A police spokesman in Wisconsin says one of the four people wounded Saturday in a domestic shooting in Madison pulled the trigger.
Sgt. Phil Moore said Sunday that investigators have a theory about what happened in the shooting that left a 42-year-old woman, a 38-year-old man, a 7-year-old boy and an 8-year-old girl injured. But he wouldn't release details until officers had the chance to interview one of the people shot.
Police have not identified the victims or their relationships, except to say they shared the apartment where the shooting occurred.
All four were taken to local hospitals after the shooting, but Moore says one was interviewed at the scene and police expect to be able to talk to all of them.