From Fox News:
Prior to the latest development, authorities had named only brothers Tamerlan and Dzhokhar Tsarnaev as suspects in the April 15 bombing at the finish line of the Boston Marathon.
Two of Dzhokhar Tsarnaev’s UMass-Dartmouth roommates, Dias Kadyrbayev and Azamat Tazhayakov, are from Kazakhstan and faced an immigration hearing this morning, sources said. Sources told Fox News they face obstruction charges in connection with the bombing. The identity of the third suspect is unclear.
Kadyrbayev and Tazhayakov are suspected of taking computers and other equipment from Dzhokhar Tsarnaev’s apartment and trying to dispose of it after the bombings, sources told Fox News.
Three people were killed and more than 200 injured when the pair allegedly set two bombs, at least one of which was made from a pressure cooker packed with explosives and shrapnel, amid the crowd.