I just can't get over how the letter from Cathy to Koob was typewritten. Wouldn't something that intimate be handwritten? Did anyone bother to examine the letter? Was it signed? These are things I wanted to see rather than Gemma fiddling with her stove. And after that doozy of an interrogation story, I don't put it past Koob to have written out what he had desired their relationship to be. Does that he mean he killed her? Not necessarily. Maybe he's still just obsessed enough with her to to insert himself as much as possible into her story. And yeah, May is completely full of shit. It's one thing to not have the evidence to prosecute. It's another to not even pursue the evidence at all.