LIVE: Luigi Mangione expected to plead guilty during federal court hearing

Watch live coverage as Luigi Mangione, the man charged with gunning down UnitedHealthcare CEO Brian Thompson on a New York City street two years ago, is expected to plead guilty to stalking charges in Manhattan federal court, according to sources familiar with the matter. For more context and news coverage of the most important stories of our day, click here: https://www.nbcnews.com » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Subscribe to Here's the Scoop podcast: https://www.nbcnews.com/her ...