Abigail Williams, 13, and Liberty German, 14, were reported missing February 13, 2017. Their families say the teenagers, who they describe as “inseparable,” had been hiking together in a wooded area near their hometown of Delphi, Indiana.

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Following a search by community members and the police, the girls’ bodies were found the next day near the end of a public trail. Their killer remains at large.

Crucial evidence in the girls’ deaths was recovered from Liberty’s smartphone. The publicly released clues include a photo of an as-of-yet unidentified man on the trail and a brief audio recording of a man’s voice that authorities say was ordering the girls “Down the hill.”

“We have a murderer walking around,” says Liberty’s grandfather, Mike Patty. “He took two innocent lives well before their time.”

Watch a recap of news coverage of the events in the video above, then tune in Wednesday as Dr. Phil talks with the teenagers’ families and police.

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Anyone with information that might assist police in their investigation into the murders of Abigail Williams and Liberty German is asked to call the Delphi Tipline at (844) 459-5786.

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