Katherine Ann Frank, a 26-year-old Minnehaha County Sheriff’s deputy, is being remembered for her dedication to public service, her warm personality and the relationships she built with family, friends and colleagues. Frank died on October 12, 2026, at Sanford USD Medical Center in Sioux Falls, three days after she was critically wounded in a shooting while on duty.
Her death has deeply affected the Sioux Falls community and the wider law enforcement family, prompting tributes from residents, public officials and fellow officers who recognized her commitment to serving others.
Early Life and Career
Born on March 22, 2000, Katherine Ann Frank was the daughter of Steven and Janette Frank of Vergas, Minnesota. Her father served as a pastor at St. Paul’s Loon Lake Church near Vergas, connecting the family to a local faith community that mourned her death.
Before joining the Minnehaha County Sheriff’s Office in June 2024, Frank worked at the South Dakota State Penitentiary, beginning in September 2022. She later completed law enforcement training and began serving residents of Minnehaha County as a deputy sheriff.
Her career reflected a commitment to public safety and helping others. Sheriff’s officials described her service as professional, humble and dedicated, while colleagues remembered the contribution she made to their agency.
The Shooting That Took Her Life
Frank was shot on October 9, 2026, while deputies were responding to a residence in southwest Sioux Falls to serve a mental health hold. Authorities reported that gunfire erupted after deputies had arrived at the home. Frank and a 39-year-old suspect were both wounded and taken for medical treatment.
Frank remained critically injured for three days before dying on October 12, surrounded by family and loved ones. The South Dakota Division of Criminal Investigation was involved in examining the circumstances of the shooting.
Brandon John Oetken, the suspect identified by authorities, faced serious criminal charges in connection with the incident. The case remains a matter for the justice system, and allegations against the accused should be distinguished from any final court findings.
Remembering the Woman Behind the Badge
Although Frank’s work placed her in a demanding profession, family members remembered her for more than her uniform and public service. They described her as incredibly funny and someone who got along with just about everybody.
Those close to her recalled a personality that helped her form connections with others. Friends, relatives and colleagues are left grieving not only a deputy who served her community but also a young woman whose everyday presence mattered deeply to the people who knew her.
Frank is survived by her parents, five siblings, grandparents, boyfriend and dog. Her family and friends now face the difficult task of navigating life without her, holding on to shared memories and the bonds they built together.
A Community Comes Together
Following news of Frank’s death, a memorial was established outside the Minnehaha County Law Enforcement Center in Sioux Falls. Residents left flowers and other tributes to honor her service and show support for her loved ones.
Law enforcement colleagues and public officials also expressed condolences. Sheriff Mike Milstead praised Frank’s dedication and the meaningful difference she made during her service. South Dakota Governor Larry Rhoden ordered flags to be flown at half-staff on October 18 and 19 in her honor.
One particularly moving aspect of Frank’s legacy was her decision to become an organ donor, allowing her final act to offer hope and help to others. <Cite refs={[“turn814621search15″,”turn814621news13”]}/>
Funeral and Memorial Services
Frank’s funeral service was scheduled for 1 p.m. on Monday, October 19, 2026, at the Denny Sanford PREMIER Center in Sioux Falls, with attendees encouraged to be seated by noon. A visitation was also scheduled for Tuesday, October 20, at Grace Lutheran Church in Dawson, Minnesota, followed by a private family interment.
The arrangements gave family, friends, fellow officers and members of the public an opportunity to pay their respects and recognize her service. <Cite refs={[“turn814621search0″,”turn814621search16”]}/>
Honoring Katherine Ann Frank’s Legacy
Katherine Ann Frank’s death at 26 has left a profound loss for her family, the Minnehaha County Sheriff’s Office and communities across South Dakota and Minnesota. Her years in public safety were only one part of her story; her humor, personal relationships and generosity also shaped the way she will be remembered.
As tributes continue, her legacy lives on in the people she served, the colleagues who worked alongside her and the loved ones who will carry her memory forward. Her decision to donate her organs adds another dimension to a life dedicated to helping others.
Heartfelt condolences go out to Frank’s parents, siblings, boyfriend, extended family, friends and fellow deputies. May they find comfort in their memories of Katherine and strength in the support of the communities standing with them.
