Boston Police say they have arrested three additional suspects in the April 15 Boston Marathon bombings.
Brothers Tamerian and Dzhokar Tsarnaev are accused of carrying out the twin bombings which killed three people and wounded over 200. Tamerian Tsarnaev died following a shootout with police April 18. Dzhokar Tsarnaev, 19, is in custody in a federal prison medical center at Fort Devens. He is charged with using a weapon of mass destruction. The two brothers, both Russian natives, are also accused of killing an MIT police officer, but no charges have been filed in that case.
Dzhokar Tsarnaev was a student at the University of Massachusetts at Dartmouth at the time of the bombings.
More as this develops.