Rochester, MN (KROC-AM News) - A former Mayo Clinic physician accused of murdering his wife has lost another appeal. The judge had refused a request to throw out a grand jury indictment charging Bowman with first- and second-degree murder. Get our free mobile appAccused of Poisoning His WifeBowman is accused of the poisoning death of 32-year-old Dr. Betty Bowman in August 2023. GoFundMe: Remembering Betty Bowman GoFundMe: Remembering Betty BowmanJudge Previously Found No Prejudice From MisconductLast December, Bowman's defense attorneys filed motions seeking to dismiss the first-degree murder indictment, claiming the state committed prosecutorial misconduct while presenting the case to the grand jury. The ruling notes that Bowman will have the opportunity to challenge the grand jury indictment in any appeal if he is convicted of the charges.