Rebekah Gregory

BOSTON (AP) — One was an attacker. One was a volunteer first responder. One lost her leg. Another lost his little boy. And a police officer very nearly lost his own life.

Half a decade ago, these five lives probably never would have intersected. Then bombs bloodied the finish line of the Boston Marathon, killing three spectators, wounding 260 others, and forever linking a villain to his victims and the heroes who rushed to help them.