[UnitedHealth Group CEO Murder Case Suspect Pleads Guilty to Federal Charges] BlockBeats reports that on August 15, Luigi Mangione formally pleaded guilty to the murder of UnitedHealth Insurance CEO Brian Thompson. A federal judge has scheduled Luigi Mangione's sentencing date for December 18. In court that day, Mangione admitted to the federal criminal charges against him, acknowledging that he shot and killed Thompson. This plea agreement will prevent the high-profile case from proceeding to a federal trial. Additionally, the guilty plea may allow Mangione to seek dismissal of New York State murder charges and delay the upcoming state trial. Mangione currently faces both federal and state charges. The state trial for the case is scheduled for September 8. If convicted of second-degree murder, Mangione could face a sentence ranging from 25 years to life imprisonment. (CCTV)