Should be interesting for the DA to separate fact from fiction in Karr's mind.
It seems like they are just operating on the assumption that no one else knows all those details - when there are books, documents, millions of discussions, all at the fingertips of someone like Karr who would want to make a name for himself in his own sick way.
The things we've heard would be very easy to impeach in court. I'm just wondering "why bother?" If he lies about such blatantly false info, the only thing that could be true would be a DNA match.