Denver - The Boulder County District Attorney's office will not file charges against Karr in connection with the Ramsey case.
Two sources have confirmed that the DNA sample taken from John Mark Karr is not a match with the foreign DNA found on JonBenet Ramsey's body when she was murdered in 1996.
Samples of Karr's saliva and hair were taken in Boulder, CO after his arrival on Thursday. Those samples were tested over the weekend inside the Denver Police Department's Crime lab.
JonBenet was covered in a blanket when her body was found. Foreign hair fibers were found on that blanket and they did not match any of the Ramsey family or approximately 100 people.
Karr recently confessed to certain elements of the crime that were unknown to the general public.
Karr was taken into custody in Bangkok, Thailand earlier this month in connection with the murder. He arrived in Boulder, CO Thursday afternoon on a probable cause warrant for charges of first-degree murder, kidnapping and sexual assault on a child.
Karr said at a press conference in Thailand he was with JonBenet when she died.
JonBenet Ramsey was 6-years-old when she was murdered on Christmas night in 1996.
After JonBenet's death her father John Ramsey ran unsuccessfully for the Michigan House in 2004, finishing second among six candidates vying for the Republican nomination.
Mother, Patsy Ramsey died June 24 following a long battle with ovarian cancer. She was 49.
Karr is scheduled to be in court Monday afternoon for an advisement hearing.
Charges related to the JonBenet case are not being filed in Colorado but California may file. Boulder, CO could file different charges for Karr however.
Stay with WZZM 13 both on-air and online for updates to this story.
--- KUSA contributed to this story.
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