Deborah Roberts sits down with ABC News contributor and crime reporter Pat Lalama to unpack the chilling details of the murder of beloved American University professor, Sue Marcum. Learn how law enforcement finally arrested Jorge Landeros after 12 years on the run. Listen to full episodes, including "The After Show," on the 20/20 Podcast feed. Stream 20/20’s "The Hunt for Mr. Right" on Disney+ and Hulu, under Season 48.
