I don`t know. We know thw queen killed her father and Graham and she regretted both deaths so i am not sure that the fact that Rumpel regrets the death proves anything. Anyways that is not how i read that scene with his son where he says the mother is dead. I read hesitation there from Rumpel as if he was hiding something. That was the scene that made me wonder if he killed his wife. Like maybe he found out she was with someone else and killed her or killed her for leaving him and that leaves the posssibility that Bae is not really Rumpel`s son. We are going to get more information in The Return though it may not be about the back story. We will see.
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