Soviet-born criminal who, along with his brother, was responsible for the April 13, 2013 Boston Marathon bombings.
He moved to the United States in 2002 and studied briefly at Bunker Hill Community College before dropping out to train as a heavyweight boxer.
He began subscribing to Muslim extremist views in 2008.
He and his brother, Dzhokhar, were born to a Chechen father named Anzor Tsarnaev and to an Avar mother named Zubeidat Tsarnaeva.
He and Oklahoma City bomber, Timothy McVeigh, were both responsible for acts of terrorism.