The surviving Boston Marathon bombing suspect has reportedly admitted his role in the bombing plot, but said he was not directed by foreign terrorists.
From his hospital bed, Dzhokar Tsarnaev is said to have told his interrogators, his brother Tamerlan convinced him to take part in the attack, because he saw it was a way to defend Islam.
Tsarnaev said he and his brother were self-radicalized, not trained by outside groups.
The FBI investigated Tamerlan Tsarnaev two years ago at Russia’s request, but found no evidence to suggest he posed a danger, and closed its investigation.
Tsarnaev was reportedly on a national watch list of potential terrorists, but his daily activities may have gone unexamined because of the sheer size of the list.