221686P.pdf   06/14/2023  United States  v.  Kieffer Simmons
   U.S. Court of Appeals Case No:  22-1686
                          and No:  22-2179
   U.S. District Court for the Southern District of Iowa - Central   
   [PUBLISHED] [Kobes, Author, with Grasz and Melloy, Circuit Judges] 
   Criminal case - Criminal law. District courts lack authority to compel the 
   government to request immunity for a defense witness; nor did the court 
   have authority to grant immunity on defendant's request; the district 
   court did not err in finding that a letter defendant asked the court to 
   admit in lieu of the defense witness's testimony was inadmissible hearsay; 
   the district court did not err in denying defendant Simmons's request for 
   a multiple-conspiracies instruction; the evidence was sufficient to 
   sustain defendant Hambrick's conspiracy conviction; it was not plain error 
   to admit testimony from two witnesses as the evidence fully supported the 
   conviction without the challenged testimony.