Today, we're sharing something special with you. This is the first episode of 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

This bonus episode of "Devil in the Desert" explores the perspective of the elusive third man involved in the crime of violent kidnapping and torture: Ryan Kevorkian. Matt Gutman and "Start Here" host Brad Mielke tell the story of the one person willing to share a first-hand account from the night of the crime, using never-before-heard police interview tape of Kevorkian himself. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Now that "Devil in the Desert" has come to a close, we're sharing the first episode of our latest series from 20/20 and ABC Audio, "Cold Blooded: Mystery in Alaska." A welfare check leads to the discovery of a body ? and some strange clues. To hear the whole six-episode 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

Hossein Nayeri and two other fugitives are on the run. Would Nayeri ever face justice? Learn more about your ad choices. Visit podcastchoices.com/adchoices

The wife of Hossein Nayeri is the key to luring him back from Iran. But can investigators trust her?  Learn more about your ad choices. Visit podcastchoices.com/adchoices

What does Hossein Nayeri?s wife know about his involvement in the horrific crime against Mary Barnes and Michael?  Learn more about your ad choices. Visit podcastchoices.com/adchoices

How did a former high school wrestling star from Fresno become the main suspect in a brutal crime? Learn more about your ad choices. Visit podcastchoices.com/adchoices

A neighbor who sees something odd outside her window leads investigators to their first clue. Learn more about your ad choices. Visit podcastchoices.com/adchoices

In October 2012, a man is found brutally tortured in the Mojave Desert ? setting off a decade-long chase to bring the perpetrators to justice. Learn more about your ad choices. Visit podcastchoices.com/adchoices

In 2012, a woman was found with her hands bound in the Mojave Desert. She led authorities to a grisly crime scene where a barbaric attack had taken place. This moment marked the beginning of an international manhunt and a sting operation that turned a once-devoted wife into an informant. Authorities zeroed in on the so-called mastermind behind the attack: Hossein Nayeri, a charming man who had ties to the emerging medical marijuana industry in California. Told with police tapes, secretly recorded informant calls and footage of a prison break, ?Devil in the Desert" unravels a crime so brutal that it still haunts investigators today. "Devil in the Desert" is a six-part series from 20/20 and ABC Audio. Follow the show for weekly episodes on Tuesdays. Learn more about your ad choices. Visit podcastchoices.com/adchoices