Kyle Man Sentenced to Five Years in Federal Prison for Assault on Pine Ridge Reservation

RAPID CITY - United States Attorney Ron Parsons announced today that U.S. District Judge Camela C. Theeler has sentenced a Kyle, South Dakota, man convicted of Assault Resulting in Serious Bodily Injury. The sentencing took place on March 23, 2026.

Oliver Brown Bull, 38, was sentenced to five years in federal prison, followed by three years of supervised release, and ordered to pay a $100 special assessment to the Federal Crime Victims Fund.

Brown Bull was indicted for two counts of Assault Resulting in Serious Bodily Injury and one count of Assault with a Dangerous Weapon by a federal grand jury in March 2025. He was found guilty of one count of Assault Resulting in Serious Bodily Injury following a federal jury trial in December 2025.

On January 31, 2025, in the Pine Ridge Reservation, Brown Bull assaulted another man by pushing him to the ground and punching him multiple times in the face. Brown Bull then kicked the victim in the face. As a result, the victim suffered several injuries, including a broken eye socket, a laceration around his eye, two broken bones in his nose, and severe bruising. At the time of trial, the victim was still suffering from the assault, including continued pain and disfigurement.

This matter was prosecuted by the U.S. Attorney's Office because the Major Crimes Act, a federal statute, mandates that 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 Criminal Investigations Division. Assistant U.S. Attorney Benjamin Schroeder prosecuted the case.

Brown Bull was immediately remanded to the custody of the U.S. Marshals Service.