We now know how the baby who was found two weeks ago in a Liverpool dumpster died. The Onondaga County District Attorney says the child was suffocated. The newborn's mother, Nicole DeJaynes, 29, is behind bars, facing a second degree murder charge. Our Iris St. Meran has been following this case and has more from the newsroom.

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LIVERPOOL, N.Y. -- Authorities have been waiting on the cause of death so they could determine how to proceed with this case. They couldn't officially proceed with homicide charges until they knew if the baby was actually born alive.

Last week DeJaynes was charged with second degree murder after she was released from a medical facility without notifying police. Officials believed she was a flight risk.

The District Attorney's office says DeJaynes was staying with friends at the Pearl Street Apartments in Liverpool and gave birth there.

Chief Assistant District Attorney Rick Trunfio says authorities know who the father is and evidence indicates the 29-year-old mother acted alone. He says it's too early to know how the baby was suffocated.

"The problem with a homicide like this is there's no witnesses. Certainly we have to piece together her version of events and how that is consistent or not consistent with the physical evidence and the forensic evidence that the medical examiner's office has given us. Hopefully we can piece that together, but that's what a grand jury and trial is all about," Trunfio said.

The DA's office has six months to present its case to a grand jury.

DeJaynes has a five-year-old child that her mother has been caring for.

DeJaynes is being held at the Onondaga County Justice Center without bail.