Day of tributes to mark Boston Marathon bombing anniversary Published April 15, 2014 - Associated Press BOSTON – The anniversary of the Boston Marathon bombings started with a solemn wreath-laying ceremony Tuesday morning at the site of the twin explosions, the first tribute in a day dedicated to honoring the three people who died, the more than 260 people who were injured, and the first responders, doctors and nurses who helped them. The ceremony was attended by the families of the three bombing victims -- Martin Richard, Krystle Campbell and Lu Lingzi -- as well as relatives of Ma**achusetts Institute of Technology police Officer Sean Collier, who was k**ed in the aftermath of the blasts. Gov. Deval Patrick, Mayor Martin Walsh and Boston Cardinal Sean O'Malley were among those who attended the ceremony held in a light rain amid the music of bagpipes. O'Malley offered a prayer. Vice President Joe Biden, Patrick and former Mayor Tom Menino will be among the dignitaries expected to honor the victims later Tuesday during a program at the Hynes Convention Center. Speakers also will include survivors of the bombing.