Two college friends of Boston Marathon bomber Dzhokhar Tsarnaev — Azamat Tazhayakov and Robel Phillipos — have been sentenced in federal court today, for charges related to helping him after the bombing.

The two former University of Massachusetts Dartmouth classmates appeared solemn in court Friday.

Tazhayakov was sentenced to three and a half years in prison for removing a backpack and laptop computer from Tsarnaev’s dorm room. He choked back tears as he apologized to the city of Boston and to his family.

Phillipos chose not to speak before he was sentenced to three years for lying to investigators about his whereabouts that night. They have already been in jail for more than two years, and that time will be applied to their sentences.