Ada Resident Pleads Guilty To Federal Assault Charges

MUSKOGEE, OKLAHOMA - The United States Attorney's Office for the Eastern District of Oklahoma announced that Isaiah Marshall Harjo, age 28, of Ada, Oklahoma, entered a guilty plea to one count of Assault Resulting in Serious Bodily Injury in Indian Country, punishable by up to ten years in prison and a $250,000 fine, and one count of Assault with a Dangerous Weapon with Intent to Do Bodily Harm in Indian Country, punishable by up to ten years in prison and a $250,000 fine.

The Indictment alleged that on September 25, 2025, Harjo assaulted the victim, resulting in serious bodily injury. The Indictment further alleged that on that same day, Harjo assaulted a second victim with a dangerous weapon, intending to do bodily harm.

The crimes occurred in Pontotoc County, within the boundaries of the Chickasaw Nation Reservation, in the Eastern District of Oklahoma.

The charges arose from an investigation by the Bureau of Alcohol, Tobacco, Firearms and Explosives and the Ada Police Department.

The Honorable Gerald L. Jackson, Magistrate Judge in the United States District Court for the Eastern District of Oklahoma, accepted the plea and ordered the completion of a presentence investigation report.

A U.S. District Court Judge will determine the sentence to be imposed after considering the U.S. Sentencing Guidelines and other statutory factors.

Harjo will remain in the custody of the United States Marshals Service pending sentencing.

Assistant U.S. Attorney Lewis M. Reagan represented the United States.