SIOUX FALLS, S.D. (Dakota News Now) – An officer shot during Friday night’s shooting in southwest Sioux Falls has passed away, according to the Minnehaha County Sheriff’s Office.
Minnehaha County Sheriff’s Deputy Katherine Ann Frank died Monday, Oct. 12, three days after she was shot in the line of duty. She was 26 years old.
Katherine Frank worked at the South Dakota State Penitentiary from September 2022 until being hired by the Minnehaha County Sheriff’s Office in June 2024.
According to a GoFundMe set up by the Minnehaha County Deputies Association, Katherine leaves behind five siblings, her grandparents, her boyfriend, and parents. Her family describes her as ‘incredibly funny’ and ‘someone who gets along with just about everybody’.
“She was deeply loved, and her loss is felt by so many,” the GoFundMe reads.
A memorial has been established at the Law Enforcement Center on 320 W. 4th Street in Sioux Falls for those who wish to pay their respects.
Tributes have already begun to pour in for the fallen deputy, including a memorial outside of the Minnehaha County Sheriff’s Office.
Tributes for Katherine Frank(Dakota News Now)
“Deputy Frank served with dignity and heart. Her service made a meaningful difference, and her impact will remain with us always,” Sheriff Mike Milstead said in a statement to Dakota News Now.
Governor Larry Rhoden also released a statement on Facebook.
Representative Dusty Johnson also issued his condolences.
“I’m praying for the family, friends, and colleagues of Deputy Katherine Frank. Her passing is tragic. I’m grateful for her service and join in honoring her sacrifice.” Johnson said in a Facebook post.
Senate Majority Leader John Thune also commented on Deputy Frank’s passing: “The South Dakota law enforcement community suffered a great loss today. Kimberley and my thoughts and prayers are with Deputy Frank’s loved ones and colleagues during this extremely difficult time.”
Sioux Falls Mayor Christine Erickson shared her condolences on Facebook
“My heart is heavy as we mourn the loss of Minnehaha County Sheriff’s Deputy Katherine Frank.
Our law enforcement officers dedicate their lives to serving and protecting others, and their commitment and sacrifice should never be taken for granted.
On behalf of the City of Sioux Falls, I extend my deepest condolences to Katherine’s family, friends, fellow deputies, and the entire Minnehaha County Sheriff’s Office.”
Please join me in keeping her loved ones and our law enforcement family in your thoughts and prayers during this incredibly difficult time.
Rest in peace, Katherine. Thank you for your service.
A man involved in the shooting, 39-year-old Brandon Oetken, faces three counts of attempted first-degree murder of a law enforcement officer and three counts of aggravated assault on a law enforcement officer.
All donations sent to the GoFundMe will be collected and sent to Katherine Frank’s family.
Copyright 2026 Dakota News Now. All rights reserved.