Khairullozhon Matanov was a friend of Tamerlan Tsarnaev and an acquaintance of Dzhokhar Tsarnaev. He pleaded guilty in March to misleading the FBI after the 2013 bombings by deleting his computer files and failing to disclose contact he had with the brothers.
Under a plea agreement with prosecutors, a judge sentenced Matanov today to two and a half years in prison.
The Kyrgyzstan native wasn't accused of knowing about the bombings beforehand or participating in the attack.