Crime Solvers Central
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 (MP117100) and 3 other sources
Robert Duncan, a 27-year-old man, was last seen on April 27, 1990, in Jacksonville, Florida. Despite efforts by local authorities and search teams, his disappearance remains unsolved. Duncan's case, like many others from that time, has drawn attention due to the mysterious circumstances surrounding his vanishing.

At the time of his disappearance, Duncan had no known major issues that might explain why he went missing. Authorities have investigated various leads, but no significant breakthroughs have been reported. Over the years, the case has remained open, with occasional reviews and renewed public interest, but it continues to be classified as unsolved.

As with many missing persons cases from that era, advancements in technology and forensic science could potentially offer new avenues for investigation. However, for now, Robert Duncan’s disappearance remains a mystery, leaving his family and friends without closure. Public efforts to raise awareness about Duncan’s case and to encourage anyone with information to come forward continue to be a priority for investigators.

Last Seen: Apr 27, 1990

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.

82%Moderate
John Doe — Jacksonville, Florida - unidentified case UP1127
John Doe — Jacksonville, Florida
UP1127 • Found Nov 18, 1994
View case
Sex ✓Male
Age 100%Est. 21–35 vs 27 when missing
Race 100%White
Location 98%16 mi away, same county
TimingFound 5 years after last seen
Height 68%5'6" vs 5'9"
Weight 90%149 lb vs 175 lb
Hair 100%Brown vs Brown
Eyes 100%Blue vs Blue
81%Moderate
John Doe — Baldwin, Florida - unidentified case UP748
John Doe — Baldwin, Florida
UP748 • Found Sep 23, 1996
View case
Sex ✓Male
Age 100%Est. 33–42 vs 27 when missing
Race 100%White
Location 100%10 mi away, same county
TimingFound 6 years after last seen
Height 100%5'9" vs 5'9"
79%Possible
John Doe — Jacksonville, Florida - unidentified case UP747
John Doe — Jacksonville, Florida
UP747 • Found Aug 28, 1998
View case
Sex ✓Male
Age 100%Est. 30–45 vs 27 when missing
Race 100%White
Location 96%25 mi away, same county
TimingFound 8 years after last seen
Height 100%5'10" vs 5'9"
79%Possible
John Doe — Silver Springs, Florida - unidentified case UP6052
John Doe — Silver Springs, Florida
UP6052 • Found Dec 29, 1992
View case
Sex ✓Male
Age 100%Est. 17–30 vs 27 when missing
Race 100%White
Location 83%71 mi away, same state
TimingFound 3 years after last seen
Height 84%5'11" vs 5'9"
Weight 100%160 lb vs 175 lb
77%Possible
John Doe — Florida - unidentified case UP1363
John Doe — Florida
UP1363 • Found Dec 8, 1990
View case
Sex ✓Male
Age 100%Est. 21–35 vs 27
Location 98%16 mi away, same county
TimingFound 7 months after last seen
Height 100%5'10" vs 5'9"
Weight 100%163 lb vs 175 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
75%Possible
John Doe — Jacksonville, Florida - unidentified case UP13256
John Doe — Jacksonville, Florida
UP13256 • Found Aug 21, 2011
View case
Sex ✓Male
Age 85%Est. 48–70 vs 27 when missing
Race 100%White
Location 98%16 mi away, same county
TimingFound 21 years after last seen
Height 100%5'9" vs 5'9"

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.