More than a week after the murders, police hold a news conference that offers up new information and new evidence. But information designed to help, only deepens the mystery of what happened, and spooks everyone.To learn more about how HLN protects listener privacy, visit cnn.com/privacy

Down The Hill: The Delphi Murders

Chapter 4: Three Words

Abby and Libby - 2 young girls murdered. Investigators are searching for the killer using their biggest clue: a recording of his voice from one of the victims' phones ordering the girls Down the Hill. Almost three years later, it's a mystery that still haunts the small town of Delphi, Indiana while police say the killer may walk among them.

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Down The Hill: The Delphi Murders