The Janesville police department is looking for a man who is responsible for a number of rapes in the Janesville area for the past eight years.
We're told the last time a sexual assault was committed was Wednesday.
Police say the serial rapist began assaulting his victims in August of 1998. He is described as a man in his 30's with light colored hair and blue eyes, 5'9" to 6' with a muscular, stocky build.
Anyone with information is asked to call the Stop the Rapes Tipline at 608-755-3146.