On January 6, 2002, fashion writer and single mother Christa Worthington was found stabbed to death in her home in a small town on Cape Cod -- her 2-year-old daughter, Ava, was unharmed at her side. We start with a look at the crime that would tip off the most high-profile investigation in Cape Cod's history. Support this podcast with a review --------> http://bit.ly/2xj9fk8 *** Can you help catch a killer? Check out our other series, "A Murder On Orchard Street." Listen and subscribe: http://apple.co/2xuXURv *** "A Killing On the Cape" is a production of ABC Radio and ABC News "20/20." Subscribe to the weekly "20/20" podcast on Apple Podcasts (http://apple.co/2zKPW5c) or wherever you're listening right now. Find more ABC podcasts at http://www.abcnewspodcasts.com