A deliberately set fire in Manchester, New Hampshire killed two people on October 24, 1978. Firefighters were called to 541-547 Chestnut Street; after the blaze was extinguished the bodies of 51-year-old Ray Blanchette and 53-year-old Pauline Miller were discovered inside. The State Fire Marshal later ruled the fire arson and both victims’ causes of death were listed as smoke inhalation.

The incident has been treated as a double homicide. Despite an investigation, no arrests have been announced and no suspects have been publicly identified; the case eventually went cold. Anyone with information about the fire, the victims, or activity around Chestnut Street on or before October 24, 1978 is asked to contact authorities.