Authorities say four people have been killed and two others injured in a shooting at a home Saturday night in Honolulu. Police say the shooter is among those killed. Honolulu Emergency Medical Services says it responded to a residence in Waianae Valley just after 11:15 p.m. where six people had been shot. Three of them — two women and a man — were pronounced dead at the scene. Three adults were taken to a hospital with multiple gunshot wounds. One of the injured has since died, police said. An investigation is continuing.