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Sarah and Jamie Mangus have been charged with murder by abuse in the death of an infant, Krystal Mangus.

(Multnomah County Sheriff's Office)

A newborn girl found dead in a North Portland apartment in April died of methamphetamine intoxication and neonatal pneumonia, an autopsy showed.

The methamphatamine likely passed through the mother's placenta to the girl, state medical examiner Dr. Karen Gunson said Monday.

Sarah Mangus, 29, and Jamie Mangus, 34, were arrested last Friday in the April 12 death of Krystal Mangus. They also face first-degree manslaughter allegations in the case.

They were indicted by a Multnomah County grand jury earlier this month. The indictment accuses them of causing the baby's death "by neglect and maltreatment."

Police say they were called to a residence in the 8000 block of North Newman Avenue on a report that the baby wasn't breathing. Officers found the child was dead and called homicide detectives.



Investigators determined that the girl had been born in the apartment but hadn't received medical attention, police said.

Jamie Mangus filed for divorce in October and in his petition said the couple had three children and his wife was expecting a fourth child around March of this year.

At that time, he wrote that two of the children were in foster care and a third was with the mother at a treatment center for drug addiction and alcoholism. He said the child on the way was not his.

The Magnuses are being held without bail on the murder by abuse charge.

-- The Oregonian