Camillus, N.Y. – A Camillus house fire earlier this month that killed a married couple has been ruled accidental, with the exact cause undetermined, police said Monday. Constance L. Johnson, 71, and her husband, Anthony W. Johnson, 77, died when their home at 201 Mansfield Drive caught fire Jan. 16. Constance died in the fire. Her husband died later at a hospital.