I think Koenig uses pathos to describe the one thing she does not want to be the end result of study of the case. I kinda understand why she does this. To show her listeners that she is even more determined to resolve this case, that it fears her not to. That she is willing to go even deeper into this story to make sure that this does not become the reality. Thats how most people are that puts their own time and energy to something, they are going to see it though entail they are satisfied. At the same time this kinda points out that she is emotionally involved in the case. Either if that is a good thing or bad thing, I don't know?

Koenig seems to me to be trying to keep her listeners interested. She could have used another way of explaining Enright's personality and lifestyle but she chooses to use bad language. It also develops Enright's ethos, to give her credibility and to show that she actually has a view on this story worth listening to that could even change the listeners perspective. I lost a little from Koenig's good pathos that I had of her, it seems like she puts this anger into the story that was not even needed.