When a young mother vanishes, her trail goes cold. Until a shocking discovery reveals that history repeats itself. On the Case with Paula Zahn investigates tonight at 10/9c. | Investigation Discovery

Investigators must overturn a shocking decision before they can solve the hauntingly familiar murder of a teenager. Watch all-new “On The Case With Paula Zahn” tonight at 10/9c on ID | Investigation Discovery

This mother's relentless investigation of her daughter's disappearance leads police to a terrifying string of murders. On the Case with Paula Zahn begins tonight at 10/9c. | Investigation Discovery

Paula Zahn gets to the heart of the story. Watch an all new season of ON THE CASE WITH PAULA ZAHN on Investigation Discovery TONIGHT 10/9C | Investigation Discovery