'Strong person of interest' arrested in killing of UnitedHealthcare CEO

Authorities in Altoona, Pa., announced that they had arrested Luigi Mangione on gun charges at a McDonald's in the killing of UnitedHealthcare CEO Brian Thompson. Police say he showed them the same fake ID he used to check into a hostel in New York. Authorities said he had a gun consistent with the one used in the shooting, a passport and what's being called a manifesto that might offer clues to his motivation. NBC News' Stephanie Gosk reports. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: https://apps.nbcnews.com/mobile Breaking News Alerts: https://link.nbcnews.com/join/5cj/breaking-news-signup?cid=sm_npd_nn_yt_bn-clip_190621 Visit NBCNews.Com: http://nbcnews.to/ReadNBC Find NBC News on Facebook: http://nbcnews.to/LikeNBC Follow NBC News on Twitter: http://nbcnews.to/FollowNBC Follow NBC News on Instagram: http://nbcnews.to/InstaNBC #UnitedHealthecare #Shooting #Pennsylvania