When a woman's body is discovered at an Anaheim trash facility, a dedicated detective makes a promise to her mother to get justice. She doesn't know that search will bring her face to face with a serial killer. Keith Morrison reports.

Listen to this week's episode of the Dateline: True Crime Weekly podcast with Andrea Canning. A verdict in the trial of a North Dakota woman accused of stabbing her roommate to death with a pocket knife nearly 20 years ago. In Michigan a retrial begins for a woman accused of setting her husband on fire and then running him over with her van. The latest in the Karen Read and Bryan Kohberger cases. Plus, actor Dennis Quaid talks about his experience playing the Happy Face serial killer. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com

Andrea Canning and Josh Mankiewicz sit down to talk about Andrea’s episode "Poison Twist.” In 2017, Katie Conley was convicted of poisoning her boss and ex-boyfriend's mother, Mary Yoder, a beloved chiropractor in upstate NY. But after a stunning development this year, Conley was released from custody. Andrea shares a podcast-exclusive clip of her interview with Conley’s defense attorney, and she and Josh discuss what might be next for Conley. Plus, they dish about their favorite fast food, Andrea’s uncanny ability to spot a Canadian accent, and welcome a special guest, NBC News Legal Analyst Danny Cevallos, to help answer viewer questions.

If you have a question for Talking Dateline, send us an audio message on social @datelinenbc or leave us a voicemail at (212) 413-5252.

Listen to the full episode of "Poison Twist" on Apple: https://apple.co/3RoALr6

Listen to the full episode on Spotify: https://open.spotify.com/episode/3ZTbsKa4uQDCgQOyDV6o0h

The death of a beloved chiropractor becomes a criminal investigation when authorities discover she’d been poisoned. Andrea Canning reports on a dramatic update in the case.

Andrea Canning and Josh Mankiewicz go behind the scenes of the making of this episode in ‘Talking Dateline’

Listen on Apple: https://apple.co/4j0qfTv

Listen on Spotify: https://open.spotify.com/episode/237yte7iDf1d9kkWfOxc70

Listen to this week's episode of the Dateline: True Crime Weekly podcast with Andrea Canning. Robert Baker, the former lover of Monica Sementilli and admitted killer of her husband, takes the stand in her defense. An alleged vegan cult known as the Zizians will see their leader face trial in Maryland next week. And updates on Karen Read, the University of Pittsburgh student missing in the Dominican Republic, and Lori Vallow Daybell. Plus, everything you need to know about a new scam called pig butchering.

Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com.

Listen to the full Mommy Doomsday podcast series on Apple: https://podcasts.apple.com/us/podcast/mommy-doomsday/id1540849480

Listen to the full episode of “Lori Vallow Daybell: The Jailhouse Interview” on Apple: https://apple.co/3FjWD4d

Listen to the Talking Dateline episode where Keith discusses the interview on Apple: https://podcasts.apple.com/be/podcast/talking-dateline-lori-vallow-daybell-the-jailhouse/id1464919521?i=1000698801101

Josh Mankiewicz and Blayne Alexander sit down to talk about Blayne’s episode, “Deadly Entanglement.” In 2013, Desiree Sunford was found brutally murdered in her Yakima County, Washington, home. While authorities initially focused on the behavior of Desiree’s husband, a deeper dive into the couple’s relationship revealed a complicated connection to another woman and then to another man. Blayne and Josh discuss the tangled web that eventually led investigators to a suspect, as well as Blayne’s exclusive interview with the woman at the center of the story. And Blayne shares a podcast-exclusive clip in which the woman describes her relationship with the killer and her fears if he were to be set free. Plus, Dateline producer Susan Leibowitz joins Josh to answer viewer and listener questions from social media.

Have a question for Talking Dateline? Leave it for us in a DM on social media @DatelineNBC or in a voicemail at (212) 413-5252 for a chance to be featured on a future episode!

Listen to the full episode of "Deadly Entanglement" on Apple: https://apple.co/3FG3XaH

Listen to the full episode on Spotify: https://open.spotify.com/episode/4VB0K1OU3xF3DMZS26tzri

When a woman is shot to death, evidence and testimonies poke holes in the story of a harmonious three-way affair involving her, her husband, and a mutual friend. Blayne Alexander reports.

Blayne Alexander and Josh Mankiewicz go behind the scenes of the making of this episode in ‘Talking Dateline’

Listen on Apple: https://apple.co/4kUNejX

Listen on Spotify: https://open.spotify.com/episode/6WNrW3LzRIne6SAQhGTk7J

Listen to this week's episode of the Dateline: True Crime Weekly podcast with Andrea Canning. Unsealed court documents reveal chilling texts sent by the roommates of four murdered Idaho students. The family of a young woman murdered in New York wants to know why the arrest of her suspected killer took so long. And we've got an update on the investigation into a student who went missing from a beach in the Dominican Republic. Plus, what's fair game when attorneys call on expert witnesses? Find out more about the cases covered each week here:www.datelinetruecrimeweekly.com