BOSTON - A federal grand jury Thursday charged two friends of Boston Marathon bombing suspect Dzhokhar Tsarnaev on charges of obstructing justice and conspiracy to obstruct justice in the case, the U.S. attorney's office in Boston said.
Azamat Tazhayakov and Dias Kadyrbayev, both 19 and of Kazakhstan, had been charged in May, but only with the conspiracy count.
Thursday's indictment accuses Tazhayakov and Kadyrbayev of helping Tsarnaev after the April 15 bombing by taking items from his dorm room at the University of Massachusetts-Dartmouth to keep them from investigators.
If convicted, Tazhayakov and Kadyrbayev could be sentenced to a maximum 20 years in prison on the obstruction count and up to five years on the conspiracy count, the U.S. attorney's office said. They also could be fined $250,000.