The mystery surrounding the disappearances and deaths of multiple prominent scientists in the Southwest just got deeper.
Melissa Casias, who worked at Los Alamos National Laboratory, went missing in June 2025 after leaving her home without taking her phone, keys, or identification — a pattern noted in many of the other disappearances.
Almost a year after she vanished, seemingly without a trace, her skeletal remains were discovered.
Now, the results of Melissa’s autopsy have been released — and, they’re raising more questions than answers.
Autopsy reveals chilling new details in mysterious death of missing scientist found skeletonized in the woods https://t.co/NPsCxGijLF
— Daily Mail (@DailyMail) August 15, 2026
The autopsy notes that a bullet wound was found in Melissa’s skull.
But, despite this, the medical examiner has ruled her manner of death as “undetermined.”
A law enforcement source who spoke to the Daily Mail explained that the placement of the bullet wound is inconsistent with suicide.
He believes she was murdered.
More from the Daily Mail:
Authorities have revealed that Melissa Casias, whose body was discovered on May 28, was shot in the head at or around the time of her death, but it remains unclear if this was murder or a suicide. Her body was found well after her death.
Casias, an administrative assistant at the Los Alamos National Laboratory, vanished without a trace on June 26, 2025 after strangely walking out of her home without any identification, keys or way of contacting her.
Her skeletal remains were discovered 11 months later in Carson National Forest, propped up against a tree with a handgun near the body.
The official autopsy noted that Casias had been shot through the base of the skull, with the bullet exiting through the left side of her head. However, the Office of the Medical Investigator could not say if this wound was what killed the 53-year-old.
Due to the amount of decomposition of Casias’s remains when she was found, the medical examiner could only say that the gunshot occurred ‘perimortem,’ meaning it took place around the time she died but may not have been the actual cause.
ADVERTISEMENTThe medical examiner’s report added that the woman’s left hand and left leg were both found about 20 feet away from the body and showed signs of being attacked by wildlife who likely scavenged through the remains after death.
While the medical examiner could not tell if Casias’s death was a suicide or involved foul play, an anonymous law enforcement source told the Daily Mail the new details in the case point to murder.
The newly released autopsy noted that the bullet was fired into the right side of Casias’s cranial base, hitting the bottom of the skull near the large hole where the spinal cord connects to the brain.
It also damaged the topmost neck bone, known as the C1 vertebra, before exiting through the left side of the head, through the flat, thin part of the temple.
‘There’s no way this was suicide, not from that angle,’ the law enforcement source claimed, noting the reported position of the bullet when it entered Casias’s skull.
The source believed that, if Casias was really holding the handgun at that angle, the gun would have recoiled, causing the bullet to change direction instead of passing straight through her skull.
‘The kickback would have made the gun go straight up. That’s ridiculous. She was murdered,’ the source alleged.
Officially, the medical examiner has labeled Casias’s cause of death as ‘undetermined,’ adding that the autopsy could not even determine how close the gun was to the nuclear lab worker’s head when it was fired.
New York State Police are still investigating the mysterious death of Melissa Casias. But, at this time, it does not appear that they have any new leads.
Surveillance cameras captured the last time Melissa was seen in public, walking along a highway roughly three miles from her home.
Even more bizarre is the fact that Melissa’s phone was found at her home, completely wiped of data, after she disappeared.
Taos News provided additional background:
Casias was reported missing after she failed to clock in for work at Los Alamos National Laboratory on June 26, 2025. Family members said she had driven her husband, Mark Casias, to work that morning, but returned home, claiming she had forgotten her security badge.
She dropped off lunch to her daughter, Sierra Casias, who worked at the John Dunn Shops in downtown Taos. Her daughter later found her mother’s keys, a purse, wallet and two cellphones inside their Ranchos de Taos home that afternoon. Both phones were fully wiped of data.
Melissa Casias was last seen on residential security camera footage walking east with a backpack along N.M. 518 in Talpa, a few miles from her home in Ranchos de Taos. State police located a backpack with other items near where Melissa Casias’ body was found, according to Mark Casias’ daughter, Krista Misbach.
Misbach wrote in a Facebook post Friday, “We were also told that a bottle of alcohol was found in the vicinity, along with pieces of paper that could potentially be notes. We have been informed that these items are currently being examined and tested for forensic evidence.”
Melissa Casias’ maternal family, the Mondragons, maintain her death involved foul play. They suspect the area where her body was found was arranged by an unknown party or parties to make it appear that she took her own life. The family has hired an Albuquerque law firm, Parnall and Adams Law, to aid them in their independent investigation.
“The family believes the possibility must be investigated that Melissa’s body was somewhere else for a period of time before being transported to the location where she was ultimately found,” the family said in a statement posted Friday (Aug. 7) on Facebook. “They also believe investigators must examine whether the firearm and the circumstances surrounding the gunshot were part of an effort to make Melissa’s death appear to be a suicide.
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The suspicious circumstances surrounding Melissa Casias’ death mirror the deaths and/or disappearances of ten other scientists linked to nuclear and space research over the past two years.
This chart explores the links between these missing and dead scientists:

Numerous theories have been floated about the connection between these mysterious disappearances and deaths.
Back in April, a federal investigation was launched into the matter.
But, so far, this dark pattern has remained largely unexplained.
The families of these victims and the American people deserve answers.
What are your thoughts?
This is a Guest Post from our friends over at WLTReport. View the original article here.







