Tsarnaev's friends charged with obstructing justice

Kazakh students Azamat Tazhayakov and Dias Kadyrbaev were formally accused by the court of the State of Massachusetts of creating obstacles to justice in investigating the terrorist attack on the Boston Marathon.

According to the FBI, Tazhayakov and  Kadyrbaev tried to destroy evidence in the room of Johar Tsarnaev, one of the two brothers accused in the attack.