Classmates of suspected bomber Dzhokar Tsarnaev suggest 'brainwashing' by older brother

"Young said Tsarnaev once talked about his older brother, and noted that it seemed like the teenager looked up to him. He suggested that Dzhokhar might have been subject to "brainwashing."

"I definitely think that's what happened, at least with his brother," Young said. "It is speculation. That's how I feel like it happened."

By Miranda Leitsinger, Staff Writer, NBC News