Manderson Man Found Not Guilty of Involuntary Manslaughter

RAPID CITY - United States Attorney Alison J. Ramsdell announced that a man from Manderson, South Dakota, was acquitted of Involuntary Manslaughter following a federal jury trial in Rapid City, South Dakota, on August 28, 2025.

Matocika Poor Bear, age 20, was indicted by a federal grand jury in January 2025. The indictment charged that on November 16, 2024, the defendant assaulted a man after an unknown dispute at a residence in Manderson, SD. The male sustained an injury and later passed away.

The investigation was conducted by the Oglala Sioux Tribe Department of Public Safety and the FBI. The U.S. Attorney's Office prosecuted the case.