Marathon bombing anniversary wreath laying

Cardinal Sean O’Malley, Boston Mayor Martin J. Walsh and Massachusetts Gov. Deval Patrick, join the families of those killed in the 2013 Boston Marathon bombings for a prayer, wreath laying and moment of silence at the site of the second explosion on Boylston Street in Boston, April 15, the first anniversary of the attack. (Pilot photos/ Gregory L. Tracy)

A woman places her hand over her heart as a wreath is placed by victims’ families at the site of the second Boston Marathon bombing explosion April 15, the first anniversary of the attack. (Pilot photo/ Gregory L. Tracy)

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A woman places her hand over her heart as a wreath is placed by victims’ families at the site of the second Boston Marathon bombing explosion April 15, the first anniversary of the attack. (Pilot photo/ Gregory L. Tracy)