The search for Zahra Baker, the 10-year-old North Carolina girl missing since October 9, took a grim turn Thursday, as a source close to the investigation announced that the girl's remains had been found. (Investigators would only confirm that they’d found “valuable information” in the case.) Baker’s prosthetic leg—which she began wearing five years ago, after losing her leg to bone cancer—had been discovered in a wooded area about 20 miles from her house. Baker’s stepmother, Elisa Baker, was arrested shortly after the girl was reported missing, on unrelated larceny charges, but she later admitted that she’d forged a ransom note. Baker’s biological mother, Emily Dietrich, announced Thursday that she would be traveling to the girl’s hometown to help search for her daughter, despite not having had any contact with Baker since she was a baby.