Twist in the Mystery of the Secret Lab Worker: Who Did the Gun Belong To?

New Mexico police confirmed that the gun found near the remains of Melissa Cassias, a Los Alamos worker who disappeared in June 2025, was purchased by her husband Mark in 2020. The autopsy determined the cause of death was a gunshot to the head, but the manner of death remains undetermined. Police did not say whether the husband was questioned or if the weapon was linked to the shooting.

The mystery surrounding the death of Melissa Cassias, a Los Alamos National Laboratory worker who disappeared on June 26, 2025, and whose remains were found in the Carson National Forest on May 28 this year, has taken a new turn. New Mexico police confirmed that the gun found near her body was purchased by her husband, Mark, a hunting enthusiast, in 2020. Police did not say whether he was questioned, whether the weapon was the one fired, or whether he was named a suspect. The autopsy determined that Cassias was shot in the head, but the manner of death remains 'undetermined.' Her daughter, Sierra, asked the public not to turn the lack of a ruling into proof of murder, and revealed that her mother carried a backpack containing a holster for a gun. The family hired attorney David Adams, who claimed additional findings were discovered at the scene, including bones and hair. An anonymous source claimed that the angle of the shooting makes a suicide scenario difficult, but this is not an official conclusion. Cassias's two phones were found in her home with their data erased.