Accused Assassin Luigi Mangione Appears Back in Court

Luigi Mangione appeared in court Monday as a crucial pre-trial hearing went underway. Prosecutors played the surveillance video showing the assassination of United Health Care CEO Brian Thompson outside the Hilton Hotel in Manhattan. Thursday marks the first anniversary of the murder. The defense is asking that the contents of Mangione's backpack, found when he was arrested at a McDonald's in Pennsylvania, to be excluded from the trial.