“TELL MOM I’LL CALL HER WHEN I GET THERE…” 💔😢 Those haunting words are now breaking hearts everywhere as tragic new details emerge in the disappearance of a US scientist whose family spent months desperately hoping she would come home. 🕯️ For weeks, loved ones clung to one emotional message connected to her final days, treating it as a symbol that she was still out there somewhere waiting to be found. But after the devastating discovery that changed the entire case, many say that heartbreaking family detail is now the hardest part of the story to process.

Missing US scientist’s body found ‘skeletonized’ with gunshot wound as grisly details emerge: report

The body of a missing nuclear lab worker who vanished last year was reportedly found “skeletonized” with a gunshot to her skull in a national forest in New Mexico.

Melissa Casias’ decaying body was found in a remote part of the Carson National Forest on Monday, according to local authorities. Casias, 54, was last seen on June 26, 2025.

Melissa Casias wearing a cap and t-shirt, standing outdoors with a hilly, dry landscape and clear sky behind her.
The body of missing nuclear lab worker Melissa Casias was found “skeletonized” with a gunshot injury to her skull.Find Melissa Mondragon Casias

Thomas McNally, a former homicide detective who was investigating Casias’ disappearance for her family, told The Daily Mail that the mom-of-one’s “skeletonized” corpse was propped up against a tree – with an abandoned gun laying nearby.

McNally said that Casias’ body didn’t show any signs of animal activity or disturbance, despite being left to rot in the forest.

The investigator firmly believes that foul play was involved in Casias’ death – and hinted that her devastated family will file a civil lawsuit against the New Mexico State Police for purportedly botching the case.

Casias worked as an administrative assistant at the Los Alamos National Laboratory, created during World War II for the groundbreaking Manhattan Project, and was closely tied to US nuclear weapons research ever since.

Carson National Forest in autumn with a green and gold landscape of trees and distant mountains under a cloudy sky.
Casia’ decaying body was found in a remote part of the Carson National Forest on Monday.J. Michael Jones – stock.adobe.com

On the day she disappeared, the married mother wiped all records from her phones before leaving them and her identification behind and walking out of her home in Ranchos de Taos, a remote community some 70 miles northeast of Santa Fe.

She dropped her husband, Mark, another Los Alamos employee, off at the facility before allegedly claiming she’d forgotten her badge and had to return home.

McNally told the outlet that Casias and her husband got into an argument over a vape pen during the commute to the lab.

CCTV footage showing Melissa Casias walking on a sidewalk on June 26, 2025.
Casias was last seen on June 26, 2025.GoFundMe

The couple’s daughter, Sierra, 19, told police that Casias did return to their home, dropped off a sandwich and told her that she planned to work from home.

“She looked totally normal. Sierra said everything was fine. She didn’t look weird,” McNally told the outlet.

Casias was last seen walking alone eastward on State Road 518, some three miles from their home, around 2:20 p.m. local time.