Aaron Katersky has the latest on accused CEO killer Luigi Mangione, who pleaded not guilty in court to state murder charges as his lawyer raised concerns about a fair trial; Elizabeth Schulze has breaking news about former President Bill Clinton, who is being treated for a fever in the hospital but said to be in "good spirits"; Mola Lenghi reports on the terrifying images showing first responders rescuing skiers who plunged 30 feet into the snow in a chairlift accident near Lake Tahoe; and more on tonight's broadcast of World News Tonight.