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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 (MP51376) and 9 other sources
Marie B. Morgan, a 30-year-old woman, was last seen in Las Vegas, Nevada. The circumstances surrounding her disappearance are complex and troubling, pointing to a history of domestic abuse. An employee of the Women's Crisis Center, a shelter from which Marie had sought help to escape her husband, David Dale Morgan, was the one to report her missing. This action was taken after Marie had confided in the center about the abuse she was enduring. The situation is further complicated by an affair Marie had in 1979 with a man named Gabriel Vincent. Vincent had attempted to blackmail David Morgan with explicit photographs of Marie, which reportedly enraged her husband. Vincent himself vanished in November 1979, just seven months before Marie was last seen. Following his wife's disappearance, David Morgan claimed that she had run off with Vincent.

The investigation into Marie's disappearance took a significant turn in 1985 when David Morgan's sister, Deloris Morgan, came forward with a harrowing account. She informed investigators that her brother had confessed to murdering both Marie and Gabriel Vincent. According to Deloris, David had forced her at gunpoint to help him move Marie's remains into the Nevada desert in 1980. She described how they initially buried Marie's body along U.S. Route 95, past Indian Springs. Deloris also stated that several months later, David compelled her to assist in moving the body to a new, deeper grave, which he then covered with cement. Despite her efforts, Deloris was unable to pinpoint the exact location of the grave for investigators. Tragically, Deloris passed away from natural causes in 1987, leaving her shocking testimony as a important, yet unresolved, piece of the puzzle.

David Morgan has been considered the prime suspect not only in the disappearances of his wife and her lover but also in the later disappearances of a former business associate, Donald Cowan, in 1982, and his girlfriend, Diana Leone, in 2000. In 2007, he was arrested and charged with the murder of Gabriel Vincent after a witness came forward claiming to have seen the crime. However, the case against him was ultimately dropped in 2012 because the witness had died, and prosecutors felt they could not proceed without this key testimony. To this day, the cases of Marie Morgan, Gabriel Vincent, Donald Cowan, and Diana Leone remain unsolved, with no charges filed in connection with their disappearances. The lack of resolution has left their families with unanswered questions and a story without an ending.

Last Seen: May 10, 1980

Possible Unidentified Matches (5)

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
Jane Doe — Nevada - unidentified case UP9027
Jane Doe — Nevada
UP9027 • Found Sep 27, 1986
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Sex ✓Female
Age 100%Est. 20–35 vs 30 when missing
Race 100%White
Location 100%7 mi away, same county
TimingFound 6 years after last seen
Height 100%5'7" vs 5'6"
Weight 75%92 lb vs 120–130 lb
Hair 100%Brown vs Brown
78%Possible
Jane Doe — Nipton, California
UP2606 • Found Feb 27, 1985
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Sex ✓Female
Age 100%Est. 22–32 vs 30 when missing
Race 100%White
Location 89%49 mi away
TimingFound 5 years after last seen
Height 52%5'2" vs 5'6"
Weight 100%115 lb vs 120–130 lb
Hair 100%Brown vs Brown
77%Possible
Jane Doe — Kingman, Arizona
UP82822 • Found Nov 24, 1989
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Sex ✓Female
Age 100%Est. 25–30 vs 30 when missing
Race 100%White
Location 78%91 mi away
TimingFound 10 years after last seen
Height 100%5'1"–5'5" vs 5'6"
Weight 100%115–120 lb vs 120–130 lb
Hair 50%Blond vs Brown
75%Possible
Jane Doe — Baker, California
UP2590 • Found Dec 2, 1981
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Sex ✓Female
Age 60%Est. 20–55 vs 30 when missing
Race 100%White
Location 80%81 mi away
TimingFound 19 months after last seen
Height 100%5'7" vs 5'6"
Weight 100%130 lb vs 120–130 lb
Hair 100%Brown vs Brown
75%Possible
Jane Doe — Los Angeles, California - unidentified case UP4332
Jane Doe — Los Angeles, California
UP4332 • Found Aug 21, 1981
View case
Sex ✓Female
Age 85%Est. 30–50 vs 30 when missing
Race 100%White
Location 52%229 mi away
TimingFound 15 months after last seen
Height 100%5'1"–5'6" vs 5'6"
Weight 94%104 lb vs 120–130 lb
Hair 100%Brown vs Brown
Eyes 100%Blue 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.