Jurors followed a remarkable evidence trail about how FBI agents identified where the pressure cookers were believed to be purchased.
The Tsarnaev brothers left behind a mountain of evidence in the aftermath of their firefight with Watertown police.
A restaurant owner says police destroyed a pressure cooker on Western Ave.
The bomb squad blew up a pressure cooker left unattended on a street in East Boston Tuesday morning.
Police were dispatched to a local Rite-Aid store on Monday morning for a report of a suspicious pressure cooker.
A pressure cooker left in a parking garage created a brief scare at the Square One Mall Monday.
These are the first images of the remains of one of the two bombs that exploded at the Boston Marathon finish line, April 15, 2013.
The two devices used in the Boston Marathon bombings were improvised explosive devices (IEDs), according to CBS News.