DELPHI, Ind. -- (WXIN) -- Investigators released an audio clip of the voice of a suspect in the homicides of two Delphi teenagers.
Capt. Dave Bursten with Indiana State Police played the clip during a Wednesday news conference. He said it came from the cellphone of Liberty German, who had the presence of mind to make the recording. Police said the voice is saying, "Down the hill."
Liberty, 14, and her friend, Abigail Williams, 13, were found murdered last week. Wednesday's news conference at Delphi United Methodist Church included officials from several different agencies, including the FBI. Authorities are offering a $41,000 reward in the case. The money comes from several sources: the FBI, a local business and a local family.
During the news conference. Sgt. Tony Slocum said the search continued for a man seen in a photo. Investigators revealed that the photo also came from Liberty German's phone. They said it's possible the voice in the recording is that of the man in the photo. They also acknowledged that it's possible more than one person may be involved.
Police said they were withholding some information in the case for investigative purposes.
Authorities announced $41,000 in reward money.
Tips are anonymous and people are urged to call the tip line at (844) 459-5786.
Investigators said any information could be useful. If someone has been exhibiting strange behavior in the last week or changed their habits, he said that's noteworthy. Maybe someone suddenly canceled an appointment or has been following the Delphi case much too closely.
Investigators believe the girls met the suspect in a chance encounter on the trail or the person knew they were going to be there. Liberty German's decision to make a recording provided police with their best clues in the case.
"This young lady is a hero, no doubt," Slocum said.