A North Carolina woman has been arrested nearly 50 years after a newborn baby girl was found dead inside a trash bag at a landfill, according to authorities who announced that they have now solved the decades-old cold case. The discovery of the infant's body at a Columbus County landfill in 1979 led persistent investigators to identify the baby's mother as Cathy McKee, the Columbus County Sheriff's Office said in a Wednesday, February 25, news release.