was naturalized Dzhokhar Tsarnaev, 19, and Tamerlan Tsarnaev, was naturalized Tamerlan Tsarnaev was naturalized http://abcnews.go.com/US/boston-marathon-bomb... was naturalized was naturalized was naturalized http://abcnews.go.com/US/boston-marathon-bomb... a naturalized American citizen ABCNEWS an American citizen was naturalized