4. Red Flags

Chris Smith's family is convinced something terrible has happened to him, so they file a missing person report. Police get involved -- but the investigation seems to hit a dead end. "Cutthroat Inc." is produced by ABC's 20/20 and ABC Audio, makers of "The Dropout," "Truth and Lies: Jeffrey Epstein," "Have You Seen This Man?," "A Killing On the Cape," the daily ABC News podcast "Start Here," and more: http://www.abcaudio.com/podcasts