By Nathan Rott April 04, 2018 20180404_atc_questions_being_raised_on_how_shooter_got_into_youtubes_building.mp3 Listen • 3:46 20180404_atc_questions_being_raised_on_how_shooter_got_into_youtubes_building.mp3 Copyright 2018 NPR. To see more, visit http://www.npr.org/ .
