Police say a man killed his ex-girlfriend and her new boyfriend in a suburban St. Louis home, then called his father and confessed before killing himself.

Hazelwood police Chief Carl Wolf says the father alerted police to go to the home late Sunday. The father says 23-year-old Michael Dean Bullington confessed to the killings and asked him to take care of his children.

Bullington fled but committed suicide in his car shortly afterward. Wolf says the three children in the home were believed to have witnessed the killings.

Killed were 23-year-old Ashlin Munday and 24-year-old Daniel Smith.

Bullington and Munday were the parents of a 3-year-old girl and a 2-year-old boy. The other child — a 3-year-old boy — was Smith's son.