After a five-day manhunt, authorities have arrested and charged a man with the murder of UnitedHealthcare CEO Brian Thompson. Today on “Post Reports,” we bring you the latest in the case — and a look at why some on the internet cheered the killing.Read more:Authorities have charged 26-year-old Luigi Magione with murder in the shooting of Brian Thompson, the UnitedHealthcare chief executive who was killed in New York City last week. New York police say Mangione killed Thompson, 50, with a fatal shot to his torso. According to a complaint made public Tuesday, police say Mangione is the person who killed Thompson based on evidence that includes “written admissions about the crime” as well as surveillance footage.Today on “Post Reports,” health reporter Dan Diamond takes host Martine Powers through the multiday search for Mangione and the charges he faces. Dan also breaks down the reputation of UnitedHealthcare, and explains why so many on social media celebrated the health-care executive’s death. Today’s show was produced by Rennie Svirnovskiy with help from Sabby Robinson and Ariel Plotnick. It was edited by Reena Flores with help from Monica Campbell, and mixed by Justin Gerrish. Thanks also to Stephen Smith. Subscribe to The Washington Post here.