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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 (MP6255) and 9 other sources
In the summer of 1985, a 17-year-old musician named John P. Katsilieris vanished from his family's home in Oak Park, Illinois. The exact date of his departure is somewhat vague, though it is most frequently cited as August 15, 1985. When he left, John, a tall young man with brown hair and blue eyes, took with him his five guitars, suggesting a purpose behind his journey. It is widely believed that his destination was California, a state often seen as a land of opportunity for aspiring musicians. He was reportedly wearing blue jeans and tennis shoes at the time of his disappearance.

The days following his departure from Illinois are shrouded in some uncertainty. While he was last seen by his family in Oak Park, some accounts place him in Santa Ana, California, on August 16, 1985, just a day after he left home. Since that last possible sighting, there has been a profound and devastating silence. No one has reported hearing from John Katsilieris again. The circumstances surrounding his disappearance are considered suspicious, and with so few details available, the case has remained a painful mystery for his loved ones and investigators. The Santa Ana Police Department in California is handling the investigation into his disappearance.

The case of John P. Katsilieris is a story of a young man with a passion for music who seemingly set off to chase a dream, only to disappear without a trace. The passage of time has not diminished the questions that linger. Investigators have utilized tools such as age-progressed photos to provide a glimpse of what John might look like as the years have gone by. His family has also provided DNA samples to aid in the search. Despite these efforts, the lack of concrete leads has left the case unsolved. The narrative of his disappearance is a stark and somber reminder of the fragility of life and the enduring pain of not knowing the fate of a loved one. The few available details paint a picture of a hopeful young artist whose journey was tragically cut short, leaving a void filled only with questions and the enduring hope for answers.

Last Seen: Aug 15, 1985

Possible Unidentified Matches (8)

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.

78%Possible
John Doe — River Forest, Illinois
UP129046 • Found May 2, 1994
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Sex ✓Male
Age 100%Est. 25–35 vs 17 when missing
Race 100%White
Location 100%2 mi away, same county
TimingFound 9 years after last seen
Height 84%5'7"–6'0" vs 6'2"
78%Possible
John Doe — Chicago, Illinois - unidentified case UP11512
John Doe — Chicago, Illinois
UP11512 • Found May 2, 2013
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Sex ✓Male
Age 98%Est. 45–60 vs 17 when missing
Race 100%White
Location 100%8 mi away, same county
TimingFound 28 years after last seen
Height 68%5'11" vs 6'2"
Weight 100%149 lb vs 160 lb
Hair 100%Brown vs Brown
78%Possible
John Doe — Chicago, Illinois
UP139126 • Found Jun 8, 2006
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Sex ✓Male
Age 99%Est. 38–52 vs 17 when missing
Race 100%White
Location 100%6 mi away, same county
TimingFound 21 years after last seen
Height 100%6'1" vs 6'2"
Weight 100%150 lb vs 160 lb
Eyes 0%Brown vs Blue
77%Possible
John Doe — Illinois - unidentified case UP14344
John Doe — Illinois
UP14344 • Found Mar 16, 1986
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Sex ✓Male
Age 72%Est. 20–30 vs 17
Race 100%White
Location 100%11 mi away, same county
TimingFound 7 months after last seen
Height 36%5'9" vs 6'2"
Weight 95%140 lb vs 160 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
76%Possible
John Doe — Illinois
UP79964 • Found Mar 12, 2021
View case
Sex ✓Male
Age 100%Est. 35–50 vs 17 when missing
Race 100%White
Location 100%11 mi away, same county
TimingFound 36 years after last seen
Height 84%5'6"–6'0" vs 6'2"
Weight 40%103 lb vs 160 lb
Hair 70%Gray vs Brown
76%Possible
John Doe — Chicago, Illinois
UP129118 • Found Apr 1, 1999
View case
Sex ✓Male
Age 100%Est. 25–35 vs 17 when missing
Race 100%White
Location 100%6 mi away, same county
TimingFound 14 years after last seen
Height 52%5'10" vs 6'2"
Weight 96%179 lb vs 160 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
75%Possible
John Doe — Chicago, Illinois
UP129132 • Found Oct 3, 2000
View case
Sex ✓Male
Age 76%Est. 35–50 vs 17 when missing
Race 100%White
Location 100%8 mi away, same county
TimingFound 15 years after last seen
Height 100%5'8"–6'1" vs 6'2"
75%Possible
John Doe — Chicago, Illinois
UP14307 • Found Aug 15, 1985
View case
Sex ✓Male
Age 88%Est. 18–25 vs 17
Race 100%White
Location 100%8 mi away, same state
TimingFound same day as last seen
Height 4%5'7" vs 6'2"
Weight 100%151 lb vs 160 lb
Hair 100%Brown vs Brown
Eyes 50%Green vs Blue

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.