The Riverside County Sheriff's Coroner’s Bureau has identified the remains of a woman found in a shallow grave in Riverside County, California, over four decades ago as Thelma Gaston, an 80-year-old real estate investor who disappeared in 1981. Advances in investigative genetic genealogy and dental records confirmed her identity. The case began on November 28, 1981, when skeletal remains were discovered near Sugar Loaf Mountain. Despite extensive investigative efforts, the victim remained unidentified for decades.
Gaston, whose estate was valued at approximately $20 million, disappeared on June 28, 1981, after leaving a note indicating she was searching for a missing cat. Prosecutors later accused Lawrence Remsen of killing her to gain control of her estate. Remsen, described as Gaston’s companion, was convicted of murder and sentenced to life in prison.
The Riverside County Sheriff's Coroner's Bureau revisited the case in November 2024, utilizing funding from the Missing and Unidentified Human Remains Grant to apply modern forensic technology. DNA samples were sent to Othram, a forensic laboratory, which developed a comprehensive DNA profile, leading to Gaston's identification in May 2026. Remsen, now 83, is currently serving his sentence and has been denied parole. This case highlights the effectiveness of advancements in forensic technology in solving long-standing mysteries.