TAMMY J. ZYWICKI
Current age (if alive)
55
Gender
female
Date of case
8/23/1992
Country
United States
State / Province
Missouri
City
Lawrence County
Physical Description
Height
157 cm
Weight
54 kg
Eye color
Green
Hair color
Blonde
Ethnicity
White
Additional Photos
Details
On August 23, 1992, Tammy J. Zywicki departed Evanston, Illinois, for college in Grinnell, Iowa, where she was expected to arrive that evening. Later that day, Zywicki's car was found by an Illinois State Trooper and ticketed as being abandoned. On August 24, 1992, the vehicle was towed by the Illinois State Police. On that same evening, Zywicki's mother contacted the Illinois State Police and advised them that her daughter had not arrived at college. On September 1, 1992, Zywicki's body was located along Interstate Highway 44 (I-44) in rural Lawrence County, Missouri, which is located between Springfield and Joplin, Missouri. She had been stabbed to death.
Remarks
Zywicki was reportedly last seen with her car (shown above) at mile marker 83 on I-80 in Central Illinois, between 3:10 p.m. and 4:00 p.m. on August 23, 1992. It was also reported that a tractor/trailer was seen near Zywicki's vehicle during this time period. The driver of the tractor/trailer is described as a white male between 35 and 40 years of age, over six feet tall, with dark, bushy hair. Some of the victim's personal property is known to be missing, including a Cannon 35mm camera and a musical wrist watch. The watch is Lorus brand, with a green umbrella on its face and a green band. The watch plays the tune "Raindrops Keep Falling On My Head." Zywicki may have had, or was in possession of, a soccer club patch similar to the one pictured above.
Reward
The FBI is offering a reward of up to $50,000 for information leading to the identification of the individual or individuals responsible for this crime.
Last updated: 5/30/2026