Missing California millionaire’s remains identified 45 years after her disappearance

The remains of Thelma Jeanette Gaston, an 80-year-old California real estate investor who vanished in 1981, have been officially identified nearly 45 years after her disappearance. The identification came through advanced forensic DNA analysis conducted by the Riverside County Sheriff’s Coroner’s Bureau, which worked alongside a private laboratory called Othram. The discovery marks the resolution of one of the region’s longest-running cold cases, providing closure to a mystery that spanned over four decades. The remains were initially uncovered in November 1981 near Sugar Loaf Mountain in Riverside County, California, during a search for firewood. Authorities retrieved the body the following day, but due to severe decomposition, they were unable to identify the victim. For over 40 years, the woman remained an unidentified homicide victim, her fate unknown despite ongoing investigations. The breakthrough occurred recently after the coroner’s bureau secured funding through the Missing and Unidentified Human Remains Grant, enabling them to apply modern forensic techniques to unsolved cases. In November 2024, investigators exhumed the remains for further testing. DNA samples were sent to Othram, a forensic laboratory in The Woodlands, Texas, where scientists used their Forensic-Grade Genome Sequencing technology to develop a comprehensive DNA profile. This allowed investigators to match the remains with Thelma Gaston through forensic genetic genealogy and cross-referenced dental records. The identification was confirmed in May 2026, marking a significant step in resolving the case. Thelma Gaston disappeared on June 28, 1981, leaving behind only a note on her door indicating she had gone out to find her missing cat. She was never seen again, and her absence led to a high-profile investigation. Prosecutors later focused on Lawrence Remsen, a 39-year-old carpet salesman who was described as Gaston’s “sometime companion.” Authorities alleged that Remsen killed Gaston to gain access to her estimated $20 million estate, which some reports suggest could have been closer to $100 million. Evidence against Remsen included forged letters purporting to be from Gaston, which named him as the beneficiary of her fortune. These documents were used to transfer funds to an account in the Cayman Islands and attempt to sell properties she owned. Additionally, a will was presented in court that allegedly left a substantial portion of her estate to her nephew, John Mittrick, and his daughters. However, this will lacked witnesses, and Mittrick claimed it had been stolen from his briefcase. Other documents were introduced, including a 1962 will that left the estate to Gaston’s sister, Ella Wilcox, and a 1979 will that included both Wilcox and Mittrick’s daughters, naming Mittrick as the executor. Both Wilcox and Mittrick are now deceased, and attempts to contact Mittrick’s daughter were unsuccessful. Lawrence Remsen was arrested in September 1981 while attempting to cross the Mexican border into Texas. At his trial in 1983, he testified that he found Gaston dead of natural causes and decided to take advantage of her death. He claimed he weighted her body and disposed of it at sea. However, the location where the remains were found, a shallow grave near Sugar Loaf Mountain, contradicted his testimony. Superior Court Judge Gordon Ringer dismissed Remsen’s claims, describing him as an “incompetent scoundrel.” Remsen was convicted of murder in a nonjury trial and sentenced to 15 years to life in prison for Gaston’s murder, plus an additional six years for forgery charges. He has been denied parole four times since 2016 and has also faced rejections in appeals seeking to challenge his continued incarceration. As of now, Remsen, now 83, remains incarcerated at the California Institution for Men and does not have an attorney. His daughter, mentioned in appeal documents, has not responded to requests for comment. The identification of Thelma Gaston’s remains brings a measure of finality to a case that had lingered unresolved for decades. The Riverside County Sheriff’s Coroner’s Bureau stated that the confirmation allows Ms. Gaston to have her name and story restored, offering a sense of justice to her family and the community.