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Crime Solvers Central
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 (MP9692) and 10 other sources
Peggy Dianovsky was a 28-year-old mother of three young sons when she was last seen at her home in Schaumburg, Illinois. At the time of her disappearance, Peggy and her husband, Robert Dianovsky Sr., were embroiled in a contentious divorce and a battle for custody of their children. The couple had a history of volatile arguments, with both accusing the other of infidelity. Robert Dianovsky Sr. told authorities that Peggy had left their home on her own accord, taking a bag of clothes with her. However, Peggy's family found this highly uncharacteristic, as she was a devoted mother who would not have willingly abandoned her children. Adding to the suspicion, Peggy's yellow Chevrolet Nova was left behind, and she never collected her final paycheck from her job at Dominick's. Five days after she was last seen, her husband reported her missing.

The investigation into Peggy's disappearance uncovered unsettling details. A blood spatter was found at the top of the staircase in the Dianovsky home, though it was never collected for analysis at the time. Robert Dianovsky Sr. admitted to striking his wife with enough force to cause bleeding, claiming this was the origin of the stain, but he denied killing her. Sometime after his wife's disappearance, he moved to Arizona with their three sons and remarried. The case grew colder over the years until 2002, when the Dianovskys' three sons, now adults, approached the police. They had recorded conversations with their father in which he made suspicious statements about Peggy's vanishing. The sons also revealed that they had witnessed their father abusing and threatening their mother, with one son claiming to have witnessed her murder. They explained that they had repressed these traumatic memories, which later resurfaced during therapy sessions in their adulthood. A friend of Robert's also came forward, testifying that Robert had asked him for a gun to 'get rid of' Peggy back in 1982.

In 2003, Robert Dianovsky Sr. was charged with the murder of his wife, Peggy. The trial, which took place before a judge rather than a jury, concluded in November 2004 with an acquittal. The judge stated that while he believed Peggy had likely been murdered, there was insufficient evidence to prove beyond a reasonable doubt that her husband was responsible. The inconsistencies in the testimony of key witnesses were cited as a factor in the verdict. Peggy Dianovsky's body has never been found, and her case remains a painful and unresolved mystery. Foul play is suspected due to the turbulent circumstances surrounding her disappearance and the subsequent investigation that pointed towards a history of domestic turmoil. The conflicting accounts, the passage of time, and the lack of physical evidence have all contributed to the enduring questions in this troubling case.

Last Seen: Sep 12, 1982

Possible Unidentified Matches (6)

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.

80%Moderate
Jane Doe — Chicago, Illinois
UP138168 • Found Apr 19, 2001
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Sex ✓Female
Age 100%Est. 30–45 vs 28 when missing
Race 100%White
Location 96%26 mi away, same county
TimingFound 19 years after last seen
Height 100%5'6" vs 5'6"
Weight 100%139 lb vs 125–130 lb
77%Possible
Jane Doe — Chicago, Illinois
UP118571 • Found Nov 1, 1995
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Sex ✓Female
Age 100%Est. 20–29 vs 28 when missing
Race 100%White
Location 96%26 mi away, same county
TimingFound 13 years after last seen
Height 52%5'2" vs 5'6"
Weight 100%117 lb vs 125–130 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
76%Possible
Jane Doe — Chicago, Illinois - unidentified case UP129197
Jane Doe — Chicago, Illinois
UP129197 • Found Dec 22, 2000
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Sex ✓Female
Age 100%Est. 40–50 vs 28 when missing
Race 100%White
Location 97%20 mi away, same county
TimingFound 18 years after last seen
Height 100%5'6" vs 5'6"
Weight 0%238 lb vs 125–130 lb
Hair 100%Brown vs Brown
Eyes 0%Blue vs Brown
76%Possible
Jane Doe — Chicago, Illinois
UP12807 • Found Aug 2, 2006
View case
Sex ✓Female
Age 85%Est. 18–40 vs 28 when missing
Race 100%White
Location 96%26 mi away, same county
TimingFound 24 years after last seen
Height 100%5'5" vs 5'6"
Weight 81%155 lb vs 125–130 lb
Hair 60%Black vs Brown
75%Possible
Jane Doe — Calumet City, Illinois
UP129084 • Found Apr 3, 1996
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Sex ✓Female
Age 100%Est. 23–31 vs 28 when missing
Race 100%White
Location 92%40 mi away, same county
TimingFound 14 years after last seen
Height 75%5'3"–5'10" vs 5'6"
75%Possible
Jane Doe — Chicago, Illinois
UP129052 • Found Apr 2, 1993
View case
Sex ✓Female
Age 100%Est. 21–31 vs 28 when missing
Race 100%White
Location 95%29 mi away, same county
TimingFound 11 years after last seen
Height 68%4'9"–5'3" vs 5'6"

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.

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