How It Really Happened: Season 5, Episode 7

5 - 7: The Boston Marathon Part 1: Reconstructing the Crime Scene

On April 15th, 2013, two bombs explode during the iconic Boston Marathon, killing three spectators and injuring hundreds of others. In a race against time, investigators, using state of the art technology, circulate images to the public of the two suspects dubbed "black hat" and "white hat."