While preparations for Monday's Boston marathon press on, friends and colleagues remembered fallen MIT officer Sean Collier. The 26-year old was killed in the line of duty by the Boston Marathon ... more 
While preparations for Monday's Boston marathon press on, friends and colleagues remembered fallen MIT officer Sean Collier. The 26-year old was killed in the line of duty by the Boston Marathon bombing suspects, Vinita Nair reports. less 
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Sat, Apr 19, 2014 12:27 PM EDT