Boston April 15, 2018 3:32 pm Old South Church Bells Ring as Boston Observes Moment of Silence At 2:49 p.m., the bells of Old South Church rang as Boston held a citywide moment of silence US & World Videos 2:31 Billerica police sergeant killed in crash honored at funeral 2:05 MIT monitors pair of opposing protests on campus 3:41 Cool air to linger over Boston into the weekend 2:01 Remembering Billerica police Sgt. Ian Taylor 3:17 Cooling back down, weekend turns wet in Boston