Pinedale Woman Pleads Guilty to Involuntary Manslaughter

ALBUQUERQUE - A Pinedale woman pleaded guilty in federal court to involuntary manslaughter for killing her husband during a physical altercation.

According to court documents, on June 30, 2025, Mabelene Grey, 46, an enrolled member of the Navajo Nation, confronted her husband, John Doe, at their residence in Pinedale, New Mexico, regarding an affair. A physical altercation ensued, during which Grey produced a firearm and, during the struggle, fired it, killing John Doe.

Grey pleaded guilty to involuntary manslaughter. At sentencing, she faces up to eight years in prison followed by up to three years of supervised release.

First Assistant U.S. Attorney Ryan Ellison and Special Agent in Charge Justin A. Garris of the Federal Bureau of Investigation's Albuquerque Field Office made the announcement today.

The Gallup Resident Agency of the Federal Bureau of Investigation's Albuquerque Field Office investigated this case with assistance from the Navajo Nation Police Department and Navajo Nation Department of Criminal Investigations. Assistant U.S. Attorney Amy Mondragon is prosecuting the case.