Kim Barker, a Pulitzer Prize-winning investigative reporter for The New York Times, revisits an unsolved murder that took place while she was in high school in Laramie, Wyoming, nearly 40 years ago. She confronts the conflicting stories people have told themselves about the crime because of an unexpected development: the arrest of a former Laramie police officer accused in the murder. To get full access to this show, and to other Serial Productions and New York Times podcasts on Apple Podcasts and Spotify, subscribe at nytimes.com/podcasts.   To find out about new shows from Serial Productions, and get a look behind the scenes, sign up for our newsletter at nytimes.com/serialnewsletter.    Have a story pitch, a tip, or feedback on our shows? Email us at serialshows@nytimes.com