Somehow I am not surprised. But I have to wonder why his lawyer was so eager to suppress the DNA swab taken in Thailand.
Because that's what lawyers do - try to suppress evidence already gathered and to prevent any from being gathered. It's their yob, mon.
"But I have to wonder why his lawyer was so eager to suppress the DNA swab taken in Thailand."
Perhaps the reason Karr knew so much, and had numerous conversations with Mrs. Ramsey was because he was getting the information from the real killer.
He said he was 'with her when she died', and he meant he had become familiarized with the scene over the years enough that he 'felt' like he was there.
Maybe the DNA swab taken in Thailand wasn't really his. Maybe he got it from the real killer. Or maybe he had (sorry for the mental picture here) intimate relations with the real killer and was worried that would show up and convict him (if his plan was to get back to the US for sex change surgery).
My first thoughts (when Jon Benet died) were that the older boy did it.
All of momma's time and money spent on Jon Benet.
Momma knew who did it but couldn't let her son go to jail.
So she hoped someone else would be blamed or the case go unsolved.
If some of Mr. Ramsey's business partners in Thailand had the 'goods' on Mr. Ramsey, they could have used the older son as part of their plan.
Maybe Mrs. Ramsey's conversations with Karr were attempts to keep the 'family secret' a secret.
Anyway, these are just some of my ideas, food for thought, and have no more credence than anything else.