The Brief Luigi Mangione appeared in court Tuesday for what could be his final appearance before his high-profile New York murder trial starts. Mangione's lawyers are seeking permission to broadcast the upcoming state trial live and without restrictions on who covers the trial. Luigi Mangione appeared in a New York City courtroom Tuesday in what could be his final appearance before his high-profile New York murder trial gets underway. Jury selection in Mangione's state trial for the killing of UnitedHealthcare CEO Brian Thompson was set for Sept. 8. He faces the possibility of life in prison if convicted in the state murder case.