Going Inside The Marathon Investigation In 'Manhunt'

In the moments after two bombs exploded near the finish line of the Boston Marathon last month, detectives around the country had already begun their investigation into the attack.

From examination of the explosions themselves, to gathering surveillance footage and pictures from the scene — all this information led to the identification and capture of the bombing suspects within just 5 days of the attack.

The investigative techniques and the technological advancements that have made them possible are explored in a new NOVA documentary titled "Manhunt: Boston Bombers." Producer Miles O'Brien joins us for a preview.

Miles O'Brien, freelance broadcast and web journalist who focuses on science, technology & aerospace. His new documentary for NOVA is  Manhunt: Boston Bombers.