A Utah grief author's murder trial. Eyewitness drama in Florida. Plus, Nancy Guthrie and Olivia Lone Bear.

The highly anticipated trial of Utah mom-of-three Kouri Richins is finally underway. Prosecutors say she poisoned her husband with fentanyl. In Miami, jurors watch video testimony of an eyewitness who may have seen the killer of football player Bryan Pata. In Dateline Round Up, Nick Reiner enters a plea and a former American Idol contestant is arrested for murder. Plus, in light of her mother Nancy's disappearance, Savannah Guthrie calls for greater attention to missing persons cases. We share the story of Olivia Lone Bear, a young mother whose death is still unsolved.   Nancy Guthrie Tipline: 1-800-CALL-FBI (1-800-225-5324)   Unresolved: The Case of Olivia Lone Bear: https://www.nbcnews.com/dateline/video/unresolved-the-case-of-olivia-lone-bear-119617605728   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.

Blayne Alexander sits down with Keith Morrison to discuss his original series, “Murder & Magnolias.” In 2017, a bitter divorce between prominent Charleston, South Carolina, couple Chris and Nancy Latham spiraled into a murder-for-hire investigation that stunned the community. Blayne and Keith break down the key moments in the case, including the unlikely person who helped authorities crack it, and the “hit packet” that brought the plot into focus. Plus, Dateline producer Carol Gable joins the conversation to discuss where Nancy Latham is today and what it took to report the story. Keith also talks about what -- if any -- his aspirations were before getting into journalism, and the team reflects on some of their most dangerous moments in the field. Plus, they answer viewer and listener questions. Have a question for Talking Dateline? DM us @DatelineNBC or leave a voicemail at (212) 413-5252. Your question could be featured in an upcoming episode. Listen to the series on Apple: https://apple.co/40tIdpy Listen on Spotify: https://open.spotify.com/show/4VpCDcpZxWVTEuJrZCKMoj Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

A hit man arrives in Charleston, South Carolina with a member of a wealthy and well-known family in his crosshairs. This episode was originally published on November 15, 2022. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

A manila envelope filled with maps and photos helps investigators start to unravel a deadly plot. This episode was originally published on November 15, 2022. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

The investigation into a murder plot leads to a femme fatale with a past. This episode was originally published on November 22, 2022. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Lovers on the line in jailhouse phone calls reveal new clues. Then, a big arrest. This episode was originally published on November 29, 2022. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

A hit man makes a choice, and the trial gets underway. This episode was originally published on December 6, 2022. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

The jury renders its verdicts. Afterwards, a remarkable moment of forgiveness takes place. This episode was originally published on December 13, 2022, and updated on February 23, 2026. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In Michigan, prosecutors play bodycam at the trial of Dale Warner, a farmer on trial for allegedly murdering his wife and concealing her body in a fertilizer tank. In Miami, twenty years after Bryan Pata, the star defensive lineman on the University of Miami football team, was gunned down on the way home from practice, his teammate goes on trial for his murder. In Dateline Round Up, verdicts in the Paul Caneiro and Tara Baker trials. Plus, NBC News' Vicky Nguyen shares some tips on stadium safety.   Nancy Guthrie Tipline: 1-800-CALL-FBI (1-800-225-5324)   Nancy Guthrie images: https://www.fbi.gov/wanted/kidnap/nancy-guthrie   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.

Andrea Canning sits down with Keith Morrison to discuss his original podcast series, "The Girl in the Blue Mustang." After 18-year-old Michelle O'Keefe was found murdered in a California park-and-ride in 2000. In 2009 --  after two juries deadlocked -- security guard Raymond Lee Jennings was convicted of her murder at a third trial. But everything changed in 2015 when a Dateline viewer saw the story and vowed to prove Jennings's innocence. The conviction was overturned by a judge and Jennings was released after more than a decade in prison. Keith tells Andrea what it was like covering this story for decades, both in and out of the courtroom. Later, they talk about other stories they’ve done involving multiple trials. Plus, Keith shares two exclusive clips: one from his interview with that curious Dateline watcher, Clint Ehrlich, and another with the man Clint helped get exonerated.   Have a question for Talking Dateline? DM us a video to @DatelineNBC or leave a voicemail at (212) 413-5252. Your question may be featured in an upcoming episode. Listen to the series on Apple: https://apple.co/4rIm9Um Listen on Spotify: https://open.spotify.com/show/5E7c5QCqNMihKSQx5eX4aa   Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.