Missoula County Sheriff’s Office announced on November 5, 2026 that Matthew D. Dye, the suspect charged in the fatal shooting of a county deputy, died while in custody at the Missoula County Detention Facility.
Medical emergency and transport
According to Communications Coordinator Jeannette Smith, staff observed Dye experiencing a medical emergency on the evening of November 4. Detention medical personnel assessed him and arranged for transport to St. Patrick’s Hospital by ambulance. During the ambulance ride, Dye became unresponsive, prompting EMS crews to initiate life‑saving measures. He was pronounced dead at the hospital.
Investigation procedures
Following standard operating procedures for an in‑custody death, Sheriff Jeremiah Petersen requested that the City of Missoula Police Department conduct a full investigation. All video recordings and related documentation from the detention facility have been turned over to the police department, and the sheriff’s office is fully cooperating.
The Lake County Sheriff’s Office Deputy Coroner’s Office is handling the coroner duties for the case.
Official statements
“The care, safety, and well‑being of every individual entrusted to our custody is a responsibility we take very seriously, and we remain committed to these high standards,” Sheriff Petersen said.
Smith added, “We extend our condolences to the family and loved ones of Mr. Dye.” Additional information will be released as it becomes available in coordination with the Lake County Sheriff’s Office and the City of Missoula Police Department.
Context for the community
The death of Dye follows his alleged involvement in the killing of a Missoula County deputy earlier this month, an incident that sparked significant concern among local residents and law‑enforcement officials. While the investigation into that shooting continues, the sheriff’s office emphasized that the current inquiry into Dye’s death is separate and will be handled transparently.
County officials encourage anyone with information about the circumstances surrounding the medical emergency to contact the Missoula County Sheriff’s Office.
Original reporting: NewsTalk KGVO 1290 (Townsquare) — read the source article.
