Diane Fowler

However, there is just one point left that I have difficulty understanding. That's what Diane Fowler says before Red takes her down. OK she was the mole who provided the plans for the base but it's her words I don't understand. "I know the truth Red! I know what happened that night, what happened to your family!" If she wants to talk about the night of the fire, how can she know the events? She was not present. The only people who really know are: The real Reddington (but he is dead), Katarina and Ilya, the two henchmen we never saw again and Masha from whom this memory was erased. So what did Diane Fowler mean. What sources did she have?