Thelma Gaston, an 80-year-old multimillionaire real estate investor who disappeared in 1981, has been identified as the victim whose remains were discovered in a shallow grave in Riverside County, California, more than four decades ago. The breakthrough in identification came through investigative genetic genealogy and dental records, according to the Riverside County Sheriff’s Coroner’s Bureau.
The case began on November 28, 1981, when individuals searching for firewood near Sugar Loaf Mountain discovered skeletal remains. Investigators recovered the remains the following day, but extensive decomposition prevented identification at the time. The victim remained an unidentified homicide victim for decades.
Gaston disappeared on June 28, 1981. A note at her home stated she had gone to look for a missing cat, but she never returned. At the time of her disappearance, her estate was estimated to be worth approximately $20 million.
Lawrence Remsen, then 39 and described as Gaston's "sometime companion," was later accused by prosecutors of killing Gaston to gain control of her estate. Authorities alleged that business associates received forged letters naming Remsen as the controller of Gaston's fortune. The Los Angeles Police Department identified Remsen as the suspect, and the Los Angeles County District Attorney's Office successfully prosecuted the case. Remsen was convicted of murder and sentenced to life in prison.
Cold Case Investigation Revived
While the homicide case was resolved, the whereabouts of Gaston's body remained unknown until the Riverside County Sheriff's Coroner's Bureau received funding through the Missing and Unidentified Human Remains Grant. This funding allowed investigators to revisit cold cases using modern forensic technology.
In November 2024, investigators exhumed the remains for additional forensic testing. DNA samples were sent to Othram, a forensic laboratory in The Woodlands, Texas. Scientists there developed a comprehensive DNA profile using their Forensic-Grade Genome Sequencing technology. This profile, combined with dental records, allowed for the positive identification of Gaston in May 2026.
The identification was a collaborative effort involving the Riverside Sheriff's Coroner's Bureau, the Riverside Cold Case Homicide Team, and Othram. "This identification ensures that Ms. Gaston has her name—and her story—returned to her," the Riverside County Sheriff's Coroner's Bureau stated.
California prison records indicate Remsen, now 83, is serving a life sentence at the California Institution for Men in Chino. He was denied parole in July 2025, with his next hearing scheduled for July 2028.
Othram reported that this case marks the 85th publicly announced California case in which its forensic DNA technology has helped identify an unknown individual. The case highlights how advancements in investigative genetic genealogy continue to solve long-standing mysteries and provide names for unidentified victims.