It is their last chance, one which they denied their victims. Jesus died to free us all from sin in general, not just from sins humans approve of for forgiveness. Vengeance is His and so is grace and mercy.
Prayers for all the victims’ loved ones. May they have peace knowing he can never hurt anyone ever again.
Jesus never said we were NOT to be held accountable to government for our crimes. Just that if we repented truly in our hearts He would forgive us.