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Both victims were pronounced dead at the scene.
Police say a man fatally beat his son and the boy's mother in their Long Island apartment before killing himself by jumping in front of a LIRR train.
Suffolk County police say 42-year-old Scott Maxwell was killed by a Long Island Rail Road train Wednesday morning. The tracks run near his house.
They say officers who went to his East Northport home found the bodies of 47-year-old Ann Pabo and 13-year-old Connele Pabo.
Police said the apartment had a history of calls. However, they characterized them as harassment rather than violence.
They said Ann Pabo had been granted an order of protection against Maxwell. The couple was not married.
Copyright Associated Press / NBC New York