Christopher Neil Bjerkness faces sentencing Nov. 29 in a felony burglary case after a plea agreement was reached Wednesday in St. Louis County District Court. Known as the "Ball Slasher," the 33-year-old Bjerkness originally pleaded not guilty to breaking into the Chester Creek Academy fitness center in May. Bjerkness has several previous convictions for breaking into facilities to slash exercise balls - an action described as a sexual fetish.