BOSTON (AP) -- Two college friends of the surviving Boston Marathon bombing suspect face arraignment on charges of disposing evidence from his dormitory room.
Dias Kadyrbayev and Azamat Tazhayakov are scheduled to be arraigned Tuesday in federal court on charges of conspiracy to obstruct justice. If convicted, they face up to 20 years in prison.
Prosecutors say the 19-year-old men from Kazakhstan tried to thwart the investigations into the April 15 explosions by throwing away fireworks and other items they found in Dzhokhar Tsarnaev's dorm room the day before his capture.
Authorities later discovered the fireworks in a landfill.
Lawyers for both men have said they did nothing wrong.