jessica kensky and patrick downes , who lost limbs in the 2013 marathon , today opposed the death penalty as a means of punishment for their attacker , urging others to ` overcome the impulse for vengeance .
this week , after finding tsaernaev guilty on all 30 counts related to the april 15 , 2013 , attack , a jury will decide whether to sentence tsarnaev to death or life in prison without parole .
' the victims are n't the first to speak out against the death penalty in tsarnaev 's high-profile trial .