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

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

When Kelly Horn finds out her father, former FBI agent Scott Horn, has been murdered at his house, she is stunned. As police dig into Scott’s past, they begin to think the key to the mystery might be quite close to home. Josh Mankiewicz reports.

Hey Dateline fans, here's a special preview of the next episode of Dateline: Missing in America Season 5. In "Haleigh's Secret," Josh Mankiewicz reports on the disappearance of 22-year-old Army veteran and mother Haleigh Murphy, who was last seen leaving a bar in Round Rock, Texas with a male friend on June 16, 2023. Her family has not heard from her since that night. Listen to the full episode in the 'Dateline: Missing in America' feed - something you hear might jog a memory that could help authorities find Haleigh. 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

In Massachusetts, young mom Lindsay Clancy is on trial for allegedly murdering her three children. Her psychiatrist testifies about her mental state before killings. In California, Tyler McCain is accused of killing his wife, Nikki, who went missing in 2024 after filing a domestic violence report against him. In Dateline Round Up, former OnlyFans model Courtney Clenney pleads guilty to stabbing boyfriend. Update in the case of Luigi Mangione, alleged killer of UnitedHealthcare CEO Brian Thompson. Plus, prosecutors using rap lyrics and memoirs as evidence in court. 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. And if you need resources on domestic violence call the National Domestic Violence Hotline at 800-799-7233. Or visit thehotline.org 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.

Keith Morrison and producer Cassandra Marshall join Blayne Alexander to discuss their Dateline episode, “Suspicion in Silver City.” It’s the story of Cassy Farrington, a young nurse and mother of two in Silver City, New Mexico, whose body was found in a bathtub in her home in 2014. Keith and Cassandra discuss weaknesses in initial investigation and the family’s determination to keep Cassy’s case alive. They also reflect on Cassy’s life and the allegations of domestic abuse in her marriage. Keith shares a clip from his interview with a former judge who is familiar with the case, and he and Cassandra answer your questions from social media. For resources on domestic violence, call the National Domestic Violence Hotline at 800-799-7233. Or visit thehotline.org Listen to Season 5 of the Dateline: Missing in America Podcast: https://swap.fm/l/miafdlw Listen to Blayne’s episode, “The Pin at Apartment 210”: swap.fm/l/dl_thepinatapartment210

When the mysterious death of a 23-year-old mother in New Mexico goes unsolved, her family searches for answers. Keith Morrison reports. Keith Morrison and Blayne Alexander go behind the scenes of the making of this episode in 'Talking Dateline': https://swap.fm/l/talkingdatelinesuspicioninsilvercity

Hey Dateline fans, here's a special preview of the next episode of Dateline: Missing in America Season 5. In "Gone by Noon," Josh Mankiewicz delves into the disappearance of 19-year-old Cheryl Scherer, who vanished from the Rhodes Pump-Ur-Own gas station in Scott City, Missouri, on April 17, 1979, and hasn't been seen since.  Listen to the full episode in the 'Dateline: Missing in America' feed - something you hear might jog a memory that could help authorities find Cheryl. 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

In Miami, 30-year-old OnlyFans model Courtney Clenney is charged with fatally stabbing her boyfriend, Christian Obumseli, in 2022. In Las Vegas, alleged gang leader Duane "Keffe D" Davis faces trial for the murder of 25-year-old hip-hop star Tupac Shakur in a drive-by shooting almost three decades ago. Prosecutors are using his own words as evidence against him. In Dateline Round Up, updates in the trial of former labor and delivery nurse, Lindsay Clancy, accused of murdering her three children. Kouri Richins, Utah mom and children's book author convicted of murdering her husband, is back in court. Plus, the milk carton kids. Dateline: Missing in America Podcast Season 5: https://www.nbcnews.com/datelinemissing. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com.

Josh Mankiewicz sits down with Andrea Canning to discuss her episode, “The Day Dee Disappeared.” In April 2021, Dee Warner vanished from her Michigan farm. Investigators pursued multiple leads, but kept coming back to her husband, Dale. In 2023, Dale Warner was charged with his wife’s murder, even though her remains had not been found. That changed ahead of trial, when Dee’s remains were located in a most unlikely place. Dale was found guilty of second-degree murder. Andrea shares an exclusive clip from her interview with Dee’s nephew, who recounts an unusual visit with a psychic who offered a theory about what might have happened to Dee. Josh and Andrea discuss how they both covered the case and how Josh’s podcast, Missing in America, shed light on Dee’s disappearance early on. Plus, Josh is joined by Dateline producer Sergei Ivonin to answer 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 “The Day Dee Disappeared”: https://swap.fm/l/dl_thedaydeedisappeared Listen to Josh’s Missing in America episode on Dee’s case: https://swap.fm/l/miadeeannwarner Start listening to the new season of Missing in America, out now: https://swap.fm/l/miafdlw