In this June 23, 2013 file photo, debris is strewn about where a condominium exploded on Gables Drive in Yarmouth. Gregory Rec/Staff Photographer

In this June 25,2013 file photo, frefighters and members of the state fire marshall ofiice search the rubble for evidence after officials said Peter Corey was killed when his home at 50 Gables Drive in Yarmouth was leveled by an explosion. John Patriquin/Staff Photographer

In this June 25, 2013 photo, the aftermath of a gas explosion at a condo unit at North Gables on , Gables Drive in Yarmouth. John Patriquin/Staff Photograher

In this June 26, 2013 photo, a Yarmouth firefighter looks at the damage done to a house that was adjacent to an explosion. Gabe Souza/Staff Photographer

In this June 26, 2013 file photo, a Yarmouth firefighter enters a condemned residence at 48 Gables Drive in Yarmouth to survey damage after an explosion rocked a house at 50 Gables Drive. Gabe Souza/Staff Photographer

In this June 26, 2013 file photo, Robert MacKay surveys the remains of his house at 52 Gables Drive in Yarmouth. Gabe Souza/Staff Photographer

Rosemary and Bruce MacKay stand near their Gables Drive, Yarmouth home which is being rebuilt after being destroyed in an explosion from a propane leak in the next door neighbor's basement. A new propane line is buried in a trench behind them. Carl D. Walsh/Staff Photographer

Rosemary and Bruce MacKay walk near their Gables Drive, Yarmouth home Sunday, which is being rebuilt after being destroyed in an explosion from a propane leak in the next door neighbor's basement. Carl D. Walsh/Staff Photographer