Disaster_Accident

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ADDS LAST SENTENCE - A firefighter, right, lowers his head at the scene of a multi-alarm fire at a four-story brownstone in the Back Bay neighborhood near the Charles River, Wednesday, March 26, 2014, in Boston. A Boston city councilor said two firefighters have died in a fire that ripped through a brownstone. (AP Photo/Steven Senne)

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ADDS LAST SENTENCE - Firefighter look on at the scene of a multi-alarm fire at a four-story brownstone in the Back Bay neighborhood near the Charles River, Wednesday, March 26, 2014, in Boston. A Boston city councilor said two firefighters have died in a fire that ripped through a brownstone. (AP Photo/Steven Senne)

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ADDS LAST SENTENCE - A firefighter places his hand on the shoulder of another at the scene of a multi-alarm fire at a four-story brownstone in the Back Bay neighborhood near the Charles River, Wednesday, March 26, 2014 in Boston. A Boston city councilor said two firefighters have died in a fire that ripped through a brownstone. (AP Photo/Steven Senne)