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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 (MP117887) and 4 other sources
In the winter of 2023, concerns began to mount for 56-year-old Thomas John Manzey. His life, as his family knew it, seemed to take an unexpected turn when he abruptly quit his job on December 23rd. The last time his family saw him was on Christmas Eve, December 24th, 2023. Following this last sighting, his whereabouts became increasingly uncertain. Authorities in Arizona did report making contact with him in January of 2024, but no further communication has been established since that time. He was last known to be in Phoenix, Arizona, and was officially reported missing on January 17, 2024. Thomas is a white male, standing at 6 feet tall and weighing around 200 pounds. He has gray or partially gray hair and blue eyes. At times, he has been known to have a long, gray full beard or a goatee.

The circumstances leading up to his disappearance have left his loved ones with many unanswered questions. The sudden departure from his job just before the holidays, followed by the limited contact, painted a concerning picture for those who know him. The Sioux Falls Police Department in South Dakota is the primary investigating agency in his case, suggesting a connection to that area, although he was last seen in Phoenix. The lack of information regarding his means of travel or any potential destinations has made the search for him particularly challenging for law enforcement and his family.

The investigation into Thomas Manzey's disappearance remains active as officials continue to seek information that could lead to his whereabouts. The gap in communication since the January contact in Arizona is a significant source of worry. The case is a heart-wrenching example of how someone can suddenly become disconnected from their established life, leaving a void for their family and friends. The overview of this case highlights an individual who, for unknown reasons, distanced himself from his normal life, culminating in a mysterious disappearance that spans across state lines from South Dakota to Arizona.

Last Seen: Jan 17, 2024

Possible Unidentified Matches (1)

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.

83%Moderate
John Doe — Peoria, Arizona - unidentified case UP142022
John Doe — Peoria, Arizona
UP142022 • Found Feb 12, 2025
View case
Sex ✓Male
Age 100%Est. 57–70 vs 56 when missing
Race 100%White
Location 96%26 mi away, same county
TimingFound 13 months after last seen
Height 84%5'10" vs 6'0"
Weight 70%120–150 lb vs 200 lb
Hair 100%Gray vs Gray

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.