WAUKESHA COUNTY, Wis. (CBS 58) -- The Waukesha County Sheriff's Office is asking potential victims of sexual assault to come forward. 

Investigators believe Michael Delanguillette assaulted several children at Kettle Moraine Ranch in Eagle. 

Delanguillette worked at the ranch as a horse trail guide and ranch hand in the mid-1990s to 2008. Deputies say a victim came forward accusing him of sexual assault. Delanguilette has been charged with one count of second-degree sexual assault of a child. 

The victims are believed to have been between the ages of 8 and 13 at the time when they were assaulted, based on Delanguillette's admission, investigators said. 

Anyone with information is asked to call Waukesha County detectives at 262-896-8047. 

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