Three friends of `` He believed he would never see Tsarnaev alive again , '' the affidavit said of Azamat Tazhayakov . Boston bombing suspect Alexander Tsarnaev are charged in federal court . Affidavit of actions , shortly after Boston bombers ' lights went out . The friends went to suspect 's dorm , found a backpack with fireworks with the powder out . They took this backpack and threw it away , the affidavit released Wednesday morning .
Three friends of Boston bombing suspect Alexander Tsarnaev are charged in federal court . Affidavit of actions , shortly after Boston bombers ' lights went out . The friends went to suspect 's dorm , found a backpack with fireworks with the powder out . They took this backpack and threw it away , the affidavit released Wednesday morning .