A Massachusetts State Trooper salutes in front of a make shift memorial for two Boston fire fighters, who died fighting a fire in a Back Bay apartment building, in front of their fire house in Boston,... more 
A Massachusetts State Trooper salutes in front of a make shift memorial for two Boston fire fighters, who died fighting a fire in a Back Bay apartment building, in front of their fire house in Boston, Massachusetts March 27, 2014. Investigators continue to probe the cause of the nine-alarm fire in a four story apartment building that killed Lieutenant Edward Walsh and Firefighter Michael Kennedy on March 26. REUTERS/Katherine Taylor (UNITED STATES - Tags: DISASTER) less 
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Reuters | Photo By KATHERINE TAYLOR / KATHERINE TAYLOR
Thu, Mar 27, 2014 4:34 PM EDT