A Sheriff’s Department K9 was used to apprehend a domestic violence suspect in Shasta Lake City Friday afternoon. The victim told deputies that her boyfriend, Afredo Carrillo, had assaulted her and she had visible injuries. Carrillo was apparently known from prior contacts to be confrontational. When deputies entered his home he was standing near a bathroom doorway. He cursed at the deputies and challenged them to fight. As he tried to enter the bathroom, Kilo the K9 was unleashed. Deputies say Carrillo violently resisted them and the dog before being taken into custody. Carrillo was taken to a hospital before being booked into jail.