In Dale Robinson's preliminary hearing, the prosecution's key witness testified Robinson confessed to kidnapping and murdering Deanna Zuleger Scantlin.
The woman also said a friend of Robinson's admitted he helped commit the crimes. But the man has not been charged, so his name is not being released.
The District Attorney said they don't have enough evidence to charge the man right now, and the investigation is ongoing.
The Langlade County Sheriff's Department said they have been interviewing the man since the beginning of the investigation, but he has an alibi for the time of the murder.
The D.A. said much of their evidence is still being processed at the state crime lab, and once they have it all back they may press charges against the accused accomplice.