Brianna Marie Mattix-Hatch, 26, was shot and killed inside a Sioux Falls apartment on the morning of September 14, 2022, after police responded to a reported family dispute near the 3600 block of South Willow Avenue. Officers attempting a partial entry were met with gunfire, pulled a young child to safety from the doorway, and then backed out while negotiators communicated with the man inside. A second child was later heard; SWAT members later entered the unit to rescue that child and both children were taken out without physical injuries.

Investigators identified 32-year-old Arthur Rudolph Miguel as the suspected shooter. During the standoff Miguel shot himself and was transported to a Sioux Falls hospital in critical condition; he died days later. Police described the incident as a domestic dispute and list the victim and suspect as intimate partners. The case is recorded as a murder followed by the suspect’s suicide. If anyone knew Brianna, her family, or witnessed activity near South Willow Avenue that morning, please share what you remember.