You know, it's curious. You two were best friends in your childhood until Luis escaped without saying anything, leaving you behind in the village, with Los Iluminados. You became Saddler's lapdog, meaning you are his personal assassin now.

Well, here you are. Holding a blade against Luis' neck, after he returned to the village.

According to Saddler, some guy--scientist or something--was going to join the cause. You didn't expect him to be that guy.