Tags: Bombing

The bombs that tore through the crowd at the Boston Marathon in a deadly 2013 attack were powered by flash powder used in fireworks, an FBI chemist said on Thursday as prosecutors move toward the end of their case.

The jury hearing the Boston Marathon bombing trial on Wednesday will hear more evidence about what FBI agents found when they searched Dzhokhar Tsarnaev's college dorm room days after the deadly attack.

The trial of accused Boston Marathon bomber Dzhokhar Tsarnaev resumes on Monday with more testimony about jihadist literature found on his laptop, cellphone and other devices after the deadly 2013 attack.