 Four years ago, authorities examined tissue from the baby's organs that had been preserved since the autopsy and used it to develop a DNA profile. A forensic genealogy lab helped identify the baby's likely parents. The sheriff's office says it recently interviewed the man believed to be the father. He denied any knowledge of the baby. The woman authorities believe to be the baby's mother previously died. The sheriff's office says it's unable to prove beyond a reasonable doubt that a crime was committed, so it's closing the case.