Defense attorneys for a Minnesota state trooper charged with murder, assault and manslaughter are in Hennepin County District Court Thursday, urging a judge to order prosecutors to turn over more communications involving a use-of-force expert. And charges will not be filed against the St. Paul Police officer who shot and killed Yia Xiong a year ago.  This is an MPR News morning update, hosted by Phil Picardi. Music by Gary Meister.Find more from these stories at MPRnews.org.Governor hasn’t ruled out reassigning state trooper case to attorney generalNo criminal charges against St. Paul officers in the death of Yia XiongRead the latest edition of the AM Update newsletter.Subscribe on Apple Podcasts, Google Podcasts, Spotify, YouTube or RSS.