Smells like another FBI entrapment scheme like the Portland Xmas bomb attempt, only this time it was not prevented.
"When he came back he starting posting more radical jihadist YouTube videos and started becoming more of a fundamentalist Muslim," Rep. Michael McCaul, chairman of the House Homeland Security Committee, told ABC News Friday.
"My concern is that he may have gone over there to visit his father and he received training and then became radicalized and then came back. Something happened in that period of time. He was not like that before," McCaul said.
The FBI, meanwhile, also looked into Tamerlan Tsarnaev in 2011.
In a statement Friday, the bureau said it investigated Tsarnaev on behalf of a foreign government, though it did not reveal which one.
"The request stated that it was based on information that he was a follower of radical Islam and a strong believer, and that he had changed drastically since 2010 as he prepared to leave the United States for travel to the country's region to join unspecified underground groups," the FBI statement said.
The bureau said that in response to the request it combed through its databases and interviewed the man and members of his family, but did not find any evidence he was tied to terror groups.
"The FBI did not find any terrorism activity, domestic or foreign, and those results were provided to the foreign government in the summer of 2011.
