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Today is the one-year anniversary of the bombing at the Boston Marathon. Three people were killed and more than 260 were injured in the attack, and an MIT police officer was killed four days later. The Boston community and the entire country rallied together in the victims' honor, and celebrated when a day-long manhunt ended with the capture of the one surviving suspect. Here, a man is loaded into an ambulance after the bombing. Click through to see the rest of the images that defined the story. (Getty)