Sioux Falls Man Sentenced to Federal Prison for Assault
United States Attorney Alison J. Ramsdell announced that a Sioux Falls, South Dakota, man convicted of Assault with a Dangerous Weapon was sentenced on June 13, 2022, by U.S. District Court Judge Charles B. Kornmann.
Lyle Walter Iron Horn, age 41, was sentenced to five years in federal prison, followed by three years of supervised release.
Iron Horn was indicted by a federal grand jury on September 14, 2021. He pleaded guilty on March 15, 2022.
The conviction stemmed from an incident that occurred on February 20, 2021, in McLaughlin, South Dakota, in which Iron Horn assaulted an individual with shod feet.
This case was investigated by the Federal Bureau of Investigation and the Bureau of Indian Affairs - Office of Justice Services, Standing Rock Agency. Assistant U.S. Attorney Cameron J. Cook prosecuted the case.
Iron Horn was immediately turned over to the custody of the U.S. Marshals Service.