On February 13, 2017, 13-year-old Abigail "Abby" Williams and 14-year-old Liberty "Libby" German disappeared after walking along the Monon High Bridge in Delphi, Indiana. Their bodies were found the next day near the creek bed below the bridge. Police have released audio and video taken by Libby of a man who is believed to be their killer, but the case remains open and unsolved to this day.