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302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP28398) and 8 other sources
In the summer of 1990, a quiet and deeply religious woman named Theresa Anne Wallace vanished from her home in Urbana, Illinois, leaving behind a series of baffling clues that have puzzled investigators for decades. On July 20, 1990, the 34-year-old was last seen at her apartment located in the 1100 block of South Lierman Avenue. She had made several phone calls that day and reportedly told someone she was planning to visit the local library, though it remains uncertain if she ever reached her destination. This was the last time anyone is known to have seen or heard from Theresa. Her life was marked by a gentle nature and a strong faith, being an active member of the New Life Church. It was her absence from church services that first raised alarms among her friends, who then contacted her mother. Four days after she was last seen, on July 24, her family officially reported her missing.

The mystery deepened as peculiar details about her vehicle emerged. On the same evening of her disappearance, Theresa's silver 1985 Chrysler LeBaron was spotted at the Clark-Lindsey Village, a retirement home where she had no apparent connections. Eight days after she vanished, on July 28, police located her abandoned car in a residential area in the 2000 block of South Vawter Street. The state in which the car was found suggested that Theresa was not the last person to drive it. The steering wheel was tilted to its highest position, a setting unsuitable for a driver of her stature. Inside the vehicle, a strange discovery was made: three couch cushions were in the back seat. Despite her known hobby of furniture shopping, these cushions did not match any of her belongings, nor could they be traced to local stores. Furthermore, the religious pamphlets she always kept in her car were gone. Crucially, her personal belongings, including her purse and keys, were also missing and have never been recovered.

Theresa's disappearance is especially heartbreaking due to her personal vulnerabilities. As a teenager, she was involved in a serious car accident that caused a traumatic brain injury. This left her with mild mental disabilities, including a poor sense of direction, short-term memory loss, and a trusting nature that may have made her susceptible to manipulation. She relied on routine and was in constant contact with her family and friends. The overview of this case reveals a perplexing scenario: a vulnerable woman disappears without a trace, and her car is found under suspicious circumstances. The unexplained presence of the vehicle at the retirement home, the mysterious couch cushions, the adjusted steering wheel, and the absence of her personal items create a collection of unanswered questions. Decades have passed, but the circumstances surrounding Theresa Wallace's vanishing remain an unsolved and sorrowful mystery.

Last Seen: Jul 20, 1990

Possible Unidentified Matches (3)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

75%Possible
Jane Doe — Illinois
UP15441 • Found Mar 16, 2016
View case
Sex ✓Female
Age 100%Est. 38–52 vs 34 when missing
Race 100%White
Location 62%166 mi away, same state
TimingFound 26 years after last seen
Height 100%5'4" vs 5'3"–5'4"
Weight 99%125 lb vs 140–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
Jane Doe — Casey, Illinois - unidentified case UP11748
Jane Doe — Casey, Illinois
UP11748 • Found Oct 18, 2013
View case
Sex ✓Female
Age 85%Est. 20–40 vs 34 when missing
Race 100%White
Location 88%56 mi away, same state
TimingFound 23 years after last seen
Height 100%5'3" vs 5'3"–5'4"
Weight 100%140 lb vs 140–150 lb
Hair 60%Black vs Brown
75%Possible
Jane Doe — South Bend, Indiana - unidentified case UP782
Jane Doe — South Bend, Indiana
UP782 • Found Dec 29, 1996
View case
Sex ✓Female
Age 100%Est. 21–35 vs 34 when missing
Race 100%White
Location 66%145 mi away
TimingFound 6 years after last seen
Height 84%5'1" vs 5'3"–5'4"
Weight 79%110 lb vs 140–150 lb
Hair 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.