Accused man had a little - known and now deleted Instagram account . Digital copies still exist of Sergei Tsarnaev 's deleted account . Investigators are likely to look closely at the paper trail . One of Dzhokhar 's friends says he ` ` was the last person you 'd want to do this ''
Accused bomber had a little-known and now deleted Instagram account . Digital traces still remain of Dzhokhar Tsarnaev 's deleted post . Investigators are likely to look closely at the Instagram trail . One of Dzhokhar 's friends says he `` was the last person you 'd expect to do this ''