ST. PAUL, Minn. – Without much to lose, former Minneapolis police officer Derek Chauvin appealed his murder conviction in the killing of George Floyd to the Minnesota Supreme Court. The appeal was filed by an attorney for Chauvin, who is in a federal prison in Arizona where he’s serving 22-1/2 years. The claim: The judge at Chauvin’s trial should have moved the trial out of Minneapolis to avoid a biased jury in a highly charged case had received saturation news coverage. It’s an argument that failed before the Minnesota Court of Appeals in April. About bias, the appeal noted too that one juror participated in a black civil rights march in Washington, D.C., a few months before Chauvin, a white cop, murdered Floyd, a black man.