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'Person Of Interest' Identified In NH Home Explosion

MANCHESTER, N.H. (CBS/AP) — The New Hampshire attorney general's office says the deaths of a man and a woman found in a Manchester house after an explosion and fire are suspicious, and they're looking for a person of interest in the case.

Police are looking for help finding 38-year-old Matthew Dion, who is possibly driving a white 2009 Nissan Altima with New Hampshire registration 3410587.

Dion is the son of Robert and Connie Dion, who are listed as the owners of the split-level house on Mooresville Road.

Manchester Explosion
The couple was strangled five days before firefighters found their bodies in their burning home in Manchester. (Photo by Karen Twomey-WBZ NewsRadio 1030)

Matthew Dion is 5-feet 8-inches tall and weighs about 200 pounds.  He has brown hair and brown eyes.

The victims of the fire and explosion have not been identified and it's not clear if they are Dion's parents.

Neighbors say they have not heard from the couple recently.

Robert Dion was a long-time stamp enthusiast and he had a valuable collection, according to WBZ-TV's Michael Rosenfield.

There's still no word on what caused the incident Monday afternoon.

The office of the chief medical examiner will be conducting autopsies on the bodies and will work to determine the identities.

Earlier, firefighters said they ruled out a natural gas explosion because the home doesn't have a gas line.

(TM and © Copyright 2014 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2014 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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