You know, 25yrs, that was an interesting study you cited. When our S was very small, H and I were talking abou this very thing, how a child could be convinced of something that didn't happen. I made something up, like a blue dog that had walked through the living room, and had that child convinced that he had seen it himself, and remembered it. We didn't have any dog, much less a blue one.
But, anyway child molestation is such a serious thing, I hope cj, he is getting help so he can stop this behavior, or honestly I hope if he does it ever again, he will be put in a place where he will never do it again.