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The Boston Globe

Metro

Russian officials had asked about older bombing suspect

A senior congressional aide privy to the Boston Marathon terror investigation confirmed Saturday that the FBI had been warned about alleged bomber Tamerlan Tsarnaev as far back as 2011, when his apparently suspicious activities prompted Russian authorities keeping close surveillance on militant Islamic groups in the Caucasus region of the former Soviet Union to contact US counterterrorism officials about him.

The 26-year-old suspected terrorist, who was killed in a firefight with police in Watertown early Friday morning, traveled to Russia from Boston several times in recent years, according to multiple US officials who have reviewed his passport file - including an extended stay in 2012.

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