FBI experts chose to build mock-ups of every single explosive device connected to the Boston Marathon bombings.
Bomb expert Edward Knapp identified photos of items found at the scene of the twin bombings, including a hobby fuse, a toggle switch, small Christmas tree bulbs and electronic speed controllers
Jurors followed a remarkable evidence trail about how FBI agents identified where the pressure cookers were believed to be purchased.
The items were found four days after the 2013 terror attack.
Leftover BBs and receipts for the purchase of a pellet gun were found in Dzhokhar Tsarnaev’s UMass Dartmouth dorm room.
A lawyer for the Boston Marathon bomber aggressively questioned an FBI computer expert Monday.
The Tsarnaev brothers left behind a mountain of evidence in the aftermath of their firefight with Watertown police.
An FBI agent testifying in the Boston Marathon trial says shrapnel from the explosives the bombers hurled at police days after the 2013 attacks was found up to a block away.
Bombs made out of pipes and a Rubbermaid plastic container were shown to jurors on Wednesday.
The note was carved into wooden slats inside the Watertown boat where Dzhokhar Tsarnaev hid from police for hours.