The FBI revealed on Friday that they had interviewed Boston Marathon bombing suspect Tamerlan Tsarnaev in 2011, after a foreign government alerted officials that he had possible ties to extremists.

Federal officials vetted Tamerlan Tsarnaev but their probe not produce any ‘derogatory’ information and the matter was put ‘to bed,’ a U.S. law enforcement source said.

The revelation is the first indication that Tamerlan Tsarnaev and his younger brother, Dzhokhar, were known to U.S. security officials prior to Monday’s bombings, U.S. authorities said.

FBI interviewed Boston Marathon bombing suspect Tamerlan Tsarnaev, 26, for possible extremist ties two years ago but found no incriminating information | Mail Online

h/t to Dave G