Investigators walked into a mystery that would turn their world upside down… Watch tonight at 9/8c on a 2-hour Dateline Weekend Mystery on NBC. | Dateline NBC

Tonight on a new Dateline, the latest chapter in this hair-raising tale, featuring new evidence, explosive testimony and the prosecution's new star witness. Watch at 9/8c on NBC. | Dateline NBC

Everyone would be in shock when the truth about the killings at the Quitman house came out... Join us for a Dateline Weekend Mystery at 10/9c tonight on NBC. | Dateline NBC