Dateline NBC

Josh Mankiewicz reports on the disappearance of a retired art collector and Palm Springs socialite, one of the longest and most expensive missing-persons investigations in California history. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com [https://pcm.adswizz.com] for information about our collection and use of personal data for advertising.

Days before Robert Roberson's scheduled execution, his lawyer scrambles to save his life. The Texas Court of Criminal Appeals weighs in. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com [https://pcm.adswizz.com] for information about our collection and use of personal data for advertising.

As Robert Roberson’s execution nears, his attorney uncovers critical evidence and unlikely new allies, including Texas lawmakers and the detective who helped put Robert on death row.  Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com [https://pcm.adswizz.com] for information about our collection and use of personal data for advertising.

Attorney Gretchen Sween takes on Robert's case and pieces together Nikki’s overlooked medical history.  She tracks down a witness from his trial who has new information. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com [https://pcm.adswizz.com] for information about our collection and use of personal data for advertising.

When 2-year-old Nikki is rushed to a Texas hospital and doesn’t survive, her father, Robert Roberson, is accused of causing her death. Prosecutors say he shook and beat her in a case of "shaken baby syndrome." Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com [https://pcm.adswizz.com] for information about our collection and use of personal data for advertising.