Marathon County Sheriffs say they think the author of an anonymous letter has information about the unsolved murder of a pharmacist.

Fifty-eight-year-old Kenneth Juedes was found shot to death in his home near Unity in August 2006.

The letter is postmarked February 17th, 2007 in St. Paul, Minnesota. The Sheriff's Department says the writer cryptically wrote about the murder.

The letter was analyzed by agents of the FBI National Center for the Analysis of Violent Crime, who believe the letter reflects the author has knowledge of the homicide.

The Department is asking the letter's author for assistance.