NORTH BELLMORE - Police say a North Bellmore couple is dead of an apparent murder-suicide, leaving their four children orphaned. It happened today at the family's Smith Avenue home. According to police, the eldest of the couple's four children, who is 13 years old, came home and was told through the front door by her father to get her younger siblings from school.She returned with the rest of the children, ages 10, 9 and 7, to find a note that said, "Mommy and daddy are hurt, call 911." Police say the children found their mother dead on the kitchen floor. The father was found upstairs by paramedics and later died at a hospital.Investigators say they believe the father may have killed his wife and then killed himself, although they say the investigation is continuing.Police have not yet commented on weapons or possible motives in the case.