Deborah Roberts sits down with the 20/20 workforce to unpack the surprising homicide of Heidi Firkus. We reveal secret recordings from the killer’s spouse that helped put him behind bars. Plus, hear a latest replace within the case from the most recent listening to. Could the responsible verdict be overturned? Listen to full episodes, together with “Stranger in the House,” on the 20/20 Podcast feed. Stream 20/20 full episodes on Disney+ and Hulu below Season 48, Episode 22.
