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A new charge has been filed against Dea Millergberg, the North Ogden woman previously named a "person of interest" in the death of 16-year-old Alexis Rasmussen.

On Tuesday, Millerberg, 38, was charged in 2nd District Court with one count of endangerment of a child or vulnerable adult, a third degree felony.

Charging documents state that on or about Oct. 4, Millerberg knowingly or intentionally caused or permitted a child or vulnerable adult to be exposed to, inhale, ingest or have contact with a controlled substance, chemical substance, or drug paraphernalia.

Weber County Attorney Dee Smith said Tuesday he could not comment on specifics of the charge, but did say it was separate from Millerberg's previous charge of prescription fraud.

Millerberg's first court appearance on the new charge is set for Wednesday morning. Millerberg remains in the Weber County jail in lieu of $10,000 bail.

Rasmussen was baby-sitting for Millerberg and her husband, Eric, the night of Sept. 10, when she disappeared, North Ogden police have said.

After the girl's disappearance, the Millerbergs were each arrested on unrelated charges. Eric Millerberg was arrested Oct. 3 for violating his probation. Dea Millerberg was charged Oct. 7 with prescription fraud for alleged doctor shopping.

Smith has called the Millerbergs "persons of interest" in connection with the teens' death.

On Oct. 18, the girl's body was found near the Weber River, within two miles of I-84, according to Smith. Police have said they were directed to the location by a confidential source.

Smith has said that the girl died in a house on Sept. 11 or shortly thereafter — not from natural causes — and that her body was then transported to where it was buried near Interstate 84 in Morgan County.

Smith has called the Millerbergs "persons of interest" in connection with the teens' death.

Autopsy results for the girl are pending.

According to the search warrants filed with the court and obtained by the Standard-Examiner before they were sealed at the request of prosecutors, the teen was paid in drugs for baby-sitting for the Millerbergs.

The search warrants also state that two people associated with Eric Millerberg said he asked for help in getting rid of something on Sept. 10, and told them "to bring a car and don't ask any questions."

One of the persons was quoted telling the police, "I can't believe he killed a little girl."