It's a major development in the unsolved double murder case involving two Indiana teens. According to reports, an arrest has been made in connection with the Delphi murders case. In February 2017, the bodies of 14-year-old Libby German and her best friend, 13-year-old Abby Williams, were found near an old railway line outside of Delphi. Cops say German recorded the killer's voice and took a picture of the killer approaching them on a hiking trail.