Three years into their investigation, police arrest and charge Christopher McCowen for the murder of Christa Worthington, but the arrest of a black man in the murder of a wealthy white woman would immediately ignite controversy. 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 *** ** Subscribe to "Start Here," the new daily podcast from ABC News, available on Apple Podcasts (https://apple.co/2pvq8Ws), Google Podcasts (http://bit.ly/2JZSK70), or your favorite podcast app! "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