Article By Frank Bergman
Explosive new details have emerged in the mysterious death of a New Mexico nuclear scientist, with newly released autopsy findings fueling fresh suspicions that she may have been murdered.
Melissa Casias, who worked at the highly sensitive Los Alamos National Laboratory (LANL), disappeared without a trace in June 2025 before her skeletal remains were discovered nearly a year later in a remote national forest.
Authorities have now confirmed that Casias suffered a gunshot wound to the head around the time of her death.
Yet despite the shocking discovery, investigators still have not determined whether the death was a homicide or suicide.
Nuclear Scientist Vanished Without a Trace
Casias, 53, disappeared on June 26, 2025, after unexpectedly walking away from her home without her identification, keys, or any way to contact anyone.
She never arrived for work at the secretive Los Alamos National Laboratory after reportedly forgetting the security badge required to enter the facility.
Earlier that day, she stopped to deliver a sandwich to her daughter’s workplace before telling her she would work from home.
She was never seen alive again.
Security cameras later captured Casias walking alone along State Road 518, roughly three miles from her home.
When family members returned to the house, they reportedly found a drop of blood inside the residence.
Investigators also discovered that both of Casias’s cellphones had been wiped clean and reset to their factory settings.
Autopsy Reveals Gunshot Wound
Casias’ remains were discovered on May 28 in Carson National Forest, propped against a tree with a handgun lying nearby.
The newly released autopsy reveals she suffered a gunshot wound entering through the base of her skull before exiting through the left side of her head.
Because her remains had decomposed extensively, the Office of the Medical Investigator classified the wound as occurring “perimortem,” meaning around the time of death.
Investigators said they could not determine whether the gunshot was the actual cause of death.
The official manner of death remains listed as “undetermined.”
The report also noted that Casias’ left hand and left leg were found roughly 20 feet from the body after wildlife scattered portions of the remains.
Law Enforcement Source Rejects Suicide Theory
While authorities have not officially ruled out suicide, an anonymous law enforcement source told the Daily Mail that the evidence instead points toward homicide.
“There’s no way this was suicide, not from that angle,” the source said.
The source argued that the bullet’s reported trajectory through the skull is inconsistent with a self-inflicted gunshot.
“The kickback would have made the gun go straight up,” the source said.
“That’s ridiculous. She was murdered.”
The medical examiner, however, said the condition of the remains prevented investigators from determining how close the firearm was to Casias’s head when it was discharged.
Family Says Investigation Raises Serious Questions
New Mexico State Police have confirmed that the investigation remains active but have released few additional details.
Casias’ family has long maintained that foul play should not be ruled out.
Attorney David Adams, who represents her parents and siblings, has repeatedly questioned how the investigation was handled.
Nearly a month after police declared the scene cleared, family members and volunteers reportedly returned to the area and discovered additional bones, bloody clothing, a tobacco pouch, orange peels, and unidentified strands of hair that investigators had not collected.
Adams warned that the discoveries could create major evidentiary problems if prosecutors eventually pursue criminal charges.
“There becomes a question of chain of custody,” Adams said.
Growing Mystery Surrounding Los Alamos
Casias’s disappearance has fueled broader speculation because of her employment at Los Alamos National Laboratory, one of America’s most secretive nuclear research facilities.
The case has drawn attention alongside several other disappearances involving individuals connected to national security, including former Los Alamos personnel and retired Air Force Gen. William Neil McCasland, who oversaw military programs linked to the laboratory.
More than ten nuclear scientists, military personnel, and individuals connected to sensitive government research have reportedly been linked to what has become known as the “missing scientist” mystery over the past year.
Those cases reportedly prompted the White House to direct the FBI to examine whether any connections exist between the disappearances.
Despite that directive, Adams says there has been no indication that the FBI is actively investigating Casias’s death.
With a gunshot wound now confirmed, phones mysteriously wiped clean, blood found inside her home, and critical evidence reportedly left behind at the scene, the mystery surrounding the death of the Los Alamos nuclear scientist appears far from resolved.
Be the first to comment