Tsarnaev has already been found guilty on 30 separate charges relating to the attack in 2013.

特萨尔纳伊夫已被判处与2013年爆炸案有关的30项罪名成立。

He's also reached a deal with prosecutors over a separate charge that one accuses him of possessing a firearm while he was addicted to drugs.

他还就另一项指控与检察官达成协议， 指控他在吸毒成瘾时持有枪支。