Playing loose with the facts again I see. Perhaps someone lied to you and you are just repeating it. Perhaps it is a bit more sinister. That is between you, your conscience, and God.
What you ascribe to the pope was in fact the actions of Emperor Charles V. He did not "send out people to kill Luther". He officially declared Luther an outlaw, banning his literature, and requiring his arrest. "We want him to be apprehended and punished as a notorious heretic." It also made it a crime for anyone in Germany to give Luther food or shelter and permitted anyone to kill Luther without legal consequence.
All of this was done for political not religious reasons. Luther had promoted the revolt of numerous German princes and this threatened Charles V and the Hapsburg Dynasty. Many Catholics met their fate for similar threats.
Do you really think the very angry Pope did not pull the strings to this action? This was not a period of separation of church and state..the church WAS the state
I do not see why this would even be disputed the terror of Rome against the reformers is documented in the history books as the inquisition
A draft of the Diet of Worms ( a religious trial ) placed the reason for the order to kill him was religious “We want him to be apprehended and punished as a notorious heretic. It also made it a crime for anyone in Germany to give Luther food or shelter. It permitted anyone to kill Luther without legal consequence.