( CNN ) -- The Nevada Supreme Court Friday upheld former football player O.J . Simpson 's convictions for kidnapping with a deadly weapon and other charges in his 2008 Las Vegas armed robbery trial , but ordered a new trial for co-defendant Clarence Stewart . Simpson , 63 , is now serving a 33-year sentence with the possibility of parole after nine years for 10 convictions relating to an armed confrontation over sports memorabilia in a Las Vegas hotel room . Simpson and five other men tried to regain property that Simpson claimed was his . That 2008 Nevada conviction came exactly 13 years after Simpson was acquitted in Los Angeles , California , in the murders of his ex-wife , Nicole Brown Simpson , and her friend Ron Goldman . In his Nevada appeal , Simpson unsuccessfully argued that the trial court erred when prosecutors were allowed to remove two potential jurors who were African-American . Simpson also alleged the trial court improperly restricted him from asking potential jurors about the notorious California murder trial and a subsequent wrongful death civil suit accusing him of causing the two deaths . Simpson also contended the Las Vegas trial court improperly admitted hearsay statements . `` We conclude that all of Simpson 's arguments on appeal are without merit and we therefore affirm the judgment of conviction , '' Nevada 's high court said in its ruling . On September 13 , 2007 , Simpson and five men held two individuals at gunpoint and removed about $ 100,000 worth of trophies and other sports memorabilia from a Las Vegas hotel room . `` The testimony was clear and consistent : Simpson was furious '' at a third individual whom Simpson believed had betrayed him by selling his personal items , the court wrote when addressing the assault and robbery convictions . `` Once the robbery was over and all of the items were removed from the room , Simpson remained in the middle of the room yelling at the victims '' while a conspirator held the victims at gunpoint , the justices wrote . Of the five men who accompanied Simpson to the Vegas hotel room , four pleaded guilty to reduced charges in exchange for their testimony at trial , but Clarence `` C.J . '' Stewart faced a jury verdict alongside Simpson . Stewart argued that he should have received a separate trial . Stewart was also convicted on 10 counts and received an identical 33-year prison sentence as Simpson , but the Nevada Supreme Court agreed with Stewart 's attorneys and ordered a new trial . `` We conclude that the district court did abuse its discretion when it denied the motion to sever ( Stewart 's trial from Simpson 's ) because it prejudiced Stewart by having a substantial and injurious effect on the verdict , and we therefore reverse the judgment of conviction , '' the court wrote .
Nevada Supreme Court finds Simpson 's arguments `` without merit '' A codefendant wins a new trial . Simpson will continue a 33-year prison sentence with a chance for parole after nine years . Justices found Simpson was `` furious '' when committing 2007 robbery over sports memorabilia .