HARTFORD, Conn. (AP) - An argument between neighbors over a dog led to a shooting that killed two people in Hartford, police said Monday. A third person was shot and critically injured. Hartford Mayor Luke Bronin said the two people who were killed were a couple and they leave behind a 6-month-old child. The shooting happened around 9 p.m. Sunday. The slain victims were identified as Christina Dang, 27, and Chase Garrett, 39. The injured woman who was hospitalized has not been identified. No arrests have been made. Police say they have identified a person of interest in the shooting.