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 (MP7166) and 7 other sources
Robert Louis Grossman, age 18, was last seen on August 3, 1997, in Boca Raton, Florida. That evening, he had a brief argument with his mother over his work schedule and left their home on foot at around 9:30 p.m. He was only wearing blue shorts and had no shirt, shoes, money, or identification with him. His family initially believed he had gone to stay with friends to cool off, but after two days of no contact, they reported him missing.

Grossman, who was a senior at Spanish River High School and worked part-time as a camp counselor, was known for being a bright and responsible young man with plans to attend college. His family has long suspected foul play in his disappearance, especially after his girlfriend received a phone call claiming that his body had been dumped in a canal. However, searches of the canal and surrounding areas turned up no evidence.

Despite extensive efforts, Grossman has never been located, and the circumstances of his disappearance remain unclear. His case is being investigated by the Palm Beach County Sheriff's Office, but after more than two decades, it remains unsolved.

Last Seen: Aug 3, 1997

Possible Unidentified Matches (9)

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.

79%Possible
John Doe — Miami, Florida
UP6083 • Found Apr 29, 2002
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Sex ✓Male
Age 85%Est. 20–40 vs 18 when missing
Race 100%White
Location 91%42 mi away, same state
TimingFound 5 years after last seen
Height 100%5'10" vs 5'9"
Weight 98%120 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
79%Possible
John Doe — Miami, Florida - unidentified case UP5788
John Doe — Miami, Florida
UP5788 • Found Jul 22, 2000
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Sex ✓Male
Age 85%Est. 20–40 vs 18 when missing
Race 100%White
Location 91%42 mi away, same state
TimingFound 3 years after last seen
Height 100%5'9" vs 5'9"
Weight 100%130 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — Miami, Florida - unidentified case UP1031
John Doe — Miami, Florida
UP1031 • Found Aug 26, 2004
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Sex ✓Male
Age 85%Est. 25–50 vs 18 when missing
Race 100%White
Location 91%42 mi away, same state
TimingFound 7 years after last seen
Height 100%5'10" vs 5'9"
Weight 95%152 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
77%Possible
John Doe — West Palm Beach, Florida
UP7797 • Found Sep 25, 2005
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Sex ✓Male
Age 85%Est. 25–49 vs 18 when missing
Race 100%White
Location 96%24 mi away, same county
TimingFound 8 years after last seen
Height 100%5'8" vs 5'9"
Weight 67%100 lb vs 135 lb
Hair 50%Blond vs Brown
77%Possible
John Doe — Boca Raton, Florida - unidentified case UP1068
John Doe — Boca Raton, Florida
UP1068 • Found Nov 21, 2000
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Sex ✓Male
Age 100%Est. 21–35 vs 18 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 3 years after last seen
Height 36%5'4" vs 5'9"
Weight 87%113 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
Sex ✓Male
Age 100%Est. 18–32 vs 18 when missing
Race 100%White
Location 92%40 mi away, same county
TimingFound 20 years after last seen
Height 84%5'7" vs 5'9"
Weight 100%142 lb vs 135 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
75%Possible
John Doe — Miami Gardens, Florida - unidentified case UP93483
John Doe — Miami Gardens, Florida
UP93483 • Found Jul 5, 2022
View case
Sex ✓Male
Age 85%Est. 20–40 vs 18 when missing
Race 100%White
Location 95%30 mi away, same state
TimingFound 25 years after last seen
Height 84%5'11" vs 5'9"
Weight 100%124 lb vs 135 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
75%Possible
John Doe — Miami, Florida - unidentified case UP5171
John Doe — Miami, Florida
UP5171 • Found Feb 22, 2007
View case
Sex ✓Male
Age 100%Est. 20–35 vs 18 when missing
Race 100%White
Location 91%42 mi away, same state
TimingFound 10 years after last seen
Height 75%5'2"–5'9" vs 5'9"
75%Possible
John Doe — Boca Raton, Florida
UP96 • Found Apr 19, 2006
View case
Sex ✓Male
Age 60%Est. 20–60 vs 18 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 9 years after last seen
Height 100%5'8" vs 5'9"
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.

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