Two fisherman discovered his body in the Missouri River south of Cascade. Authorities believe that Malmstrom slipped and fell into the river and drowned, he was wearing waders but not a life jacket.
He had two dogs with him at the time, one has been found safely. The other, a chocolate lab named "Deuce" ran away when approached by emergency personnel. The sheriff's office asks that if anyone locates the dog to contact them immediately.