I don’t recall Katie denying that she said, “I know.” I was actually anticipating that question being asked during one of her proffers, and I’m almost certain it wasn’t. I think the reason it wasn’t asked is that Katie was clearly not cooperating during those proffers and was lying about her involvement. As a result, the investigators (I believe it was Sara Dugan, Sanford, and another guy) never found their rhythm and were completely thrown off their game and not asking that question is a major missed opportunity. Objectively speaking, those proffers were very poorly executed by the team. That was my immediate critique after the proffers were made public. If you recall, the process seemed highly disorganized; the investigators were talking over each other, asking rapid-fire questions, and had an aggressive tone. As a result, Katie seemed overwhelmed and became very defensive and shut down. The proffers had the exact opposite effect of what everyone expected. Remember how everyone thought Katie’s proffers, before they were made public, would be the end of Wendi? Everyone assumed Katie would implicate Wendi, but she did nothing of the sort. To this day, Katie is still lying about the details in an effort to minimize her involvement – that seems very clear.