Marshall County Resident Sentenced For Involuntary Manslaughter In Indian Country

MUSKOGEE, OKLAHOMA – The United States Attorney’s Office for the Eastern District of Oklahoma announced that Ashley Nicole Castleberry-Miller, age 31, of Kingston, Oklahoma, was sentenced to 48 months in prison for one count of Involuntary Manslaughter in Indian Country, to be followed by three years of Supervised Release.

The charge arose from an investigation by the Oklahoma Highway Patrol, the Seminole County Sheriff’s Office, and the Seminole Police Department.

On April 3, 2025, Castleberry-Miller pleaded guilty to the charge.  According to investigators, on April 20, 2024, Castleberry-Miller unlawfully killed the victim when she failed to devote full time and attention to driving, drove left of the center line of the roadway while driving without due caution, and operated a motor vehicle under the influence of an intoxicating substance other than alcohol.  The crime occurred in Seminole County, within the boundaries of the Seminole Nation Reservation, in the Eastern District of Oklahoma.

The Honorable Ronald A. White, Chief U.S. District Judge in the United States District Court for the Eastern District of Oklahoma, presided over the hearing.  Castleberry-Miller will remain in the custody of the U.S. Marshals Service pending transportation to a designated United States Bureau of Prisons facility to serve a non-paroleable sentence of incarceration.

Assistant U.S. Attorney Kevin Gross represented the United States.