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 (MP9036) and 4 other sources
In the summer of 1981, 32-year-old Michael Willis Costlow was living in Phoenix, Arizona. He was last seen at his residence at 1445 1/2 East Garfield Street in August of that year. Details about his life, his occupation, and his relationships remain scarce, leaving a void in the narrative of his story. His disappearance is a long-standing mystery, marked by a few unsettling clues and decades of unanswered questions. Michael was a white male with light brown hair and blue eyes and wore prescription glasses. A notable physical characteristic was a missing right index finger.

The timeline of his disappearance is frustratingly vague, with the exact date of his last contact being unknown. His case gained a significant but perplexing development on September 30, 1981, when his vehicle, a blue 1971 Dodge Colt with Arizona license plate TXB155, was discovered. The car was found locked and unoccupied in the vast and remote Lake Mead area, a detail that has puzzled investigators and his family for years. Since the discovery of his car, there has been no sign of Michael, and he has not been seen or heard from again.

The investigation into Michael Costlow's disappearance is being handled by the Phoenix Police Department. However, public information about the investigation is very limited. It is a case characterized by a lack of substantial leads or publicly discussed theories. Over the years, his case has been listed in various missing persons' databases, a silent testament to a life interrupted and a family left without answers. The circumstances of his disappearance, a man vanishing from his home with his car later found abandoned in a scenic but desolate location, offer a narrative with no clear direction, leaving only a sense of unresolved loss. The overview of the case is one of a man who seemingly vanished, with the discovery of his locked car near Lake Mead being the last significant clue in a trail that has long since gone cold.

Last Seen: Aug 1, 1981

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.

84%Moderate
John Doe — Phoenix, Arizona - unidentified case UP1904
John Doe — Phoenix, Arizona
UP1904 • Found Aug 4, 1984
View case
Sex ✓Male
Age 100%Est. 25–40 vs 32 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 3 years after last seen
Height 100%5'9" vs 5'10"–6'1"
Weight 76%130 lb vs 170–190 lb
Hair 100%Brown vs Brown
82%Moderate
John Doe — Phoenix, Arizona - unidentified case UP1956
John Doe — Phoenix, Arizona
UP1956 • Found Feb 13, 1999
View case
Sex ✓Male
Age 100%Est. 35–50 vs 32 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 18 years after last seen
Height 100%6'2" vs 5'10"–6'1"
Weight 100%200 lb vs 170–190 lb
Hair 100%Brown vs Brown
81%Moderate
John Doe — Tempe, Arizona - unidentified case UP2042
John Doe — Tempe, Arizona
UP2042 • Found Mar 11, 2003
View case
Sex ✓Male
Age 100%Est. 50–60 vs 32 when missing
Race 100%White
Location 100%9 mi away, same county
TimingFound 22 years after last seen
Height 100%5'9" vs 5'10"–6'1"
Weight 65%122 lb vs 170–190 lb
Hair 70%Gray vs Brown
Eyes 100%Blue vs Blue
80%Moderate
John Doe — Laveen, Arizona - unidentified case UP2028
John Doe — Laveen, Arizona
UP2028 • Found Nov 23, 2003
View case
Sex ✓Male
Age 100%Est. 20–35 vs 32 when missing
Race 100%White
Location 100%9 mi away, same county
TimingFound 22 years after last seen
Height 100%6'0" vs 5'10"–6'1"
Weight 100%196 lb vs 170–190 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
80%Moderate
John Doe — Phoenix, Arizona - unidentified case UP1919
John Doe — Phoenix, Arizona
UP1919 • Found Jun 23, 1988
View case
Sex ✓Male
Age 85%Est. 30–50 vs 32 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 7 years after last seen
Height 100%5'11" vs 5'10"–6'1"
Weight 100%191 lb vs 170–190 lb
Hair 40%Gray vs Brown
79%Possible
John Doe — Phoenix, Arizona - unidentified case UP1971
John Doe — Phoenix, Arizona
UP1971 • Found Apr 7, 2001
View case
Sex ✓Male
Age 100%Est. 30–40 vs 32 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 20 years after last seen
Height 84%5'8" vs 5'10"–6'1"
Weight 100%160 lb vs 170–190 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
79%Possible
John Doe — Arizona - unidentified case UP1900
John Doe — Arizona
UP1900 • Found Dec 19, 1982
View case
Sex ✓Male
Age 85%Est. 30–55 vs 32 when missing
Race 100%White
Location 96%24 mi away, same county
TimingFound 17 months after last seen
Height 100%5'10" vs 5'10"–6'1"
Weight 88%141 lb vs 170–190 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — Rio Verde, Arizona - unidentified case UP13861
John Doe — Rio Verde, Arizona
UP13861 • Found Apr 28, 2015
View case
Sex ✓Male
Age 100%Est. 50–65 vs 32 when missing
Race 100%White
Location 95%29 mi away, same county
TimingFound 34 years after last seen
Height 100%5'11" vs 5'10"–6'1"
Hair 100%Brown vs Brown
78%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 32 when missing
Race 100%White
Location 100%9 mi away, same county
TimingFound 28 years after last seen
Height 84%5'8" vs 5'10"–6'1"
Weight 89%142 lb vs 170–190 lb
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 32 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 26 years after last seen
Height 100%5'9" vs 5'10"–6'1"
Weight 100%155 lb vs 170–190 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue

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.