The moment Amaury reached the PeL border there was nothing you could have done to kill him. Koli was going to accept him in PeL until he had made his way to wherever he decided to go. If the rebels' ultimate goal was to execute him, then they planned it terribly.
And he already has someone loyal to him as Judge. All it takes is one stroke of Mattias' pen and Amaury's ban from LN is gone.
