'The death penalty is not justice,' says Amnesty International. 'It will only compound the violence, and it will not deter others from committing similar crimes in the future.'
Though Massachusetts, where both the crimes and trial took place, does not have the death penalty, the federal charges under which Dzhokhar Tsarnaev was convicted allow for it.
Verdict means 21-year-old defendant is eligible for death penalty after being convicted for April 2013 attack which left three dead and more than 260 injured
Senior Obama officials tell the US Senate: the 'war', in limitless form, will continue for 'at least' another decade - or two