Authorities say a New Hampshire police officer was shot to death after he responded to a domestic disturbance at a home that later exploded and burned.
The gunman is presumed dead in the ensuing blaze.
Attorney General Joseph Foster says Monday night 48-year-old Steven Arkell of Brentwood was shot to death when he answered the call in a suburban neighborhood.
After the shooting, the house burst into flames. A massive explosion blew the front off the house and within an hour, it was leveled.
The house is in a 55 and over community that is 5-7 years old, according to town officials.
Foster says 47-year-old Michael Nolan, the son of the homeowner, is the suspected gunman. He is presumed dead.
A third person was taken to a hospital.
Neighbors say they heard a series of gunshots before the explosion, which they say was extremely loud. Neighbors were initially evacuated from their homes but have now been allowed to return home.
(Information from the Associated Press was used in this story)