Zubeidat Tsarnaeva performs for the press.
"[FBI agents] came and asked him, what are you doing, what are you up to?" she recalled. "They said Tamerlan was an influential lad, he had the personality of a leader and they asked me, 'Don't you have any thoughts that he could organise some kind of group of a terrorist persuasion?'"
"They said they'd seen what kind of videos he'd been looking at. And they told me that they keep young leaders among Muslims under control so there aren't any bombings, so that they don't fall under someone's influence."
"It is really, really a hard thing to hear. And being a mother, what I can say is that I am really sure, I am, like, 100 percent sure, that this is a set-up."
Are you, like, 100 percent sure of anything?