article_snippet: Three people were killed and more than 260 were injured when two pressure-cooker bombs exploded near the finish line of the marathon.
article_snippet: A bomb expert also testified in court on Wednesday, about the improvised weapons found at the scene of the Tsarnaevs' shootout with police in Watertown, days after the bombing .
article_snippet: Members of the jury deciding accused Boston bomber Dzhokhar Tsarnaev's fate look at one of the unexploded bombs in court on Wednesday .
article_snippet: During earlier testimony Wednesday, jurors were shown two pipe bombs hurled at police during the shootout.
article_snippet: Neither of two pipe bombs hurled at police during the shootout exploded, but a third pipe bomb did.
article_snippet: A pressure-cooker bomb similar to two pipe bombs hurled at police during the shootout caused a powerful explosion that shook houses on the street and sent debris raining down on police.
article_snippet: Trooper Robert McCarthy also showed the jury a Tupperware container filled with explosive powder and fuses found in a car stolen by the Tsarnaevs just before the firefight with police.
article_snippet: Jurors were shown unexploded pipe bombs from the brothers' shootout with police on April 18 in the neighborhood of Watertown .