Boston Marathon winner drew motivation from attacks

      |The 2014 Boston Marathon winner, Meb Keflezighi, was a spectator when bombs rang out at last year's race. He tells Jeff Glor he took motivation from the attacks and wrote the names of those who died on the four corners of his bib. Many runners dedicated the race to those affected by the bombings, and many survivors took to the course to reclaim the marathon.

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