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BOSTON (NEWS CENTER) -- One year ago, Boston Marathon runners were preparing themselves for a day of celebration, physical challenge and excitement. Nobody expected the tragedy to come from the terrorist attack at the finish line. On the anniversary, Tuesday, April 15, 2014, the city will remember those lost during the bombings and the fear it caused.

Starting at noon, the city will have a procession head down Boylston Street. A moment of silence will follow at exactly 2:49 p.m., the moment the first bomb exploded last year. Every church in Boston will ring its bells. The mayor will talk about the "Boston Strong" spirit that pulled the city together in the face of fear and tragedy.

Last year's Boston Marathon ironically started with a tribute to the victims of another tragedy. Runners and onlookers observed a moment of silence for those killed in the Sandy Hook Elementary shooting in Newtown, Connecticut. An hour later at 10 a.m., the first wave of runners began the race. The first explosion erupted near the finish line 2:49 p.m. A second explosion followed moments later about a block away. Just after 6 p.m., President Obama addressed the nation. Just after his address, an 8-year-old boy was confirmed as one of two dead. Then just before 9 o'clock, the Boston Police commissioner confirmed the death toll climbed to three. All together, more than 250 people were injured due to the bombs.

The manhunt began and investigators worked to discover who was behind the terrorist attacks. After watching hours of video and looking through photos, investigators had two suspects. The suspects were later identified as Tamerlan and Dzhokhar Tsarnaev, brothers. During the capture, which included a shoot-out that killed an MIT officer, Tamerlan died. Dzhokhar is awaiting federal trial.

The memorial will be streaming on NEWS CENTER's website. NEWS CENTER will be live in Boston all week long, up until the actual marathon.

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