SIOUX FALLS, SD — Law enforcement officers from Yankton, Vermillion and other agencies gathered this week to honor Minnehaha County Deputy Katherine Frank, who was killed in the line of duty at age 26. The funeral drew a large crowd inside the Denny Sanford Premier Center, followed by a long procession of law enforcement vehicles through Sioux Falls.
Frank had served with the Minnehaha County Sheriff’s Office for two years. Officers who did not know her personally said the loss still felt immediate, both because of the circumstances of her death and because of the shared risk that comes with police work. For many in attendance, the service became a public show of grief, respect and solidarity.
How the fatal encounter unfolded in western Sioux Falls
According to court documents, Frank and two other deputies went to a home in western Sioux Falls on Oct. 9 to serve a mental illness hold on 39-year-old Brandon John Oetken. The deputies spoke with him in the entryway, and he then went back into the house before returning with a handgun.
Authorities say Oetken allegedly shot Frank during that encounter. She died on Oct. 12 from her injuries. Sioux Falls television station KELO reported Friday that Oetken has since been indicted on first- and second-degree murder charges in Frank’s death, along with two counts of attempted first-degree murder of a law enforcement officer and seven counts of aggravated assault against a law enforcement officer.
A funeral that drew officers from many agencies and states
The funeral service brought together hundreds of officers, deputies and support personnel from across South Dakota and beyond. Yankton County Sheriff Preston Crissey said the sight of so many agencies standing together made a deep impression, especially as bagpipes played “Amazing Grace” and the crowd reflected on Frank’s death.
Crissey said the event underscored how closely tied the law enforcement community is, even among people who have never met before. He said the procession afterward was equally moving, with vehicles stretching across a long route from the Premier Center to the funeral home. He described the turnout as a reminder that officers stand by one another in moments of loss.
Local departments show support through attendance and mourning bands
Members of the Yankton County and Clay County sheriff’s departments, the Yankton and Vermillion police departments and the University of South Dakota Police Department attended the funeral. Several also took part in the vehicle procession that followed, joining law enforcement from many other agencies in paying their respects.
Yankton Police Chief Jason Foote said his department wore mourning bands on their badges until Frank was laid to rest. He said the death of a young deputy just starting her career hit especially hard because she was doing the work officers and deputies are trained to do every day: helping people and responding to danger.
Officials describe the impact on close-knit departments
Clay County Sheriff Andy Howe said the large turnout was remarkable, though not surprising, given the bond within law enforcement. He said funerals like Frank’s can also become reunions for officers who know one another from training, past assignments or shared duties, even if they have not seen each other in some time.
Howe also said the loss can hit especially hard inside a small agency, where officers become like siblings through close daily work. He stressed that deputies are not easily replaced, because they are selected through an extensive process and develop personal connections with their colleagues and communities. That closeness, he said, makes a death like Frank’s especially painful for the Minnehaha County Sheriff’s Office and others who feel connected to it.
Voices from campus police, city departments and the public
People outside traditional county agencies also felt the loss. Todd Brandt, Mount Marty University’s director of campus security and a retired sworn officer, said he felt for the Minnehaha County Sheriff’s Office and incoming Sheriff Josh Phillips. He said the violent death would shape the agency’s memories of a transition period that should have been focused on the future.
Vermillion Police Chief Crystal Brady called the death “incredibly sad,” while USD Police Chief Bryant Jackson said it was heartbreaking for the broader profession. Jackson said public support from community members, agencies and people from across the state and nation offered a powerful reminder that service and courage do not go unnoticed.
A reminder of the dangers officers face on ordinary calls
Local chiefs said Frank’s death also reflects the unpredictability of everyday police work. Foote said officers respond to traffic stops, service calls and many other situations where danger can appear without warning. What begins as a routine call can turn tragic in seconds, and officers begin each shift with the goal of making it home safely.
Crissey and Jackson both said the killing is a sobering reminder that danger exists whether officers are on a university campus, in a neighborhood or on a highway. They said Frank should be remembered not only for how she died, but for her dedication, her service and the impact she left on family, friends, colleagues and the community.