The man who falsely confessed nearly four years ago to murdering JonBenet Ramsey is under investigation for cyberstalking a woman he met when he was a teacher and she was 9 years old, a Seattle TV station reports.

KING 5 News is reporting that Samantha Spiegel, 19, told Inside Edition that she first met John Mark Karr in San Francisco 10 years ago when he taught there as a substitute teacher.

They reconnected over video chat and e-mail. When she tried to break off their relationship, she claimed that Karr threatened to kill her, according to the TV station’s Web site.

San Francisco police told KING 5 News that they are investigating Karr.

Karr was arrested in August 2006 in Thailand after confessing to killing Ramsey, the 6-year-old beauty queen, in her Boulder home on Dec. 26, 1996. A DNA analysis 12 days later revealed Karr was lying about the murder.

KING 5 News said Karr may be living in Seattle and may have changed his appearance to look like a woman. He even stayed at a shelter for battered women, the report states.

The station cites court documents showing that Karr changed his name to Alexis Valoran Reich in Washington’s King County district court in 2008.

Spiegel said Karr, against whom she has a restraining order, became a woman in to get closer to young girls, the TV station reported.

“That’s part of the reason he wants to change his appearance,” Spiegel said.

The station claimed that Karr is also accused of trying to form a cult of JonBenet look-alikes, and that he would call these young girls “The Immaculates.”