As the 25th anniversary of her kidnapping and murder nears, Illinois State Police and the FBI are asking for the public’s help for information on Tammy J. Zywicki.

Zywicki was reportedly last seen with her car on Interstate 80 at mile marker 83 in LaSalle County, Illinois, between 3:10 and 4 p.m. on August 23, 1992. She had departed Evanston, Illinois for college in Grinnell, Iowa, where she was expected to arrive that evening. Later that day, Zywicki’s car, a 1985 White Pontiac T1000, was found by an Illinois State Police trooper and marked as being abandoned. The car was towed the next day, but it was reported that a semi truck was seen near Zywicki’s vehicle. The truck driver was described as a white male between 35 and 40 years-of-age, over six feet tall, with dark, bushy hair.

That evening, Zywicki’s mother contacted the Illinois State Police and advised that her daughter had not arrived at college. On September 1, 1992, Tammy’s body was located along Interstate 44 in rural Lawrence County, Missouri, between Joplin and Springfield, Missouri. She had been stabbed to death. 

Some of Zywicki’s personal property are known to be missing, including a Canon 35mm camera, a red and white soccer patch monogrammed with “St. Giles Soccer Club, Greenville, South Carolina,” and a Lorus brand musical wrist watch, which played the tune “Raindrops Keep Falling On My Head,” with a green umbrella on its face and a green band.

The FBI and Illinois State Police continue exploring new leads, examining 200 items of evidence, and retesting items with modern DNA technology.

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.

Anyone with information is asked to contact the ISP at (815) 726-6377, or the FBI Chicago Field Division at (312) 421-6700. Callers can remain anonymous.

Police seek help in 1992 Tammy J. Zywicki murder Zywicki’s camera, soccer patch and musical watch still missing. — Local 4 WHBF (@Local4NewsWHBF) August 22, 2017