Missing Lab Worker's Remains Found in New Mexico Forest

Remains Identified Nearly a Year After Disappearance

Human remains discovered in a New Mexico national forest have been identified as Melissa Casias, a Los Alamos National Laboratory employee who vanished nearly a year ago, according to CNN and NBC News. The remains were found May 28, 2026, in the McGaffey Ridge area of Carson National Forest, roughly 15 miles from her home in Taos. State police confirmed the identification but said the cause and manner of her death have not yet been determined.

How She Disappeared

Casias, 54, was last seen walking along a highway near Talpa, New Mexico, in late June 2025, state police said. She was reported missing on June 26, 2025, after she failed to show up for work and never returned home following a visit to her daughter’s workplace. According to investigators, she left her belongings - including her purse, identification, and cellphones - at her home in Taos, nearly eight miles from where she was last seen on foot.

What Investigators Found

A handgun was recovered alongside her remains in the forest, police said. The medical examiner’s office will continue conducting tests to determine how she died. Authorities have not described the discovery as a homicide, and no charges have been announced. Police said the investigation remains open as they work to establish a timeline and explain how she traveled from the highway where she was last seen to the remote ridge where she was found.

A Broader Federal Question

Casias is among at least 10 people tied to sensitive U.S. nuclear and aerospace research who have died or disappeared in recent years, according to CNN. The cluster has drawn federal attention, and reporting indicates a White House-level probe has examined the cases. Authorities, however, have not established any link between Casias and the other individuals, and there is no confirmed evidence connecting her disappearance to her work at the laboratory.

Where the Case Stands

For now, the central questions remain unanswered: how Casias came to leave her home and belongings behind, how she reached the forest, and what caused her death. State police said the recovery of her remains allows the forensic phase of the investigation to begin in earnest. CBS News and Fox News reported that the discovery was made by a hiker, ending a search that stretched nearly eleven months. Officials said updates will follow as the medical examiner completes testing.

References: CNN - Remains of Melissa Casias, a Los Alamos National Laboratory employee missing for nearly a year, found in New Mexico forest | NBC News - Remains found in New Mexico national forest ID’d as those of Melissa Casias, who vanished last year | CBS News - Lab worker who vanished last year found dead in New Mexico national forest | Fox News - Family of Los Alamos lab worker found dead near handgun rejects suicide theory, suspects foul play