Samantha Herwig, of Salem reacts while crossing the finish line of the Run to Remember honoring fallen MIT Police officer Sean Collier in Boston, Massachusetts May 26, 2013. Herwig, who ran the Boston Marathon said she ran the last  six miles of the marathon with her friend who didn't get to finish, and today she was running for her.

Samantha Herwig, of Salem reacts while crossing the finish line of the Run to Remember honoring fallen MIT Police officer Sean Collier in Boston, Massachusetts May 26, 2013. Herwig, who ran the Boston Marathon said she ran the last six miles of the marathon with her friend who didn’t get to finish, and today she was running for her.