#FBI releases photos of 2 suspects in Boston Marathon bombings, asks the public's help in identifying them. FBI confirms photo of bomber suspects, possible bomb before explosion. #BostonMarathonSuspectPhoto, #BostonTerrorAttack, #FBIInvestigationMarathon, #BostonBombing, #BostonBombings, #BostonBombingsInvestigation, #BostonBombingsSuspect, #BostonMarathon, #BostonMarathon2013, #BostonMarathonBombing, #CrimeNews, #FBI