Boston bomber apologises for fatal marathon attack
A US judge formally sentenced him to death for killing four people and injuring 264 in the bombing and its aftermath.
“I am sorry for the lives I have taken, for the suffering that I have caused you, for the damage I have done, irreparable damage,” Tsarnaev, 21, told a courtroom packed with parents of some of the dead and some of those wounded on April 15, 2013.
