BLOOMINGTON, Ind. -- A videotaped confession from one of three suspects in the 2000 disappearance of Indiana University student Jill Behrman is what led investigators to conduct searches of a Monroe County creek, according to sources close to the probe.

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Sources: Confession Led To Creek Search For Behrman

The sources, who spoke on condition of anonymity, said Wendy Owings, 28, told authorities she and two other people were in a truck that struck Behrman (pictured, left) while she was riding a bike, RTV6's Ben Morriston reported.

Owings, who is being held in the Monroe County Jail on charges unrelated to the case, told investigators they wrapped Behrman in plastic, put her in the truck and drove to Salt Creek, the sources said.

Owings allegedly said that at the creek, she and the other two people -- Alisha Sowders, 21, and Uriah Clouse -- saw that Behrman was still alive. Clouse stabbed Behrman, and then told the other women to stab her, the sources said.

Owings said Behrman was then dumped into the creek, according to the sources.

Clouse -- who already has been publicly identified as a suspect -- is being held in the Brown County Jail on charges unrelated to the Behrman case.

Sowders is being held at the Monroe County jail on charges unrelated to the case.

No one has been charged in Behrman's disappearance.

Behrman was 19 when she was last seen in May 2000. Investigators already have publicly said they believe she was hit by a vehicle while she was riding her bike.

Investigators also have said publicly that they believe someone took her to Salt Creek, where they believe she was killed and her body dumped.

Authorities searched the creek a number of times in 2002, including in September when investigators drained the waterway.

They said they found evidence in the case during the searches, but her body hasn't been located.

Authorities have refused to reveal what they found, but sources told RTV6 the items included plastic, a large folding knife, and at least one bungee cord.

The sources didn't say when the confession occurred.

Owings' attorney, Stuart Baggerly, said he has been in touch with authorities about the case since March.

"It wasn't too long after that that some of the leads started to come together," Baggerly said.

Investigators turned the case over to prosecutors in December. Behrman's father, Eric Behrman, said Thursday a current lack of charges in the case is "inexcusable."

"I didn't think it would take this long, because ... of the situation we were in with some of the suspects," Eric Behrman said. "It's just not understandable."

Eric Behrman said he would meet next week with Monroe County Prosecutor Carl Salzmann to discuss his concerns.