EAU CLAIRE, Wis. (WRN) — A man accused of sexually assaulting children in northwestern Wisconsin will spend the rest of his life in prison.

An Eau Claire County judge on Friday sentenced Robert Kartsensen to 40 years, followed by 20 years extended supervision. That’s tantamount to a life term for the 83-year-old charged with sexually assaulting six young victims in Eau Claire and Barron counties over a period of years dating back to the mid-1990s. Karstensen admitted to the assaults when arrested by Eau Claire police in June of last year.

Karstensen’s neighbor, 55-year-old James Barbey is also charged with multiple counts of child sexual assault.