Azamat Tazhayakov, left, and Dias Kadyrbayev are shown with Dzhokhar Tsarnaev, right. Tazhayakov and Kadyrbayev were convicted of obstruction of justice, but a recent U.S. Supreme Court decision on a different case may call those convictions into question.
A courtroom sketch shows college friends Tazhayakov, Kadyrbayev and Robel Phillipos (left to right) at a hearing in May 2015. Tazhayakov and Kadyrbayev were convicted of hiding evidence and Phillipos was convicted of lying to federal investigators.
Phillipos was convicted in October of two counts of lying to FBI agents about being in Dzhokhar Tsarnaev's dorm room after the Boston Marathon bombing. A laptop and a backpack were removed from the room by Tsarnaev's friends.
This backpack, belonging to Tsarnaev, was shown during the trials of his friends. The backpack was taken from Tsarnaev's dorm room after the Boston Marathon bombing and tossed in a dumpster. The FBI later found it in a landfill.
Fireworks, some of them hollowed out of gunpowder, were found inside the backpack taken from Tsarnaev's dorm room.