Gillian flat-out accuses Nucky of killing her son, and he flat-out denies it. She starts to get emotional when it comes to the “promises” Nucky made, to Jimmy and to her, which is when I get on her side a little bit. What a betrayal, to have the man who promised to protect your little boy turn out to be his killer. Of course, in between those two things was the part where your little boy tried to murder his protector, at your Lady Macbeth-ian urging. So: a tie, I guess?