I'm thinking Seward did kill his wife. She's not connected to these girls; who else could have done it?
Yeah, Linden and Holder definitely have a few Scully/Mulder vibes, but Scully and Mulder weren't nearly as emotionally broken as these two. The depth of their affection for each other surprises, but it's gratifying to see. Friendships are what really shine on screen. Usually it's two men, but it's great to see with a man and a woman.