Lawyer: No promises to DasseyASSOCUTtD MISSCHICAGO — State attorneys on Tuesday tried to persuade a panel of federal appellate judges a Wisconsin, inmate featured in the Netflix series Making a Murderer made a voluntary confession and was properly convicted.Brendan Dassey was sentenced to life in prison in 2007 in connec -tion with Teresa Halbach’s death two years earlier. Dassey told detectives he helped his unde, Steven Avery, rape and kill Halbach at the Avery family’s Manitowoc County salvage yard. Avery was sentenced to life in prison in a separate trial.A federal magistrate judge overturned Dassey’s conviction in August, ruling investigators took advantage of the then-lb-year-old Dassey’s cognitive disabilities and tricked him into confessing using false promises that he would be all. right. The state Department of Justice has appealed; Dassey remains in prison pending the outcome.Attorneys for both DO} and Dassey presented oral arguments to a three-judge panel at the 7th U.S. Circuit Court of Appeals in Chicago on. Tuesday.DO I Deputy Solicitor GeneralDaiMY