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Case Description

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Summary based on 1 source
In the quiet community of Long Valley, New Jersey, the first day of 1990 marked the beginning of a lasting and sorrowful mystery for the family of Kevin J. Costelloe. At 33 years old, Kevin, a male with brown hair that held a reddish tint and blue eyes, was last seen on January 1st of that year. The last known location where he was seen was his father's residence in the Morris County town. Standing between 5'8" and 5'10" and weighing between 160 and 180 pounds, Kevin's physical presence was a familiar part of his family's life, a life that was irrevocably altered when he seemingly vanished without a trace. The specific circumstances of his disappearance remain unclear, with no public record detailing what he was wearing or his state of mind on that New Year's Day.

Decades have passed since Kevin J. Costelloe was last seen, and the void left by his absence has been filled only with unanswered questions. Official records and public databases dedicated to missing persons offer scant details beyond the fundamental facts of his case. Information regarding his personal life, his relationships, or any potential reasons for his disappearance is not publicly available. This lack of information has made it incredibly difficult for a clear picture of the events leading up to his disappearance to be formed, leaving only the stark reality that on one day he was present in the lives of those who knew him, and the next, he was gone.

The investigation into Kevin's disappearance has been handled by the New Jersey State Police Missing Persons Unit. Despite the passage of time, his case remains open, a silent testament to a life interrupted. The lack of available details in the public domain suggests a case with few leads, a painful reality for any family seeking closure. The overview of Kevin J. Costelloe's case is one of profound and enduring uncertainty. A man in his early thirties disappeared from a place of family comfort, and with no witnesses to what happened next and no evidence to point the way, his story is one of an unsettling and unresolved absence.

Last Seen: Jan 1, 1990

Links to Additional Sources (1)

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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.

77%Possible
John Doe — Carteret, New Jersey
UP1701 • Found Jan 6, 1998
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Sex ✓Male
Age 100%Est. 28–38 vs 33 when missing
Race 100%White
Location 75%Same state
TimingFound 8 years after last seen
Height 100%5'8" vs 5'8"
Weight 99%177 lb vs 160 lb
76%Possible
John Doe — Union Beach, New Jersey - unidentified case UP1536
John Doe — Union Beach, New Jersey
UP1536 • Found May 15, 2002
View case
Sex ✓Male
Age 100%Est. 35–50 vs 33 when missing
Race 100%White
Location 75%Same state
TimingFound 12 years after last seen
Height 100%5'7" vs 5'8"
Weight 100%160 lb vs 160 lb
Hair 50%Brown vs Red
75%Possible
John Doe — Camden, New Jersey - unidentified case UP15642
John Doe — Camden, New Jersey
UP15642 • Found Dec 16, 1999
View case
Sex ✓Male
Age 100%Est. 25–35 vs 33 when missing
Race 100%White
Location 75%Same state
TimingFound 10 years after last seen
Height 100%5'8" vs 5'8"
Weight 70%120 lb vs 160 lb
Hair 50%Brown vs Red
75%Possible
John Doe — Newark, New Jersey
UP1607 • Found Oct 13, 1998
View case
Sex ✓Male
Age 100%Est. 30–40 vs 33 when missing
Race 100%White
Location 75%Same state
TimingFound 9 years after last seen
Height 100%5'8" vs 5'8"
Weight 61%205 lb vs 160 lb
Hair 50%Brown vs Red
75%Possible
John Doe — Old Bridge Township, New Jersey - unidentified case UP1496
John Doe — Old Bridge Township, New Jersey
UP1496 • Found Dec 9, 1996
View case
Sex ✓Male
Age 100%Est. 25–35 vs 33 when missing
Race 100%White
Location 75%Same state
TimingFound 7 years after last seen
Height 100%5'9" vs 5'8"
Weight 95%180 lb vs 160 lb
Eyes 0%Brown vs Blue
75%Possible
John Doe — Edison, New Jersey
UP1700 • Found May 21, 1996
View case
Sex ✓Male
Age 95%Est. 40–55 vs 33 when missing
Race 100%White
Location 75%Same state
TimingFound 6 years after last seen
Height 84%5'6" vs 5'8"
Weight 100%170 lb vs 160 lb

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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