Who is Luigi Mangione, Charged with Murder of United Healthcare CEO?

Luigi Mangione has been charged with the murder of UnitedHealthcare CEO Brian Thompson. Mangione was arrested on 9th December at a McDonald's in Pennsylvania, about 450 kilometres from New York City, where he shot Thompson. The 26-year-old was in possession of a gun and a document labelled 'motivation and mindset', at the time of his arrest. Mangione's arrest sparked a wave of online attention, with supporters portraying him as an anti-establishment figure. His X handle now has around 2 lakh followers, while the hashtag | FreeLuigi trends on the platform. Additionally, a document that seems to be his manifesto is circulating online. Notably, it quotes revolutionaries like Gandhi, Mandela and Martin Luther King Jr.