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 (MP23903) and 3 other sources
In the autumn of 1999, a 27-year-old man named Gregory Lamont Smart disappeared from Clayton, Missouri. Known to his loved ones as Greg or Tupa, he was a physically imposing man, standing six feet tall and weighing around 230 pounds. The circumstances surrounding the day he vanished in November of that year are unclear, leaving his family with decades of unanswered questions. When he was last seen, he was wearing tan pants and a green shirt. His disappearance marked the beginning of a long and painful journey for those who knew and loved him, a journey with no clear path or destination.

Gregory was a man with distinct features that set him apart. He had short black hair and brown eyes. His body told a story through its various marks; a scar was visible on his right cheek, and another marked one of his fingers on his right hand. He also had numerous tattoos, including one on his upper left arm, though the specific details of his other body art are not widely known. These physical descriptors create a picture of the man whose sudden absence left a void in the lives of his family. These are the details they hold onto, the identifying marks that they hope might one day lead to answers about where he went and what happened to him.

For many years, the search for Gregory has continued, though information regarding the exact date he went missing remains vague. The Saint Louis County Police Department has been handling his case, navigating the complexities that come with an investigation that has stretched across decades. In a poignant effort to aid the search, Gregory's mother provided her DNA, a sample that has been processed and is actively being compared against national databases in the hope of a future match. The overview of this case is one of enduring uncertainty and a family's quiet, persistent hope for resolution. The passage of time has not diminished the need for answers, and the investigation into the disappearance of Gregory Lamont Smart remains an open wound for his community and loved ones, a story without an ending.

Last Seen: Nov 1, 1999

Possible Unidentified Matches (3)

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.

76%Possible
John Doe — East St. Louis, Illinois - unidentified case UP12013
John Doe — East St. Louis, Illinois
UP12013 • Found Aug 23, 2007
View case
Sex ✓Male
Age 64%Est. 40–60 vs 27 when missing
Race 100%Black
Location 100%9 mi away
TimingFound 8 years after last seen
Height 100%6'0" vs 6'0"
Weight 100%220 lb vs 230 lb
Hair 40%Gray vs Black
75%Possible
John Doe — Chicago, Illinois
UP129335 • Found Aug 14, 2004
View case
Sex ✓Male
Age 100%Est. 25–35 vs 27 when missing
Race 100%Black
Location 48%271 mi away
TimingFound 5 years after last seen
Height 100%6'0" vs 6'0"
Weight 73%176 lb vs 230 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
75%Possible
John Doe — Lemont, Illinois
UP8488 • Found Jan 27, 2010
View case
Sex ✓Male
Age 100%Est. 21–35 vs 27 when missing
Race 100%Black
Location 51%243 mi away
TimingFound 10 years after last seen
Height 100%6'0" vs 6'0"
Weight 94%200 lb vs 230 lb
Hair 100%Black vs Black
Eyes 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.