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. All eight episodes of "The Coldest Case in Laramie," a new show from Serial Productions and The New York Times, are available on Thursday, February 23rd wherever you get your podcasts.

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A Times investigative reporter, Kim Barker, revisits the murder of Shelli Wiley — a long-unsolved case from Kim’s time in high school. She reaches out to Shelli’s family to understand why the police arrested a man named Fred Lamb for Shelli’s murder in 2016, and why prosecutors abruptly dropped the charges against him.

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Kim talks to Shelli’s former roommate, who connects Kim with a man who was at the crime scene and has troubling memories about Fred Lamb and the police.

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.

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Have a story pitch, a tip, or feedback on our shows? Email us at serialshows@nytimes.com