The ruling on killing one who orders to be killed

Question:
He says: Honorable Shaykh, may Allah grant you success, if a man says to another, "Kill me," and the other does so and kills him, and there are witnesses to this statement, what is the ruling?

Answer:
The ruling is that he is to be killed, because it is not permissible for him to carry out the statement "kill me"; it is not permissible for him to carry out the verse, so he is the aggressor. But they said that something greater than this was mentioned: they said if he said, "Kill me, or I will kill you." So he killed him because he would not kill him; they say he is to be killed, meaning he has no right to rule for himself the killing of another, so how much less if he said "kill me" and did not say "or I will kill you"? It is not permissible for him to do this.