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Associated Press
Pallbearers carry the casket of fallen Massachusetts Institute of Technology police officer Sean Collier into St. Patrick's Church before a funeral Mass, in Stoneham, Mass., Tuesday, April 23, 2013. Collier was fatally shot on the MIT campus Thursday, April 18, 2013. Authorities allege that the Boston Marathon bombing suspects were responsible. (AP Photo/Steven Senne)

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