Rapid City Man Sentenced to Over 6 Years in Federal Prison for Assaulting a Woman Causing Serious Bodily Injury

RAPID CITY - United States Attorney Ron Parsons announced today that U.S. District Judge Karen E. Schreier has sentenced a Rapid City, South Dakota, man convicted of Assault Resulting in Serious Bodily Injury and Assault by Strangulation and Suffocation. The sentencing took place on May 22, 2026.

Jeremy Old Horse, 40, was sentenced to six years and six months in federal prison, followed by three years of supervised release, and ordered to pay $200 in special assessments to the Federal Crime Victims Fund.

Old Horse was indicted for the charges by a federal grand jury in June 2025. He pleaded guilty on March 4, 2026.

On January 25, 2025, an Oglala Sioux Tribe Department of Public Safety officer responded to a residence and observed a female victim who had been recently assaulted. Old Horse repeatedly used his knee to assault the victim in the face, breaking multiple bones in her face. Old Horse also strangled the victim during the assault. The victim advised law enforcement that she had been tortured by Old Horse to find out what information she had provided to law enforcement about an assault that occurred one month before.

"This was a brutal assault," said U.S. Attorney Parsons. "We commend the victim's bravery."

This matter was prosecuted by the U.S. Attorney's Office because the Major Crimes Act, a federal statute, mandating certain violent crimes alleged to have occurred in Indian country be prosecuted in federal court as opposed to State court.

This case was investigated by the Oglala Sioux Tribe Department of Public Safety. Assistant U.S. Attorney Megan Poppen prosecuted the case.

Old Horse was immediately remanded to the custody of the U.S. Marshals Service.