South Dakota Deputy Katherine Frank Dies After Being Shot During Confrontation

<p>A 26-year-old South Dakota sheriff's deputy has died after being shot during a confrontation at a Sioux Falls home that also left a suspect wounded.</p><p>Minnehaha County Deputy Katherine Frank was critically wounded on October 10, 2026, when gunfire erupted about 30 minutes after deputies arrived at the home, according to the Minnehaha County Sheriff's Office.</p><p>Frank and the suspect were treated at the home before being taken to hospitals. Frank died on October 13, surrounded by family and loved ones, after spending three days in critical condition.</p><p>The sheriff's office stated, "Deputy Frank's death is a significant loss to our agency and to the broader law enforcement community in and around Sioux Falls. She served the citizens of Minnehaha County with professionalism, humility, and dedication. Her absence will be felt deeply by all who have had the privilege of working alongside her."</p><p>The suspect, Brandon John Oetken, 39, of Sioux Falls, has been charged with three counts of attempted first-degree murder of a law enforcement officer and three counts of aggravated assault on a law enforcement officer.</p><p>Minnehaha County jail records also list a felony offense of disarming a law enforcement officer. Oetken remained in custody without bond as of October 13.</p><p>It was not immediately clear whether prosecutors planned to file additional charges following Frank's death.</p><p>The South Dakota Division of Criminal Investigation is handling the shooting investigation at the sheriff's office's request.</p><p>South Dakota Attorney General Marty Jackley paid tribute to Frank after her death, stating, "We mourn the loss of Minnehaha County Sheriff's Deputy Katherine Frank, who sacrificed everything in the line of duty to keep us safe. Let us never forget her courage and the service of all of our law enforcement officers. Deputy Frank and her family remain in our prayers."</p><p>Jackley previously indicated that investigators would review the use of force during the encounter, with a public report expected within 30 days.</p><p>The shooting was the fifth involving law enforcement officers in South Dakota in 2026, according to the attorney general's office.</p><p>Frank began working at the South Dakota State Penitentiary in September 2022 before joining the sheriff's office in June 2024.</p><p>In her final act of service, Frank became an organ donor, continuing to help others even after her death, as noted by the sheriff's office.</p><p>The sheriff’s office stated, "Deputy Frank served with dignity and heart. Her service made a meaningful difference, and her impact will remain with us always."</p>