The man accused of fatally shooting the CEO of UnitedHealthcare pleaded not guilty on Monday to state murder and terror charges while his attorney complained that statements coming from New York's mayor would make it tough to receive a fair trial. Luigi Mangione, 26, was shackled and seated in a Manhattan court when he leaned over to a microphone to enter his plea. The Manhattan district attorney formally charged him last week with multiple counts of murder, including murder as an act of terrorism, in a state case that will run parallel to his federal prosecution. MORE: https://www.wthr.com/article/news/nation-world/luigi-mangione-nyc-arraignment-unitedhealthcare-ceo-death/507-57c7affa-29a7-46ef-8a4c-11822d1f6075