The parents of a 4-week-old baby that died from alcohol poisoning have been arrested and charged with murder among multiple other charges, officials confirmed on Tuesday.

The mother, Sydnei Dunn, 24, and the father, Marquis Colvin, 25, were arrested on Thursday after they took their unresponsive baby into the Children’s Healthcare of Atlanta for help. The staff noticed that the child was dead and that the couple’s explanation for what happened did not add up.

“Initially, Dunn stated that she had consumed a large quantity of alcohol the day before and that the child must have gotten alcohol poisoning from her while she was breastfeeding,” the Paulding County sheriff’s office spokesman Sgt. Ashley Henson said in an emailed statement to the Atlanta Journal-Constitution.

“She then indicated that the child’s father put alcohol in the baby’s bottle,” Henson added.

Doctors said that the baby’s blood-alcohol level was more than four times the legal limit for adults, which is around .08.

Dunn and Colvin have both been charged with malice murder, second-degree murder, first-degree cruelty to children and reckless conduct, according to the Paulding County Sheriff’s Office.

Police conducted a search of the couple's basement apartment and found evidence from the crime scene along with a firearm. Colvin faces additional charges for possession of a firearm by a convicted felon and parole violation.

“During the course of the search warrant, detectives located evidence of the crime as well as a firearm,” Henson said. “Colvin, who is a convicted felon, is not allowed to be in close proximity or possess a firearm.”