A couple face charges in the Sept. 24 death of their 13-month-old daughter, who authorities say died after being exposed to methadone.

Spencer James Smith, 24, of Clinton is charged with felony child endangerment/death following a months-long investigation.

He was in the Scott County Jail on Tuesday on $1 million bond after being arrested Monday night at the Residential Correctional Facility in Davenport.

An active warrant was issued Tuesday for Precious Bailey, the 25-year-old mother of the baby. Lauran Haldeman, Bettendorf''s public information officer, said anyone with information concerning Bailey’s whereabouts is asked to call the Bettendorf Police Department at 563-344-4023.

Bailey had been posting status updates on her Facebook account Tuesday afternoon until she deactivated it about 4:30 p.m.

An update a month ago stated that Bailey missed her daughter.

Bettendorf Police Chief Phil Redington confirmed the infant's name as Marlee Lynn Tracy.

Redington also said Bailey no longer lives at 2625 Hawthorne Drive, Bettendorf, where she was living with her daughter in September.

He said his department worked with Clinton police and medical officials throughout the investigation.

Medical tests revealed the infant ingested an acute dose of methadone, reports state. Additional medical tests revealed the victim also had been exposed to methamphetamine.

According to court records:

The parents took the infant to Mercy Medical Center in Clinton about 6:30 p.m. Sept. 21. The infant was unresponsive and having trouble breathing.

The child was sent to University Hospitals, Iowa City, where she died three days later from complications from ingesting methadone.

Bailey had been prescribed methadone during substance abuse treatment. The methadone was dispensed in single-dose bottles with a safety lid and tamper-proof seal. The methadone was required to be kept in a lock box.

Bailey had been caring for the baby at 2625 Hawthorne Drive, Bettendorf, on Sept. 21 between 11 a.m. and 3 p.m.

Smith had made plans with Bailey to take the infant to Clinton for a visit.

Bailey told police she mixed a dose of methadone in a bottle of Gatorade during her preparations to go to Clinton. She said her daughter normally drank "juice" like Gatorade but would drink only out of a baby bottle or sippy cup if assisted by an adult.

On Sept. 21 between 1 and 3 p.m., Smith and another person picked up Bailey and the infant from the Hawthorne Drive address.

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At 3:15 p.m., Bailey and the infant were seen by a witness at a Walgreen's in Davenport. The witness told police the infant appeared "lethargic" and could hear the child "struggling to breathe."

Bailey purchased precursors to manufacture methamphetamine at Walgreen's. The associate later told police that Smith also was inside Walgreen's.

At 4:12 p.m. another witness saw Smith, Bailey and the infant as they were checking into a hotel in Clinton. That witness also said the victim appeared "lethargic" and was having trouble breathing.

Both Smith and Bailey told police that Bailey stayed with the child in the hotel room while Smith went out to pick up baby supplies.

Bailey told police she discovered the child unresponsive and saw the child's lips were blue while Smith was away from the hotel room.

Bailey called Smith to report the child's condition. A record of the phone call could not be found during the investigation. Smith and Bailey did not attempt to call 911.

Smith's associate sent him a text message requesting him to pick up additional precursors to make methamphetamine.

Smith and Bailey deprived the infant of health care for at least three hours while the victim was showing signs of being in respiratory distress.