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Attorney General Marty Jackley

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Law Enforcement Searching for Subject in Quadruple Homicide in Sisseton

PIERRE, S.D – State and local Law Enforcement are searching for Colter Richard Arbach, 22, Sissteton, the subject in a quadruple homicide. The shooting incident occurred in a Sisseton residence early this morning. Four individuals are dead and one is critically injured. The names of the victims are not being released at this time.

Arbach is armed and dangerous and should not be approached. Anyone who has seen Arbach or knows of his whereabouts is asked to contact the Sisseton Police Department at 605-698-7667.