Just finished Chapter 13!
So, character-wise, assuming that everything Luke said, for every question Alex asked, he told the truth, it would seem he's quite the tragic guy. But of course, Mayhew knows how to twist the truth - he's an Elder. So it's possible it's a half-truth, meant to allay Alex's curiosity, much like Alex can only half-promise to work with Mayhew.
As a person, when it comes to 'bad things for the right reasons,' in real life, these things are pretty cut and dry for me. Luke speaks of not wanting to become a monster, and even admits that he's always on the edge. He's hot, and charming, and tragic, which means he's perfect for a lot of people, but I wouldn't say he's for me.
Now as characters, the layers you added in this chapter are wonderful, for Ronan and for Mayhew. Every answer was well-written, and for that, developer, I commend you. It's difficult to write characters like Mayhew, and even more difficult to make them convincing. I genuinely believe that Mayhew believes he's doing what's best, and I can see how he'd get people on his side - how he'd get us, the player on his side. You've definitely moved the needle a little bit on my part, and I am genuinely loving the conflict I'm feeling when I'm playing through his scenes.