"This case is not closed," said District Attorney Mary Lacy, who planned to further explain her decision at a news conference Tuesday.

The case has never been closed, not since JonBenet's father found her body in the basement of their Boulder home on the day after Christmas 1996. For years, suspicion has focused on either an intruder or the girl's parents, John and Patsy Ramsey.

Karr, a 41-year-old schoolteacher fascinated with JonBenet and Polly Klaas, a murdered California girl, said after his arrest in Thailand earlier this month that he was with JonBenet at the time of her slaying, which he called an accident.

But Lacy said DNA tests and investigators did not put Karr at the crime scene. Prosecutors suggested in court papers that he was just a man with a twisted obsession who confessed to a crime he didn't commit.

Karr was being held at the Boulder jail until he can be sent to Sonoma County, Calif., to face misdemeanor child pornography charges dating to 2001. An extradition hearing was scheduled for Tuesday afternoon.

Karr was never formally charged in the slaying. In court papers, Lacy defended the decision to arrest him and bring him back to the United States for further investigation, saying he might have otherwise fled and may have been targeting children in Thailand.

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http://news.yahoo.com/s/ap/20060829/ap_on_re_us/jonbenet_ramsey_435