Outside Marathon Sports, near where the first of two bombs blew up, the moment of silence at 2:49 p.m. Monday was followed with the longest cheer of the day. People screamed, whooped, whistled, clapped and rang cowbells to celebrate how the city continues to move forward after last year's deadly bombing. Three people were killed and more than 260 were injured in 2013.
Authorities say two brothers built pressure cooker bombs and placed them near the finish line. Tamerlan Tsarnaev died following a police shootout several days after the bombings. His younger brother, Dzhokhar Tsarnaev, has pleaded not guilty to 30 federal charges and is awaiting trial.