U.S. News
1 / 16    

Boston Marathon Bomb Probe: Gathering Evidence

A young girl cries with her mother during the vigil for eight-year-old Martin Richard, from Dorchester, who was killed by an explosion near the finish line of the Boston Marathon on April 16, 2013 at Garvey Park in Boston, Massachusetts

» more from U.S. News

Boston Bomb Probe: Gathering Evidence

By Day 3 of their investigation, authorities scouring the bombing scene—on the ground and on rooftops—and viewing countless videos and photos of the Boston Marathon finish line were able to gather significant evidence. Here are images of some of what they found. The evidence photos were released by investigators. Meanwhile, friends and strangers remembered the victims.

Related: Day 1 Scenes From the Bombing

By CNBC.com
Posted 17 April 2013

Getty Images