Ugh.

From the PI.com:

According to charging documents, staff at Swedish Medical Center was treating Josepha R. Munoz's newborn for a methadone addiction the girl was born with on Feb. 18 when nurses at the Seattle hospital found the child had stopped breathing. After reviving the girl, toxicologists determined the child had been poisoned with methadone, a synthetic drug used to treat heroin addiction.

Described to the court as a methadone and cocaine addict, Munoz had been alone with the child shortly before the girl stopped breathing, according to charging documents. Prosecutors claim Munoz -- for reasons unexplained in charging documents -- slipped the infant methadone during a visit.