offers a $50,000 reward. In August 2026, Illinois State Police named a new person of interest; no arrest has been made. The case is documented by Iowa Cold Cases, an FBI wanted poster, and Des Moines Register archives.
Timeline
What the record establishes.
- 1992
Car trouble strands Tammy Zywicki, 21, on I-80 in LaSalle County, Illinois. She is abducted.
- 1992
Nine days later she is found stabbed to death, some 500 miles from where she vanished.
- August 2026
Illinois State Police name a new person of interest. No arrest is made.
- 2026
The FBI $50,000 reward stands. The case remains unsolved.
Key people
The people in the file.
21, a Grinnell College student. Abducted after car trouble on I-80 in 1992; found stabbed to death nine days later.
Contact details change over time; confirm the current assignee before publishing.
Investigating agency
Where tips go.
This case is with the Illinois State Police. If you know something, say something to them. For public-record leads for our researchers, use the tip line on any open file.
Coverage
Coverage and further reading.
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