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Crime Solvers Central
298 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 (MP12784) and 4 other sources
In the summer of 1979, a 21-year-old University of Cincinnati student named John Paul Koziatek vanished from his life in Cincinnati, Ohio, leaving behind a void of information and a case that would remain unsolved for decades. At the time of his disappearance, he was living with several other students in the vicinity of the 400 block of Dixmyth Avenue. Friends and housemates would be the ones to report him as a missing person on August 8, 1979, after not hearing from him for some time. John, who was known to his friends by the nickname 'Koz,' was described as a white male with brown hair and brown eyes, standing between 5'10' and 6'0' tall, and weighing around 150 pounds. At the time he went missing, he had long hair and a mustache.

John was known to be an intelligent individual with a keen interest in chemistry and biochemistry. According to a close friend, he was not experiencing any significant problems in his life or with his family leading up to his disappearance. However, it was noted that he had been feeling down about his academic performance at the university. In a move that would later puzzle investigators, John emptied his bank account before he was last seen. Despite this, he did not own a vehicle, adding another layer of complexity to his movements on the day he disappeared and in the time that followed.

The investigation into John Koziatek's disappearance was handled by the Cincinnati Police Department. Despite the passage of many years, his case has remained open, and he has never been heard from again. The circumstances surrounding his vanishing are opaque, with the last confirmed sighting of him being in Cincinnati. The lack of concrete leads or evidence has left his family and friends without answers. The case of John Koziatek is a somber reminder of the many individuals who go missing each year, their stories left unfinished and their loved ones waiting for a resolution that may never come.

Last Seen: Jul 30, 1979

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.

80%Moderate
John Doe — Cincinnati, Ohio - unidentified case UP7739
John Doe — Cincinnati, Ohio
UP7739 • Found Oct 27, 1988
View case
Sex ✓Male
Age 100%Est. 20–30 vs 21 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 9 years after last seen
Height 84%5'8" vs 5'10"–6'0"
Weight 100%137 lb vs 145–155 lb
Hair 100%Brown vs Brown
Eyes 0%Blue vs Brown
Sex ✓Male
Age 100%Est. 25–35 vs 21 when missing
Race 100%White
Location 100%9 mi away
TimingFound 20 years after last seen
Height 100%6'0" vs 5'10"–6'0"
Weight 80%185 lb vs 145–155 lb
77%Possible
John Doe — Detroit, Michigan
UP12031 • Found Jun 15, 1983
View case
Sex ✓Male
Age 100%Est. 20–30 vs 21 when missing
Race 100%White
Location 51%236 mi away
TimingFound 4 years after last seen
Height 100%5'9" vs 5'10"–6'0"
Weight 100%155 lb vs 145–155 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
76%Possible
John Doe — Erlanger, Kentucky - unidentified case UP76
John Doe — Erlanger, Kentucky
UP76 • Found Jan 25, 2003
View case
Sex ✓Male
Age 100%Est. 40–55 vs 21 when missing
Race 100%White
Location 100%8 mi away
TimingFound 23 years after last seen
Height 84%6'2" vs 5'10"–6'0"
76%Possible
John Doe — Floyds Knobs, Indiana
UP1845 • Found Sep 3, 1995
View case
Sex ✓Male
Age 100%Est. 32–45 vs 21 when missing
Race 100%White
Location 78%91 mi away
TimingFound 16 years after last seen
Height 100%5'9" vs 5'10"–6'0"
Hair 100%Brown vs Brown
75%Possible
John Doe — Jeffersonville, Indiana
UP114481 • Found Apr 27, 2005
View case
Sex ✓Male
Age 92%Est. 48–62 vs 21 when missing
Race 100%White
Location 79%87 mi away
TimingFound 26 years after last seen
Height 100%5'11" vs 5'10"–6'0"
Weight 100%138 lb vs 145–155 lb
Hair 70%Gray vs Brown
75%Possible
John Doe — Martinsville, Indiana - unidentified case UP14700
John Doe — Martinsville, Indiana
UP14700 • Found Sep 13, 1998
View case
Sex ✓Male
Age 100%Est. 28–38 vs 21 when missing
Race 100%White
Location 74%105 mi away
TimingFound 19 years after last seen
Height 100%6'0" vs 5'10"–6'0"
Weight 100%170 lb vs 145–155 lb
75%Possible
John Doe — Indianapolis, Indiana
UP117543 • Found Apr 3, 1992
View case
Sex ✓Male
Age 100%Est. 18–24 vs 21 when missing
Race 100%White
Location 69%129 mi away
TimingFound 13 years after last seen
Height 100%5'9"–5'11" vs 5'10"–6'0"
Weight 100%155–165 lb vs 145–155 lb
75%Possible
John Doe — Indiana - unidentified case UP4851
John Doe — Indiana
UP4851 • Found Jun 9, 1985
View case
Sex ✓Male
Age 100%Est. 20–30 vs 21 when missing
Race 100%White
Location 55%199 mi away
TimingFound 6 years after last seen
Height 100%5'11" vs 5'10"–6'0"
Weight 100%160 lb vs 145–155 lb
Hair 100%Brown vs Brown
75%Possible
John Doe — Pine Mountain in Letcher County, Kentucky - unidentified case UP105 View case
Sex ✓Male
Age 100%Est. 20–35 vs 21 when missing
Race 100%White
Location 62%167 mi away
TimingFound 2 years after last seen
Height 84%6'2" vs 5'10"–6'0"
Weight 73%190 lb vs 145–155 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.