Simply Diabolical

In Massachusetts, a jury is deliberating the fate of Lindsay Clancy, a mother who says she was suffering from postpartum psychosis when she killed her three children. After California fire captain Rebecca Marodi was stabbed to death by her wife, Yolanda, investigators uncovered Yolanda's troubling past. In Dateline Round Up, there's a verdict in the murder trial of Duane "Keefe D" Davis, accused of orchestrating the 1996 Las Vegas shooting that killed rap legend Tupac Shakur. Courtroom surprise in the case of singer D4vd, accused of murdering 14-year-old Celeste Rivas Hernandez. And updates in the case of Bryan Kohberger, the man convicted of killing four University of Idaho students. Plus, expert breaks down the extradition process.This episode discusses suicide. If you or someone you know is in crisis, call the Suicide & Crisis Lifeline at 988 or visit 988lifeline.org for more resources.Listen to season 5 of the Dateline: Missing in America podcast: https://swap.fm/l/miafdlw. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com.  Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In part two of this special edition of Talking Dateline, NBC News’ Ellison Barber, host of the Netflix podcast “Allegedly," sits down with Josh Mankiewicz at Caesars Palace in Las Vegas, for CrimeCon 2026. Josh tells Ellison what it’s like interviewing families who have gone through the unimaginable and how some have turned their pain into purpose. He also talks about a common thread of stalking in some of his recent episodes, and how the legal system could help protect victims before it’s too late. Plus, he takes questions from the audience.  Have a question for Talking Dateline? Send us a DM @DatelineNBC or leave a voicemail at (212) 413-5252. Your question could be featured in an upcoming episode. Links to Dateline episodes mentioned in this session: “Haunting” about the murders of Tom Hunter and Shirlee Sherman: https://swap.fm/l/dl_haunting “Complicated” about the murders of Tori Vienneau and her 10-month-old baby, Dean: https://swap.fm/l/dl_complicated Josh catches up with Tori’s mother, Danya Heroz, on “After the Verdict, available to Dateline Premium subscribers: https://dateline.supportingcast.fm/listen/dateline-nbc-premium/after-the-verdict-complicated “Breaking Point” about the murder of FedEx mom, Morgan Fox: https://swap.fm/l/dl_breakingpoint “The Phantom” about the murder of Kristil Krug: https://swap.fm/l/dl_thephantom Kristil’s cousin, former prosecutor Rebecca Ivanoff, talks about stalking, coercive control, and the fight for safety: https://www.nbcnews.com/dateline/video/former-prosecutor-rebecca-ivanoff-on-stalking-coercive-control-and-the-fight-for-safety-248448581562  Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

When 21-year-old college student Helene Pruszynski is found murdered, the case remains cold for nearly forty years until a new detective uses an innovative method to catch Helene’s killer. Josh Mankiewicz reports. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Hey Dateline fans, here's a special preview of the next episode of Dateline: Missing in America Season 5. In “Breaking Point,” Josh Mankiewicz examines the disappearance of Bianca Carrasco, a 29-year-old oncology nurse and mother of three, who vanished from her home in San Antonio, Texas on May 1, 2016.  Listen to the full episode in the 'Dateline: Missing in America' feed - something you hear might jog a memory that could help authorities find Bianca. Follow now to get each episode completely free. Or subscribe to Dateline Premium on Apple Podcasts, Spotify or DatelinePremium.com. Subscribers receive ad-free listening and early access to episodes. swap.fm/l/miafdlw Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In Massachusetts, Lindsay Clancy's defense attorney grills final prosecution witnesses after they testify that she knew right from wrong when she killed her children. In Florida, a verdict has been reached in the trial of Mario Fernandez Saldana, a man accused of arranging the fatal shooting of his wife's ex-husband, Microsoft employee Jared Bridegan. In Dateline Round Up, the trial is underway for Duane "Keefe D" Davis, accused of orchestrating the 1996 shooting that killed rap legend Tupac Shakur. Donna Adelson, the Florida grandmother convicted of murdering her former son-in-law FSU law professor, Dan Markel, is asking for a new trial. Plus, a psychiatrist breaks down postpartum psychosis.   This episode discusses suicide. If you or someone you know is in crisis, call the Suicide & Crisis Lifeline at 988 or visit 988lifeline.org for more resources.   Listen to season 5 of the Dateline: Missing in America podcast: https://swap.fm/l/miafdlw.     Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Keith Morrison sits down with Dennis Murphy and Dateline producer Michelle Madigan to discuss their episode, “Simply Diabolical.” In May 2016, 29-year-old Michelle Hadley allegedly sent several threatening emails to her ex-boyfriend, Ian Diaz, and his new wife, Angela. But it wasn’t until Angela called 911 to report that she had been sexually assaulted and that Michelle was responsible for setting it up, that Michelle Hadley was arrested and sent to jail. The only problem was Michelle wasn’t behind the emails, or the alleged plot to have Angela sexually assaulted. She’d been set up by Ian and Angela. Dennis and producer Michelle Madigan tell Keith about the investigative work done by Hadley’s father to try to clear his daughter's name. Dennis shares an extra clip from an interview with one of Angela’s friends, as well as a clip from his interview with Michelle Hadley herself. Plus, our team answers your questions from social media. Have a question for Talking Dateline? Send us a DM @DatelineNBC or leave a voicemail at (212) 413-5252. Your question could be featured in an upcoming episode. Listen to the full episode of “Simply Diabolical”: https://swap.fm/l/dl_simplydiabolical Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

A bizarre cyber-revenge case lands a young woman in jail; an unexpected twist reveals the real culprit. Dennis Murphy reports. Keith Morrison and Dennis Murphy go behind the scenes of the making of this episode in 'Talking Dateline': https://swap.fm/l/talkingdatelinesimplydiabolical Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Hey Dateline fans, here's a special preview of the next episode of Dateline: Missing in America Season 5. In “No Ordinary Sunday,” Josh Mankiewicz reports on the disappearance of 28-year-old Marilyn “Niqui” McCown, who vanished in Richmond, Indiana, on July 22, 2001, just weeks before her wedding. Listen to the full episode in the 'Dateline: Missing in America' feed - something you hear might jog a memory that could help authorities find Niqui. Follow now to get each episode completely free. Or subscribe to Dateline Premium on Apple Podcasts, Spotify or DatelinePremium.com. Subscribers receive ad-free listening and early access to episodes. swap.fm/l/miafdlw Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In Massachusetts, Lindsay Clancy is on trial for allegedly murdering her three children. Her family and former colleagues testify for the defense. In New York, Luigi Mangione pleads guilty to federal stalking charges in the killing of UnitedHealthcare CEO Brian Thompson, while his lawyers seek to have the state murder case dismissed. In Dateline Round Up, Alex Murdaugh appears for a preliminary hearing ahead of his retrial for the murders of his wife and son. Plus, the trial begins for one of three people accused in the ambush murder of 33-year-old father Jared Bridegan. And an expert explains ghost guns and how they can complicate investigations.   This episode discusses suicide. If you or someone you know is in crisis, call the Suicide & Crisis Lifeline at 988 or visit 988lifeline.org for more resources.   Listen to season 5 of the Dateline: Missing in America podcast: https://swap.fm/l/miafdlw      Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In a special edition of Talking Dateline, NBC News’ Ellison Barber, host of the Netflix podcast, “Allegedly,” gives Josh Mankiewicz the third degree onstage at Caesars Palace in Las Vegas, for CrimeCon 2026. Josh tells Ellison how he got his start covering true crime and what these cases can teach us about ourselves and others. He also talks about the genesis of his award-winning podcast series, “Dateline: Missing in America,” before taking questions from the audience. Have a question for Talking Dateline? Send us a DM @DatelineNBC or leave a voicemail at (212) 413-5252. Your question could be featured in an upcoming episode. Listen to the “Missing in America” podcast: https://swap.fm/l/miafdlw Listen to Josh’s first true crime hour, “The Night Brianna Vanished”: https://swap.fm/l/dl_thenightbriannavanished Listen to the subscriber-exclusive “After the Verdict” episode on the case in which Josh catches up with Brianna’s mother: https://dateline.supportingcast.fm/listen/dateline-nbc-premium/after-the-verdict-the-night-brianna-vanished Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.