Investigation Underway Following Inmate Death

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Authorities in Grand Junction, Colorado are investigating the in-custody death of a 55-year-old female inmate at the Mesa County jail. The inmate, identified as Jean Treadwell of Parachute, Colorado, was found unresponsive in her cell early Tuesday morning. Despite life-saving efforts by deputies, medical staff, and emergency personnel, Treadwell was pronounced dead at the scene. The Mesa County Coroner's Office has completed an autopsy, which showed no injuries contributing to her death, and is awaiting further test results to determine the final cause and manner of death.

Why it matters

In-custody deaths are a serious concern, as they raise questions about the treatment and care of inmates within the criminal justice system. This incident will likely prompt an investigation into the circumstances surrounding Treadwell's death and any potential issues with the jail's procedures or staffing.

The details

According to officials, the incident occurred in the early hours of February 17, 2026, when Treadwell was discovered unresponsive in her cell at the Mesa County jail. Deputies, medical staff, and emergency personnel immediately began life-saving measures, but were unable to revive her. The Mesa County Coroner's Office has completed an autopsy, which showed no injuries that contributed to Treadwell's death. The office is now awaiting the results of special studies before determining the final cause and manner of death.

• The incident occurred in the early hours of February 17, 2026.
• Treadwell's autopsy was completed on February 19, 2026.

What’s next

The investigation into Treadwell's death remains ongoing, and the Mesa County Coroner's Office is awaiting the results of special studies to determine the final cause and manner of her death.