I am deeply troubled by Adolin and his murdering Sadeas. I get it, and part of me cheered. But what implications will this act have in later books? I've always thought he would be a KR, but after this, I'm just not sure. Was he right to do it? He was trying to protect his father, but his need for revenge must be great. He also had the presence of mind to remove all evidence, indicating that he is not willing to be tried for his actions. If he felt they were right, he wouldn't fear judgement.
Also, if he is/will be a surgebinder, how do you reconcile that with his relationship with his sword? He doesn't hear the screams, and speaks lovingly to a dead spren. Does that strike anyone else as odd?
What if he is Odium's champion in the making?
Or will this act, and the guilt he feels later, be what creates the cracks to his soul that allows him to become a surgebinder?
Grrrrrr.