Crime Solvers Central
Crime Solvers Central
298 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 (MP34271) and 3 other sources
In the winter of 2003, concerns grew for 39-year-old Thomas Alfred Witwicky, a self-employed computer consultant living in Tucson, Arizona. The last time anyone had definitively heard from him was on February 11, 2003, when he made a phone call to his mother in Florida. That same day, he also logged onto his computer for the last time. Having relocated to Tucson from California two years prior, Thomas was living in the Pinnacle Heights Apartments. As weeks turned into a month with no word, the management of his apartment complex requested a welfare check in March, which led to the discovery that Thomas was missing.

Upon entering his apartment, investigators from the Pima County Sheriff's Department found it locked and in order, with no signs of a struggle or forced entry. Curiously, many of Thomas’s personal belongings, including his car, keys, wallet with cash and credit cards, were all left behind. However, a few key items were conspicuously absent: his handgun, a spare key, and his cell phone. The circumstances surrounding his disappearance were puzzling, as he seemed to have vanished from his life leaving most of his essential possessions behind.

The investigation into Thomas Witwicky's disappearance has continued over the years, but his case remains unsolved. The Pima County Sheriff's Department has kept the case open, and it is considered an endangered missing person case. With no significant leads or evidence to suggest his whereabouts or what might have happened to him, the lack of resolution has left his family and community with unanswered questions. The case is an overview of a man who was last in contact in early 2003, whose disappearance was discovered a month later under unusual circumstances, with personal effects both left and taken from his home, and whose whereabouts are still unknown.

Last Seen: Feb 10, 2003

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 — Arizona
UP5481 • Found Apr 22, 2005
View case
Sex ✓Male
Age 100%Est. 31–39 vs 39 when missing
Race 100%White
Location 91%44 mi away, same state
TimingFound 2 years after last seen
Height 100%5'8" vs 5'8"
79%Possible
John Doe — Arizona
UP2029 • Found Nov 23, 2003
View case
Sex ✓Male
Age 85%Est. 20–40 vs 39
Race 100%White
Location 73%112 mi away, same state
TimingFound 9 months after last seen
Height 100%5'9" vs 5'8"
Weight 100%161 lb vs 175 lb
Hair 100%Brown vs Brown
Eyes 60%Brown vs Hazel
78%Possible
John Doe — Tucson, Arizona - unidentified case UP6743
John Doe — Tucson, Arizona
UP6743 • Found Dec 15, 2007
View case
Sex ✓Male
Age 100%Est. 29–43 vs 39 when missing
Race 60%Hispanic
Location 100%Same area, same county
TimingFound 5 years after last seen
Height 100%5'7" vs 5'8"
Weight 86%145 lb vs 175 lb
Hair 60%Black vs Brown
78%Possible
John Doe — Phoenix, Arizona - unidentified case UP819
John Doe — Phoenix, Arizona
UP819 • Found Aug 2, 2007
View case
Sex ✓Male
Age 100%Est. 35–50 vs 39 when missing
Race 100%White
Location 73%111 mi away, same state
TimingFound 4 years after last seen
Height 100%5'9" vs 5'8"
Weight 97%155 lb vs 175 lb
Hair 60%Black vs Brown
Eyes 60%Brown vs Hazel
78%Possible
John Doe — Tucson, Arizona - unidentified case UP158804
John Doe — Tucson, Arizona
UP158804 • Found Dec 14, 2025
View case
Sex ✓Male
Age 100%Est. 48–62 vs 39 when missing
Race 100%White
Location 100%2 mi away, same county
TimingFound 23 years after last seen
Height 100%5'4"–5'8" vs 5'8"
76%Possible
John Doe — Tucson, Arizona - unidentified case UP102760
John Doe — Tucson, Arizona
UP102760 • Found Feb 9, 2023
View case
Sex ✓Male
Age 85%Est. 45–70 vs 39 when missing
Race 100%White
Location 100%2 mi away, same county
TimingFound 20 years after last seen
Height 100%5'4"–5'10" vs 5'8"
76%Possible
John Doe — Stanfield, Arizona - unidentified case UP10911
John Doe — Stanfield, Arizona
UP10911 • Found Dec 4, 2012
View case
Sex ✓Male
Age 100%Est. 35–50 vs 39 when missing
Race 100%White
Location 83%73 mi away, same state
TimingFound 10 years after last seen
Height 100%5'9" vs 5'8"
76%Possible
John Doe — Laveen, Arizona - unidentified case UP6601
John Doe — Laveen, Arizona
UP6601 • Found Nov 22, 2009
View case
Sex ✓Male
Age 100%Est. 30–45 vs 39 when missing
Race 100%White
Location 74%105 mi away, same state
TimingFound 7 years after last seen
Height 100%5'8" vs 5'8"
Weight 82%142 lb vs 175 lb
76%Possible
John Doe — Tucson, Arizona - unidentified case UP5369
John Doe — Tucson, Arizona
UP5369 • Found Jan 9, 2007
View case
Sex ✓Male
Age 100%Est. 29–43 vs 39 when missing
Location 100%Same area, same county
TimingFound 4 years after last seen
Height 100%5'8" vs 5'8"
76%Possible
John Doe — Amado, Arizona - unidentified case UP6864
John Doe — Amado, Arizona
UP6864 • Found Mar 21, 2006
View case
Sex ✓Male
Age 85%Est. 25–45 vs 39 when missing
Race 60%Hispanic
Location 93%36 mi away, same state
TimingFound 3 years after last seen
Height 100%5'7" vs 5'8"
Weight 100%159 lb vs 175 lb
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.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.