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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 (MP9352) and 7 other sources
Mark Wade Potts is listed in NamUs as missing person MP9352, missing from Claymont, Delaware, with a listed date of last contact of May 11, 2009; however, several public case summaries describe the disappearance circumstances as occurring on May 11, 2010. Because the publicly available sources conflict on the year, the exact date should be treated with caution. Mark was a Black/African American man from Claymont, listed as 44 years old in some public case information, 5 feet 6 inches tall, about 185 pounds, with black hair and brown eyes. He is described as right-handed and as wearing gold-framed eyeglasses.

According to public missing-person profiles, Mark lived in the 2900 block of Green Street in Claymont. On the day he disappeared, he reportedly contacted his mother and told her he was struggling emotionally and financially. His mother, concerned for his safety, left her home in Chester, Pennsylvania, and went to check on him. When she arrived at Mark’s residence, he was not there, and his black 2003 GMC Yukon, bearing Delaware license plate PC478018, was also gone.

Later that morning, witnesses reportedly saw a man drive onto the Commodore Barry Bridge, exit the vehicle, and jump from the bridge into the Delaware River. Authorities later found Mark’s GMC Yukon on the bridge, with the keys still inside. Public case summaries state that he was not seen again after that incident and that no body was recovered. Because no remains were located, Mark has remained classified in public records as a missing person.

The case is associated with the New Castle County Police Department, and The Charley Project lists the investigating agency phone number as 302-395-8171. NamUs is a national clearinghouse used to store and compare missing-person, unidentified, and unclaimed-person case information, and public sources continue to reference Mark’s NamUs case number, MP9352.

Mark Potts’s case is a painful one for his family and community, especially because the reported circumstances point to a moment of acute distress but did not lead to the recovery of his remains. The lack of a recovery means his loved ones were left without the certainty and finality that families need. Publicly available sources do not indicate that Mark has been found alive or deceased, so the case remains presented as a missing-person case.

Last Seen: May 11, 2009

Possible Unidentified Matches (10)

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.

81%Moderate
John Doe — New York, New York - unidentified case UP12401
John Doe — New York, New York
UP12401 • Found Jul 1, 2013
View case
Sex ✓Male
Age 100%Est. 35–50 vs 44 when missing
Race 100%Black
Location 75%99 mi away
TimingFound 4 years after last seen
Height 100%5'5" vs 5'6"
Weight 86%154 lb vs 185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
79%Possible
John Doe — Brooklyn, New York - unidentified case UP77552
John Doe — Brooklyn, New York
UP77552 • Found Jan 9, 2021
View case
Sex ✓Male
Age 100%Est. 55–70 vs 44 when missing
Race 100%Black
Location 75%100 mi away
TimingFound 12 years after last seen
Height 100%5'6" vs 5'6"
Weight 100%186 lb vs 185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
79%Possible
John Doe — Philadelphia, Pennsylvania
UP155373 • Found Feb 9, 2026
View case
Sex ✓Male
Age 100%Est. 55–65 vs 44 when missing
Race 100%Black
Location 97%19 mi away
TimingFound 17 years after last seen
Height 68%5'9" vs 5'6"
Weight 72%141 lb vs 185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
78%Possible
John Doe — Brooklyn, New York - unidentified case UP6575
John Doe — Brooklyn, New York
UP6575 • Found May 25, 2009
View case
Sex ✓Male
Age 100%Est. 40–55 vs 44
Race 100%Black
Location 75%99 mi away
TimingFound 14 days after last seen
Height 68%5'9" vs 5'6"
Weight 100%180 lb vs 185 lb
Hair 100%Black vs Black
78%Possible
John Doe — Bronx, New York - unidentified case UP131597
John Doe — Bronx, New York
UP131597 • Found Sep 22, 2024
View case
Sex ✓Male
Age 100%Est. 35–50 vs 44 when missing
Race 100%Black
Location 72%113 mi away
TimingFound 15 years after last seen
Height 100%5'5" vs 5'6"
Weight 100%200 lb vs 185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
77%Possible
John Doe — Philadelphia, Pennsylvania
UP95929 • Found Aug 24, 2022
View case
Sex ✓Male
Age 100%Est. 43–58 vs 44 when missing
Race 100%Black
Location 96%24 mi away
TimingFound 13 years after last seen
Height 68%5'9"–5'11" vs 5'6"
Weight 100%190 lb vs 185 lb
Hair 40%Bald vs Black
77%Possible
John Doe — Brooklyn, New York - unidentified case UP91564
John Doe — Brooklyn, New York
UP91564 • Found May 6, 2022
View case
Sex ✓Male
Age 100%Est. 50–65 vs 44 when missing
Race 100%Black
Location 75%101 mi away
TimingFound 13 years after last seen
Height 100%5'6" vs 5'6"
Weight 70%139 lb vs 185 lb
Hair 70%Gray vs Black
Eyes 100%Brown vs Brown
77%Possible
John Doe — Philadelphia, Pennsylvania
UP14175 • Found Jun 7, 2015
View case
Sex ✓Male
Age 100%Est. 50–65 vs 44 when missing
Race 100%Black
Location 97%22 mi away
TimingFound 6 years after last seen
Height 52%5'10" vs 5'6"
Hair 100%Black vs Black
76%Possible
John Doe — Baltimore, Maryland
UP144239 • Found Nov 20, 2024
View case
Sex ✓Male
Age 97%Est. 60–69 vs 44 when missing
Race 100%Black
Location 83%71 mi away
TimingFound 16 years after last seen
Height 100%5'3"–5'6" vs 5'6"
Hair 100%Black vs Black
76%Possible
John Doe — Lawrence, New York - unidentified case UP154504
John Doe — Lawrence, New York
UP154504 • Found Dec 23, 2025
View case
Sex ✓Male
Age 85%Est. 45–65 vs 44 when missing
Race 100%Black
Location 74%107 mi away
TimingFound 17 years after last seen
Height 100%5'7" vs 5'6"
Weight 100%176 lb vs 185 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.