Jim Armstrong

Jurors see mock-up of pressure cooker bomb in Tsarnaev trial. (Credit Jane Rosenberg)

Jurors See Mock-Up Of Pressure Cooker Bomb In Tsarnaev Trial

FBI experts chose to build mock-ups of every single explosive device connected to the Boston Marathon bombings.

03/26/2015

Pipe bomb evidence. (Image Credit: U.S. Attorney's Office)

FBI Expert: Boston Marathon Bombs ‘Not Too Difficult’ To Build

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

03/26/2015

Tamerlan Tsarnaev leaves Watertown Target after buying two new backpacks the day before the bombings. (Image Credit: U.S. Attorney's Office)

Video Shows Tsarnaev Leaving Target With Backpacks Before Bombing

Jurors followed a remarkable evidence trail about how FBI agents identified where the pressure cookers were believed to be purchased.

03/25/2015

Dzhokhar Tsarnaev's bedroom. (Image Credit: U.S. Attorney's Office)

Pressure Cooker Parts, BBs, Nails Found In Tsarnaev Family Home

The items were found four days after the 2013 terror attack.

03/25/2015

Dzhokhar Tsarnaev in federal court, March 18, 2015. (Sketch credit: Jane Rosenberg)

BBs, White Hat Among Evidence Found In Tsarnaev’s Dorm Room

Leftover BBs and receipts for the purchase of a pellet gun were found in Dzhokhar Tsarnaev’s UMass Dartmouth dorm room.

03/24/2015

Kevin Swindon, a supervisory special agent for the cyber squad at the FBI's Boston office, testified March 19, 2015. (Sketch credit: Jane Rosenberg)

Tsarnaev Lawyer Aggressively Questions FBI Computer Expert

A lawyer for the Boston Marathon bomber aggressively questioned an FBI computer expert Monday.

03/23/2015

Jurors saw evidence from the Watertown firefight during the Tsarnaev trial on Thursday. (WBZ-TV)

Jurors See Watertown Firefight Evidence In Tsarnaev Trial

The Tsarnaev brothers left behind a mountain of evidence in the aftermath of their firefight with Watertown police.

03/19/2015

FBI special agent and bomb expert Brian Corcoran  with one of the pressure cooker bombs, March 19, 2015. (Sketch credit: Jane Rosenberg)

FBI Agent: Shrapnel From Bombs Thrown At Watertown Police Found Block Away

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.

03/19/2015

Pipe bomb used by Tsarnaev brothers in Watertown (WBZ-TV)

Homemade Explosives Shown To Jurors In Marathon Bombing Trial

Bombs made out of pipes and a Rubbermaid plastic container were shown to jurors on Wednesday.

03/18/2015

Note left by Dzhokhar Tsarnaev in Watertown boat. (WBZ-TV)

Jurors In Marathon Bombing Case See Second Note Left In Watertown Boat

The note was carved into wooden slats inside the Watertown boat where Dzhokhar Tsarnaev hid from police for hours.

03/17/2015

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