i am glad to see that i am not the only person who is a little uneasy about this. for some reason, i just don't think he did it. i think he is covering for someone else or something like that or he is a wack job who just wants the fame for it. if he did do it, i am exstatic to see him behind bars and i really hope that is the case. but i get the feeling that it really was her parents.
When I look at Karr, I don't think he committed the crime. He seems like the type who has failed at everything he has every tried to achieve, has an obsession with criminal cases involving little girls, and found this to be the perfect opportunity to "be somebody". For the average person, admitting you committed a crime which you had no part in makes no sense. However, for someone suffering from psychological issues (now I'm no psychologist, but I think he has plenty) it might be an way to be recognized or to cry out for help. Who knows though... what it all boils down to is DNA (hopefully the investigators didn't botch that up!)