Prosecutors allege in newly released court documents that Boston Marathon bomber Dzhokhar Tsarnaev showed “the opposite of remorse” when he was captured days after the 2013 attack.

Tsarnaev was convicted last year and sentenced to death for his role in an attack that killed three people and injured more than 260. At his sentencing hearing, he said he was sorry for the lives he took and the suffering he caused.

But in documents released Wednesday, prosecutors say Tsarnaev made remorseless statements to two FBI agents after he was critically wounded in a shootout with police.

Prosecutors argued that they should be allowed to use the statements to challenge the testimony of a nun and death penalty opponent who testified for Tsarnaev during the penalty phase of his trial.

(AP)