20/20

Exclusive interviews and new evidence in the shocking case of a Colorado dentist convicted of murdering his wife by poisoning her protein shakes. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Introducing the latest true crime podcast from 20/20 and ABC Audio, "Vanished: What Happened to Vanessa." In episode one, Private First Class Vanessa Guillén shows up for work one morning at the Fort Hood Army base and disappears without a trace. When she stops responding to text messages, her tight-knit family in Houston immediately sounds the alarm. Who was Vanessa Guillen? How did this strong 20-year-old soldier suddenly go missing on a military base? And why does she inspire an international movement? To catch new episodes early, follow "Vanished: What Happened to Vanessa" for free on ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Apple Podcasts⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Spotify⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Amazon Music⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, or wherever you listen to podcasts. Learn more about your ad choices. Visit podcastchoices.com/adchoices

An exclusive prison interview with Diane Staudte, the mother behind a sinister plot to poison her husband and two children. Originally broadcast: February 25, 2022 Learn more about your ad choices. Visit podcastchoices.com/adchoices

ABC News' Stephanie Ramos shares insights on a Maryland case that was unsolved for more than two decades. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Lauren Preer shares heartfelt memories of her mother, Leslie, whose murder left deep scars on their family. Brett Reedy recalls the shocking day Leslie's body was discovered, revealing the emotional turmoil that enveloped their community. Brad Bell covers the chilling details that led to a major breakthrough in the case, thanks to DNA evidence. The discussion intertwines personal loss with investigative persistence, shedding light on the profound effects of violence and the pursuit of justice that lingers on, even decades later.

"Cold Blooded" host Chris Connelly and "Start Here" host Brad Mielke discuss the dualities of Ketchikan and the case of Dr. Eric Garcia, as well as the "gamble" Jordan Joplin took by murdering the beloved surgeon. All of "Cold Blooded: Mystery in Alaska" is out now. You can listen to the entire series for free on ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Apple Podcasts⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Spotify⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Amazon Music⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, or wherever you listen to podcasts. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Marni Yang, a single mother of three who is serving a double life sentence in the murder of football player Shaun Gayle's pregnant girlfriend, talks about the case and her petition for a new trial. Originally broadcast: May 8, 2020 Learn more about your ad choices. Visit podcastchoices.com/adchoices

ABC's Kayna Whitworth shares the latest in the case of Brian Kohberger. Learn more about your ad choices. Visit podcastchoices.com/adchoices

New details uncovered about the crime, evidence and shocking guilty plea in the Idaho College murders. Learn more about your ad choices. Visit podcastchoices.com/adchoices

In episode six of Cold Blooded: Mystery in Alaska, investigators race to get their smoking gun before the case heads to trial. To catch up on the entire series, follow "Cold Blooded: Mystery in Alaska" for free on ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Apple Podcasts⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Spotify⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Amazon Music⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, or wherever you listen to podcasts. Learn more about your ad choices. Visit podcastchoices.com/adchoices