People take to Twitter, Instagram and elsewhere to express their grief and hope

By Kathy Ehrich Dowd
April 15, 2014 03:15 PM
Bill Sikes/AP

It started as a celebratory scene in Boston’s Copley Square on April 15, 2013, as thousands gathered to cheer on runners crossing the finish line at the Boston Marathon, a proud New England tradition for 117 years.

Yet in a flash the site transformed from one of triumph to one of tragedy as a bomb suddenly exploded, and then another, in a terrorist attack that killed three and injured nearly 300.

Today, on the first anniversary of the Boston Marathon bombing, people took to Twitter, Instagram and other social-media sites to remember those lost and to honor the “Boston Strong” spirit that emerged in the city.

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