 A Pine Ridge man accused of stabbing his girlfriend changed his plea in federal court on Monday. 35-year-old Christopher Kerbaugh Sr. pleaded guilty to assault with a dangerous weapon. Kerbaugh admits to stabbing his girlfriend in the back and pubic area with a pocket knife in September of 2023. He also admitted to threatening to kill her. He could face up to 10 years in prison and a $250,000 fine. Kerbaugh's sentencing hearing has not been scheduled at this time. Jack Cottle, Kota Territory News.