It is a bogus confession...although it will take a month for the DA to prove that part. The guy is simply a nut. He read alot and knows more about the murder than the typical guy on the street. Thats really it...nothing else. Its an amusing story which we can laugh about in a couple of months and wonder how the public bought his story hook....line....and sinker.
I have a little theory, although I'm not wedded to it.
Supposedly he told his father back in 2001 that he was arrested for the murder of Jonbenet. He also wrote Patsy Ramsey a few months ago that he killed her. He's obviously a pedophile. He's obsessed with the case. Maybe he has a compulsion to kill a child and knows it and is doing this to get himself off the streets. He may well believe he killed her.