If there is a word that could be substituted in place of the word "killing" in the following text in such a way that the meaning of the text is still the same while writing the whole sentence again, then please write the subside word instead of the original. Once again, the word that you should change is "killing", but only if doing that doesn't change the original meaning. Do NOT change other words. Here is the text:
"I just want a lifelike NPC so that I can see how it reacts to me killing all of his family or close friends."