A Prior Lake man charged in the fatal stabbing of a Stillwater teenager during a 2022 tubing trip in western Wisconsin took the witness stand Tuesday. Nicolae Miu testified he acted in self-defense when he killed 17-year-old Isaac Schuman and injured four others. And Xcel Energy customers could soon pay different rates for the electricity they use, depending on the time of day.Find more from these stories at MPRnews.org.Xcel Energy hopes charging more for electricity during peak hours will encourage customers to shift energy useRead the latest edition of the AM Update newsletter.Subscribe on Apple Podcasts, Google Podcasts, Spotify, YouTube or RSS.