The family matriarch’s defense. A landmark decision in the Gilgo Beach murders case. And a mom hits the road seeking justice.

After just over three hours of deliberations, a Florida jury finds Donna Adelson guilty on all counts — but could more charges be coming in the case? In Utah, a woman is charged with killing her husband. Now, she's admitted to her role in the plot — and says her mother and brother were involved, too. Updates on the Burning Man murder and the Wisconsin kayaker who faked his own death. Plus, when should a defendant take the stand in their own defense?Find out more about the cases covered each week here: www.datelinetruecrimeweekly.comTo learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here: https://www.nbcnews.com/dateline-event

In his first “Talking Dateline,” Lester Holt sits down with Andrea Canning to discuss her latest episode, “Secrets of Exam Room 9.” In 2023, when loving mother of six, Angela Craig, fell suddenly ill and died, doctors had no answers for her grieving friends and family. Meanwhile, police were putting together the pieces of a sinister puzzle. Angela’s dentist husband, Dr. James Craig, had poisoned her. Lester and Andrea talk about the surprising evidence that led investigators to Dr. Craig, and the painful effect this crime had on Angela’s community. Later, Andrea shares a podcast-exclusive clip from her interview with the two lead detectives on the case. Plus, she and Lester answer your questions from social media.Listen to the full episode Secrets of Exam Room 9 on Apple: https://apple.co/3V5zJT3Listen to the full episode on Spotify: https://open.spotify.com/episode/6bZU1sKVU0iAk0qTzlqBpBTo learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here:https://www.nbcnews.com/dateline-event

Hey Dateline fans! As a bonus for you, we’re sharing the trailer for Deadly Engagement an all-new original podcast series from Dateline and Josh Mankiewicz. It’s the story of Denita Smith, a promising young photographer with a bright future and engagement ring from a man she loved. But her future vanished in a puff of gun smoke when a mysterious assailant shot her dead outside her home. Dateline’s Josh Mankiewicz takes us to North Carolina for a twisted story that reveals a love triangle involving sex, lies and an audio tape that had everyone guessing who really killed Denita.  Follow now to get the first two episodes on Tuesday, September 16 completely free. Or subscribe to Dateline Premium on Apple Podcasts, Spotify or DatelinePremium.com to hear the first two episodes now. Subscribers receive ad-free listening and early access to subsequent episodes.

A Colorado mother of six dies suddenly after an apparent medical illness, raising suspicion around her husband — a respected dentist and LDS church member. Andrea Canning reports.Lester Holt and Andrea Canning go behind the scenes of the making of this episode in ‘Talking Dateline’Listen on Apple: https://apple.co/46wz6bpListen on Spotify: https://open.spotify.com/episode/78H8ivyo5q75nTkAIrSKLh 

Inside the defense of Florida grandmother Donna Adelson. In Long Island, a judge's ruling on DNA ahead of alleged Gilgo Beach serial killer, Rex Heuermann's, murder trial. Plus, almost 21 years after her daughter was murdered, a mother hits the road to bring awareness to the unsolved case.

Blayne Alexander and Keith Morrison sit down to talk about his episode “ Under a Full Moon.” Shauna Tiaffay, a cocktail waitress on the Las Vegas strip, was found beaten to death in her home in September 2012.  Authorities wondered if the killing was a robbery gone wrong, until they got a tip that changed everything. It turned out that Shauna’s West Point graduate and EMT husband, George Tiaffay, had hired a hitman to carry out the crime. Keith and Blayne discuss how George was an unlikely killer and how his post-trial confession stunned his family. Later, Keith shares an extra clip from his interview with George’s sister. He and Blayne also answer your questions from social media.Listen to the full episode Under a Full Moon on Apple: https://apple.co/4lYmizkListen to the full episode on Spotify: https://open.spotify.com/episode/6GQUTnC0bvj7kYN9iS9dRGTo learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here:https://www.nbcnews.com/dateline-eventIf you or somebody that you know is experiencing domestic violence or relationship abuse, contact the National Domestic Violence Hotline at 800-799-SAFE (7233), text BEGIN to 88788, or visit thehotline.org

A Las Vegas cocktail waitress is found murdered in her home, leading authorities to wonder if there is a predator at large. Keith Morrison reports.Blayne Alexander and Keith Morrison go behind the scenes of the making of this episode in ‘Talking Dateline’Listen on Apple: https://apple.co/46k2MbGListen on Spotify: https://open.spotify.com/episode/7g0KGFL590nFZYFTg7KMoU 

Two of Donna Adelson's children testify this week for the prosecution. In Northern California, a missing woman's husband is indicted for her murder more than a year after she vanished -- and a year and a half after he was indicted on felony domestic violence charges for an alleged attack on her. Plus, a former prosecutor on DNA's uses and pitfalls. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com To learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here: https://www.nbcnews.com/dateline-event

A mother of two vanishes from her home, leading investigators to uncover a disturbing connection between her recent weight loss and her mysterious disappearance. Andrea Canning reports. 

Early one frigid morning, in a small rural New York town, a house burns to the ground, and a woman is found dead in the debris. It's called an accident, but is it? Andrea Canning reports.