A deliberately set fire destroyed a Portsmouth, New Hampshire, residence at 314 Islington Street in the early morning hours of October 11, 1986. The blaze, reported about 3:25 a.m., killed 24-year-old Terry Giles and 29-year-old Joseph Poulin. A third resident, 39-year-old Linda Plummer, was pulled from the home with severe burns and later died on March 30, 1987.

Investigators ruled the fire an arson and classified all three deaths as homicides. The Portsmouth Police Department opened a long investigation and has continued to seek public help, but no arrests or public identifications of suspects have been announced.

Does anyone have information about the occupants of 314 Islington Street or recalls unusual activity in that neighborhood around October 1986?