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

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP12723) and 11 other sources
On the last day of 1975, a 19-year-old college student named Michael Mansfield was at his parents' home in Rolling Meadows, Illinois, for the holiday break. A 1974 graduate of Rolling Meadows High School, Michael was studying at Lincoln College where he worked at the campus radio station and dreamed of becoming a music director. He was known to frequent record stores in the area. That afternoon, at approximately 2:00 p.m., the phone rang at his family's residence in the 3900 block of Gull Court. After the call, Michael told his mother he was going out to visit a friend in Arlington Heights and would be back in about an hour. He left the house wearing a tan buckskin coat with a fleece collar, a brown print shirt, blue jeans or light brown pants, and white tennis shoes, leaving his wallet behind. Michael Mansfield was never seen or heard from again.

Michael's disappearance occurred just six days before he was scheduled to testify in court against his former college roommate, Russell Smrekar. Smrekar had been charged with burglary and petty theft, accused of stealing a guitar and 80 record albums from a women's dormitory at Lincoln College. Michael was a key witness in the case, as he had seen Smrekar with the stolen items in their shared room. Fearing he might be implicated, Michael had initially hidden the items. While he was at first charged with hiding evidence, the charges were dropped in exchange for his testimony against Smrekar. Michael had already testified before the college's judicial board, which resulted in Smrekar's expulsion.

For decades, Michael's family was left without answers. His parents eventually moved to Florida, and his mother passed away in 2014, never knowing what became of her son. The case took a significant turn in October 2011 when Russell Smrekar, who was by then serving a lengthy prison sentence for a 1976 double murder, made a deathbed confession. Shortly before dying of a terminal illness, Smrekar admitted to killing both Michael Mansfield and another witness, Ruth Martin, who also disappeared before she could testify against him in a separate case. Following Smrekar's confession, investigators closed the missing persons cases for both Mansfield and Martin, although Smrekar did not reveal the location of their remains. In early 2017, based on credible leads, police conducted an extensive search of a residential property in Will County connected to Smrekar's relatives, but no human remains were found. Despite the confession, the body of Michael Mansfield has never been recovered, leaving his loved ones with an incomplete and painful sense of closure.

Last Seen: Dec 31, 1975

Possible Unidentified Matches (10)

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.

84%Moderate
John Doe — Illinois - unidentified case UP14344
John Doe — Illinois
UP14344 • Found Mar 16, 1986
View case
Sex ✓Male
Age 100%Est. 20–30 vs 19 when missing
Race 100%White
Location 95%28 mi away, same county
TimingFound 10 years after last seen
Height 100%5'9" vs 5'10"
Weight 100%140 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
83%Moderate
John Doe — Norwood Park Township, Illinois
UP11000 • Found Dec 28, 1978
View case
Sex ✓Male
Age 100%Est. 15–24 vs 19 when missing
Race 100%White
Location 99%12 mi away, same county
TimingFound 3 years after last seen
Height 100%5'10" vs 5'10"
Hair 100%Brown vs Brown
83%Moderate
John Doe — Norwood Park Township, Illinois - unidentified case UP10999
John Doe — Norwood Park Township, Illinois
UP10999 • Found Dec 27, 1978
View case
Sex ✓Male
Age 100%Est. 18–22 vs 19 when missing
Race 100%White
Location 99%12 mi away, same county
TimingFound 3 years after last seen
Height 100%5'9"–6'2" vs 5'10"
Hair 100%Brown vs Brown
82%Moderate
John Doe — Norwood Park Township, Illinois - unidentified case UP10998
John Doe — Norwood Park Township, Illinois
UP10998 • Found Dec 26, 1978
View case
Sex ✓Male
Age 100%Est. 17–21 vs 19 when missing
Race 100%White
Location 99%12 mi away, same county
TimingFound 3 years after last seen
Height 100%5'7"–5'11" vs 5'10"
81%Moderate
John Doe — Chicago, Illinois - unidentified case UP129007
John Doe — Chicago, Illinois
UP129007 • Found Apr 12, 1991
View case
Sex ✓Male
Age 94%Est. 35–45 vs 19 when missing
Race 100%White
Location 96%24 mi away, same county
TimingFound 15 years after last seen
Height 100%5'9" vs 5'10"
Weight 69%169 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
81%Moderate
John Doe — Chicago, Illinois - unidentified case UP124460
John Doe — Chicago, Illinois
UP124460 • Found Jan 25, 1989
View case
Sex ✓Male
Age 100%Est. 25–35 vs 19 when missing
Race 100%White
Location 96%24 mi away, same county
TimingFound 13 years after last seen
Height 100%5'9" vs 5'10"
Weight 87%113 lb vs 135 lb
Hair 100%Brown vs Brown
81%Moderate
John Doe — Norwood Park Township, Illinois
UP11006 • Found Mar 9, 1979
View case
Sex ✓Male
Age 88%Est. 14–18 vs 19 when missing
Race 100%White
Location 99%12 mi away, same county
TimingFound 3 years after last seen
Height 100%5'9" vs 5'10"
Hair 100%Brown vs Brown
80%Moderate
John Doe — Chicago, Illinois - unidentified case UP11512
John Doe — Chicago, Illinois
UP11512 • Found May 2, 2013
View case
Sex ✓Male
Age 100%Est. 45–60 vs 19 when missing
Race 100%White
Location 96%24 mi away, same county
TimingFound 37 years after last seen
Height 100%5'11" vs 5'10"
Weight 99%149 lb vs 135 lb
Hair 100%Brown vs Brown
79%Possible
John Doe — Chicago, Illinois - unidentified case UP128976
John Doe — Chicago, Illinois
UP128976 • Found Nov 20, 1992
View case
Sex ✓Male
Age 100%Est. 35–45 vs 19 when missing
Race 100%White
Location 97%20 mi away, same county
TimingFound 17 years after last seen
Height 100%5'9" vs 5'10"
Weight 89%114 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
79%Possible
John Doe — Chicago, Illinois
UP124430 • Found Aug 1, 1989
View case
Sex ✓Male
Age 100%Est. 30–40 vs 19 when missing
Race 100%White
Location 96%24 mi away, same county
TimingFound 14 years after last seen
Height 100%5'10" vs 5'10"
Weight 34%186 lb vs 135 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.