Game Of Thrones Season 6: 10 Ups And 2 Downs From 'Home'
3. I Am Lord Bolton

It's a testament to how big Jon's return is that Ramsay Bolton fatally stabbed his father in the middle of this episode, and it's barely even a talking point. I mean, he killed Roose Bolton. Killed him dead!
Roose hasn't quite been developed as the machiavellian master he could've been, generally coming across as a Tywin-lite, but he's still the Warden of the North, and the only man who can even attempt to keep Ramsay in check. Now that he's been killed, it's going to represent a big shake-up in what happens in the North, and their relationships with the Freys and Lannisters as well. Figuratively and literally, the hounds have been unleashed here.
At the same time, did we really need to see that much of the scene with Walda and the baby? No. We already know how sadistic Ramsay is, and that he was probably going to kill them anyway, but I suppose this at least removes any chance of doubt.