The state’s case against Adnan Syed hinged on Jay’s credibility; he was their star witness and also, because of his changing statements to police, their chief liability. Naturally, Adnan’s lawyer tried hard to make Jay look untrustworthy at trial. So, how did the jurors make sense of Jay? For that matter, how did the cops make sense of Jay? How are we supposed to make sense of Jay? Our newest podcast, “The Preventionist” is out now. Search for it wherever you get your podcasts.To get full access to this and 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