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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 (MP51934) and 11 other sources
In the quiet city of Ann Arbor, Michigan, the life of a devoted mother of three young girls took an inexplicable turn. On the evening of October 1, 1973, 33-year-old Sandra 'Sandy' Horwath was at her apartment on Braeburn Circle with her children. After a shopping trip to the Sears at Briarwood Mall, they returned home around 8:30 p.m. Sandra took a phone call from a male friend at about 9:30 p.m. and then lovingly tucked her three daughters into bed at 10:00 p.m. The next morning, between 6:00 and 6:30 a.m., the children awoke to an empty home. Their mother was gone, and she failed to show up for her job at the University of Michigan hospital. The scene outside the residence was unsettling; the flowerbeds had been trampled, suggesting a possible struggle. While Sandra's vehicle and her watch were left behind, her purse and checkbook were missing and have never been found.

The initial investigation into Sandra's disappearance yielded few answers. Her ex-husband, who lived in Rochester, Michigan, had an alibi for the night she vanished and was cooperative with the police; he is not considered a suspect. He took their children to live with him following their mother's disappearance. For nearly three years, the case grew cold with no significant leads. Then, in 1976, a call from authorities in Texas brought a disturbing new development. Detectives in Houston had arrested a man named Gary Addison Taylor for sexual assault. Taylor's wife informed police that he had confessed to killing and burying three women and a man near a house he had rented in Onsted, Michigan. This information led investigators to believe that Sandra might be one of his victims, especially after it was discovered that she and Taylor were acquaintances and had possibly dated.

Gary Taylor had a long and violent history, with attacks on women dating back to his teenage years in the 1940s and 1950s. He had spent years in psychiatric hospitals for his behavior and was known to have a 'compulsion to hurt women.' Around the time of Sandra's disappearance, Taylor had stopped attending his outpatient appointments and left Michigan. After his arrest in Texas, he confessed to murders in Michigan, Texas, and Washington. A search of his former property in Onsted uncovered the bodies of two missing women from Ohio, but Sandra's remains were not found. Despite being a person of interest in her case, Taylor has denied any involvement in her disappearance. Currently serving a life sentence in Washington for another murder, he has refused recent requests for interviews with detectives. The investigation into Sandra Horwath's disappearance remains open, a long-unsolved mystery that began with a mother vanishing from her home in the middle of the night. Authorities still believe she was taken against her will, and her case stands as a painful and unresolved chapter for her family and the community.

Last Seen: Oct 1, 1973

Possible Unidentified Matches (7)

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.

78%Possible
Jane Doe — Detroit, Michigan - unidentified case UP8283
Jane Doe — Detroit, Michigan
UP8283 • Found Sep 21, 2000
View case
Sex ✓Female
Age 100%Est. 35–45 vs 33 when missing
Race 100%White
Location 93%36 mi away, same state
TimingFound 27 years after last seen
Height 100%5'2"–5'5" vs 5'6"
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
78%Possible
Jane Doe — Detroit, Michigan
UP150506 • Found Sep 17, 2025
View case
Sex ✓Female
Age 100%Est. 38–52 vs 33 when missing
Race 100%White
Location 93%36 mi away, same state
TimingFound 52 years after last seen
Height 100%5'5" vs 5'6"
Weight 100%147 lb vs 135 lb
Hair 70%Gray vs Brown
77%Possible
Jane Doe — Newport, Michigan - unidentified case UP8501
Jane Doe — Newport, Michigan
UP8501 • Found Feb 23, 1992
View case
Sex ✓Female
Age 85%Est. 32–52 vs 33 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 18 years after last seen
Height 84%5'8" vs 5'6"
Weight 100%140 lb vs 135 lb
Hair 100%Brown vs Brown
77%Possible
Jane Doe — Detroit, Michigan - unidentified case UP12001
Jane Doe — Detroit, Michigan
UP12001 • Found Nov 29, 1989
View case
Sex ✓Female
Age 100%Est. 25–35 vs 33 when missing
Race 100%White
Location 93%36 mi away, same state
TimingFound 16 years after last seen
Height 100%5'7" vs 5'6"
Hair 50%Blond vs Brown
75%Possible
Jane Doe — Detroit, Michigan - unidentified case UP85813
Jane Doe — Detroit, Michigan
UP85813 • Found Jan 28, 2021
View case
Sex ✓Female
Age 85%Est. 60–80 vs 33 when missing
Race 100%White
Location 93%36 mi away, same state
TimingFound 47 years after last seen
Height 100%5'6" vs 5'6"
Weight 100%141 lb vs 135 lb
Hair 70%Gray vs Brown
75%Possible
Jane Doe — Highland Park, Michigan
UP12327 • Found Jun 7, 2003
View case
Sex ✓Female
Age 85%Est. 50–70 vs 33 when missing
Race 100%White
Location 93%35 mi away, same state
TimingFound 30 years after last seen
Height 100%5'6" vs 5'6"
Weight 100%129 lb vs 135 lb
Hair 70%Gray vs Brown
Eyes 0%Blue vs Brown
75%Possible
Jane Doe — Grosse Isle, Michigan
UP12041 • Found Jun 24, 1977
View case
Sex ✓Female
Age 77%Est. 40–60 vs 33 when missing
Race 100%White
Location 95%31 mi away, same state
TimingFound 4 years after last seen
Height 68%5'3" vs 5'6"
Weight 57%95 lb vs 135 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.

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