Disaster_Accident

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This undated photo released by the Boston Fire Department via Twitter shows Lt. Edward J. Walsh, killed Wednesday, March 26, 2014, when trapped in the basement while fighting a fire in an apartment building in Boston. Walsh, 43, and a father of three, was assigned to Engine 33, and had been a firefighter for almost a decade. (AP Photo/Boston Fire Department)

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This undated photo released by the Boston Fire Department via Twitter shows firefighter Michael R. Kennedy, killed Wednesday, March 26, 2014, when trapped the basement while fighting a fire in an apartment building in Boston. Kennedy, 33, a Marine Corps combat veteran was assigned to Ladder 15, and had been a firefighter for more than six years. (AP Photo/Boston Fire Department)

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Emergency medical technician David Stewart places flowers at a makeshift memorial on the front of fire station Engine 33/Ladder 15, Thursday, March 27, 2014, in Boston. Engine 33/Ladder 15 was the station of fallen firefighters Lt. Edward Walsh and Michael Kennedy, who lost their lives fighting a nine-alarm blaze in a four-story brownstone in Boston's Back Bay neighborhood Wednesday, March 26, 2014. (AP Photo/Steven Senne)

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A firefighter pauses between cars near the burned remains of a four-story brownstone, Thursday, March 27, 2014, in Boston. Two firefighters, Lt. Edward Walsh and Michael Kennedy, lost their lives fighting a nine-alarm blaze that destroyed the structure in Boston's Back Bay neighborhood Wednesday, March 26, 2014. (AP Photo/Steven Senne)