Aaron Katersky reports on the FBI’s release of chilling images and video of an "armed individual" wearing a mask at the doorstep of Nancy Guthrie's home before she was taken; Mary Bruce has details on the newly discovered document in the Jeffrey Epstein files that reveals a Palm Beach police chief informed the FBI that Donald Trump once told him "everyone" knew about Epstein's behavior; on day 4 of the Milan Cortina Winter Olympics, James Longman has the latest on the dramatic performances from Team USA, and Maggie Rulli sits down with the family of U.S. Olympic moguls skier Jaelin Kauf; and more on tonight’s broadcast of World News Tonight with David Muir. 00:00 Intro 02:15 FBI releases images of armed, masked figure recovered from Nancy Guthrie’s nest cam 09:23 New questions over what Trump knew of Epstein's criminal behavior and when 13:15 DHS officials grilled on Capitol Hill over fatal shootings of Renee Good and Alex Pretti 14:52 Dramatic performances on day 4 of Milan Cortina ...