Zubeidat Tsarnaeva, the mother of the two Boston Marathon bombing suspects, said in this 2013 file photo that authorities were wrong to suspect her sons of the bombings.
"Tamerlan was counseled by the FBI for three, five years," she said. "They knew what my son was doing. They knew what actions and what sites on the Internet he was going. How could this happen? How could they – they were following every step of him, and they're telling today this is a terrorist act."