Key Moments, Evidence From Tsarnaev Trial Day 9: Delving Into Watertown Evidence

Several investigators testified in the Boston Marathon bombing trial Wednesday about evidence recovered after the shootout in Watertown.

Here are four highlights from Wednesday's testimony, and see all of Wednesday's updates here.

-Massachusetts State Police Trooper Robert McCarthy testified about the two unexploded pipe bombs recovered from the scene on Laurel Street in Watertown after the shootout between the Tsarnaev brothers and police.

The two bombs were constructed using metal piping filled with gunpowder and BB's and a green hobby fuse used to activate them. Both bombs were shown to jurors in person.

This article was originally published on March 18, 2015.


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Jack Lepiarz Reporter and Anchor
Jack Lepiarz was a reporter and anchor at WBUR.



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