Boston marks 5 years since marathon attack with tributes

BOSTON — The bells of Old South Church in Boston rang at 2:49 p.m. to commemorate a citywide moment of silence in honor of Boston Marathon bombing survivors and victimsIt was an emotional moment in a day filled with service projects and ceremonies to remember those impacted by the deadly bombings five years ago.Boston began the anniversary of the attacks Sunday with Mayor Marty Walsh and Gov. Charlie Baker laying wreaths early in the morning at the spots along downtown Boylston Street wher