Melissa Casias had been missing since June 2025 after she failed to arrive at work and did not return home.
TAOS, NM — Human remains found last week in the Carson National Forest have been identified as Melissa Casias, a Taos woman who disappeared nearly a year ago after failing to arrive at work, New Mexico State Police said.
The identification moves the case from a long missing person search into a death investigation still marked by unanswered questions. State police said a hiker found the remains May 28 in the McGaffey Ridge area of the forest. Investigators also found a handgun alongside the remains. The Office of the Medical Investigator helped confirm the identity, but officials said the cause and manner of death have not been determined.
Casias was reported missing June 26, 2025. Police said she failed to arrive at work and did not return home that evening after visiting her daughter at work. Family members later found several of her personal belongings at home, including her purse, identification and cellphones. Her cellphone had been factory reset. Those discoveries raised concern for her welfare and led to the missing person investigation. State police said Saturday that the remains will undergo further anthropological examination by the Office of the Medical Investigator. “The New Mexico State Police extend their deepest condolences to the Casias and Mondragon families during this difficult time,” the agency said.
The case drew attention in northern New Mexico because of the way Casias vanished and the area where she was last seen. Earlier missing person reports listed her as last seen June 26 in Taos. News reports at the time said she had been seen walking along State Road 518 from the Talpa area after visiting her daughter. Family members said she had left behind items people often carry when leaving for the day, including keys, a purse, phones and identification. Police have not said why Casias was in the McGaffey Ridge area, how long the remains may have been there or whether the handgun found nearby belonged to her.
Casias was 53 when she disappeared and later would have turned 54. Missing person records listed her full name as Melissa Shirley Casias and said she was missing from Taos. The case also drew wider public notice because Casias worked at Los Alamos National Laboratory, where earlier reports described her as an administrative assistant. Family members and search organizers pushed to keep attention on the case as weeks turned into months. Hundreds of volunteers, relatives and officials took part in searches after she was reported missing, and family efforts included public posts, reward information and interviews meant to keep her name in view.
Investigators have not announced any criminal charges, suspects or final findings. State police said the case remains active and ongoing. The next formal step is the medical and anthropological review of the remains, which could help determine how Casias died and whether investigators can establish a clearer timeline. The Office of the Medical Investigator is expected to continue its work before a final cause and manner of death are released. Police have not announced a date for when those findings may be completed.
The discovery came in the Carson National Forest, a large public forest that covers mountain and canyon terrain across northern New Mexico. McGaffey Ridge is in Taos County, near the area where earlier reports placed searches connected to Casias’ disappearance. The forest setting adds to the difficulty of reconstructing her final movements. Officials have released few details about the condition of the remains, the exact recovery site or what evidence was collected at the scene beyond the handgun. Those unknowns remain central to the investigation.
For Casias’ family, the identification ends months of not knowing where she was but does not answer what happened after she was last seen. In July 2025, her niece Jazmin McMillen said the family was trying to keep the case visible while search efforts continued. “No positive news right now,” McMillen said then. “We’re really just trying to kind of keep it top of mind for people in the area.” State police now say the search for Casias has become an active investigation into the circumstances of her death.
As of June 1, no cause or manner of death had been released, and state police had not announced arrests or a briefing. The next milestone is the Office of the Medical Investigator’s continued examination of the remains.
Author note: Last updated June 1, 2026.