At 2:50 pm on April 15, 2013, two bomb blasts turned the Boston Marathon finish line from a scene of triumph into a scene of tragedy, and a city gripped by heartbreak and terror. Less than five days later, the key suspects were identified and apprehended; one dead, the other in custody. How did investigators transform the chaos of the bombing into a coherent trail of clues, pointing to the accused killers?

Documentary. Title from disc label. "Technology's role in catching the Marathon bombing suspects." -- Container. Originally produced as an episode of the television series: Nova.