It was the case that puzzled investigators for years - until a grisly discovery in the desert. Deborah Roberts chats with Matt Gutman about the case of a California couple and their two children who seemed to vanish out of thin air. Find “The After Show,” on the 20/20 Podcast feed and on YouTube. Stream 20/20 “What Happened to the McStays?” on Disney+ and Hulu, under S48, E2. #truecrime #truecrimepodcast #truecrimenews #investigation