Accused bomber had a little-known and now deleted Instagram account . Digital traces still remain of Dzhokhar Tsarnaev 's deleted post . The two classmates say they are shocked by -- and in some cases skeptical of -- the charges being levied at the friend they knew as `` Jahar . '' Comment: One of Dzhokhar 's friends says he `` was the last person you 'd expect to do this ''
Accused bomber had a little-known and now deleted Instagram account . Digital traces still remain of Dzhokhar Tsarnaev 's deleted post . Comment: One of Dzhokhar 's friends says he `` was the last person you 'd expect to do this ''