Sources say he has since stopped talking with the government . Tsarnaev had multiple gunshot wounds , court documents say . The FBI has said that the brothers were radicalized in 2012 and 2013 by a U.S. government informant who was posing as an Islamic State militant online. Tsarnaev was read his Miranda rights on April 22 . He faces 30 federal charges tied to the April 15 bombing .
Tsarnaev had multiple gunshot wounds , court documents say . The FBI has said that the brothers were radicalized in 2012 and 2013 by a U.S. government informant who was posing as an Islamic State militant online. Tsarnaev was read his Miranda rights on April 22 . He faces 30 federal charges tied to the April 15 bombing .