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Sarah Sue Mangus, 29, and Jamie Mangus, 34, have pleaded not guilty to an indictment accusing each of murder by abuse and manslaughter.

(Multnomah County Sheriff's Office)

A newborn girl lived only 12 hours after her drug-addicted mother delivered her in a North Portland apartment in April, used a clip from a bag of chips to cut the umbilical cord and later a metal hair clip to hold the baby's bellybutton in place, court records show.

The parents never went to a hospital for care that day, the records indicate.

Instead, the mother, Sarah Sue Mangus, 29, and the father, Jamie Mangus, 34, walked around the St. Johns neighborhood with the baby "killing time,'' a search warrant affidavit said.

The couple stopped by a Plaid Pantry, bought donuts and drinks at a 7-Eleven, a baby bottle at a Dollar Store and spent hours at a Safeway before getting a ride from Sarah Mangus' mother, they told authorities.

The ride wasn't to a hospital, but to a friend's house, the couple told police, according to the affidavit.

By evening, the couple stepped off a bus on North Lombard Street and noticed the newborn had no pulse. They took the baby to an uncle's apartment on North Newman Street. The mother said she put her baby's head under water, and others at the apartment attempted to revive the infant and called 911. Portland firefighters also attempted to do CPR on the baby but were unsuccessful.

Sarah Mangus and Jamie Mangus pleaded not guilty Monday to allegations of murder by abuse and first-degree manslaughter.

Their newborn daughter, Krystal Mangus, died from methamphetamine intoxication and neonatal pneumonia, an autopsy found.

The child was Sarah Mangus' fifth, according to court records. The others were removed from her by the state Department of Human Services because of their parents' drug use, particularly methamphetamine and prescription drug abuse, the father told authorities, according to the affidavit.

Though Jamie Mangus said in a divorce petition last year that the baby wasn't his, the affidavit refers to him as one of the parents of the girl.

Sarah Mangus told police that she had given birth to the baby in an apartment on North Swift Way at 4:29 a.m. April 12, two days after her water broke while riding a MAX train. Jamie Mangus wrapped the delivered placenta in a sleeping bag and left it on the floor of the kitchen, according to the affidavit. Police later found drug paraphernalia in the apartment.

Two Safeway employees interviewed by police said they had noticed the couple with a young baby the morning of April 12 in the deli area of the grocery.

One employee said the mother looked "really high on something'' and her baby was a purplish, blue color, its stomach bleeding. The employee offered to get some Band-Aids for the baby. When she returned, the employee suggested the couple take the baby to the hospital and she offered to call 911. The mother refused the help, the employee told police, the affidavit said.

Records show that Sarah Mangus had gone to the Pregnancy Resource Center in Portland in August, and learned she was pregnant with an April 14 due date. Follow-up appointments were set for September, October and November, but the she didn't show up for them. The center tried to reach her by phone in October and November and left messages, but no contact was made, the affidavit said.

On April 12, Sarah Mangus estimated that the baby only drank about three-quarters of an ounce of baby formula that day.

Police took the couple to a hospital to have blood drawn from each parent. As they waited together, they talked about possible causes of the baby's death, the affidavit said.

At one point, Sarah Mangus said in a soft voice, "Could be because I was using meth.''

The Manguses are being held without bail.

--Maxine Bernstein