Dzhokhar Anzorovich Tsarnaev, of Chechen and Avar descent, was born on July 22, 1993, in Tokmok, Kyrgyzstan, to parents Anzor and Zubeidat Tsarnaev. His family, ethnic Chechens, had lived in Central Asia and later Dagestan, Russia, before immigrating to the United States in 2002 via Austria and Turkey, settling in Cambridge, Massachusetts. Tsarnaev became a naturalized U.S. citizen on September 11, 2012. He was known among friends as 'Jahar' and was described as a popular, pot-smoking college student prior to the events of 2013. Tsarnaev graduated from Cambridge Rindge and Latin School in 2011 and enrolled at the University of Massachusetts Dartmouth, aspiring to become a marine biologist but did not complete his degree. Radicalized partly through his older brother Tamerlan's influence and online jihadist materials, Tsarnaev participated in the April 15, 2013, Boston Marathon bombing attack. After a massive manhunt, he was arrested on April 19, 2013, in Watertown, Massachusetts, with self-radicalization motives cited in court, including opposition to U.S. wars in Iraq and Afghanistan. Convicted in 2015 on 30 counts, including murder and use of a weapon of mass destruction, he received a death sentence in 2015; this was vacated in 2020 by federal appeals court citing juror bias but reinstated by the U.S. Supreme Court in 2022. Currently housed at the ADX Florence supermax prison in Colorado, Tsarnaev has been involved in ongoing appeals and has expressed remorse in some communications. His case highlighted issues of homegrown terrorism, immigrant radicalization, and capital punishment, with his defense arguing brainwashing by his brother.