A classmate of Dzhokhar Tsarnaev, the Boston Marathon bombing suspect, was indicted Thursday on two counts of making false statements during the investigation. The man, Robel Phillipos, 19, is accused of concealing from investigators the fact that he accompanied two of Mr. Tsarnaev’s other friends, Dias Kadyrbayev and Azamat Tazhayakov, to Mr. Tsarnaev’s dormitory at the University of Massachusetts Dartmouth days after the bombing. Investigators say that the men removed items including a laptop and a backpack, and that Mr. Kadyrbayev disposed of the backpack. Mr. Phillipos could face up to eight years in prison on each count and a $250,000 fine. Mr. Kadyrbayev and Mr. Tazhayakov have been charged with obstruction of justice.