Now that "What Happened to Holly Bobo?" has come to a close, we're sharing the first episode of our new series from 20/20 and ABC Audio, "The Hand in the Window." A 911 call becomes the first step in an investigation that would reveal sinister and shocking crimes. To catch new episodes early, follow "The Hand in the Window" for free on ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ ⁠⁠Apple Podcasts⁠⁠, ⁠⁠Spotify⁠⁠, ⁠⁠Amazon Music⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠, or wherever you listen to podcasts. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Zach Adams is serving a life sentence for the kidnapping and murder of Holly Bobo. But with a new legal team behind him, could his fate change? Learn more about your ad choices. Visit podcastchoices.com/adchoices

One of Tennessee's most high-profile murder cases goes to trial. Learn more about your ad choices. Visit podcastchoices.com/adchoices

The kidnapping of Holly Bobo becomes a murder. Learn more about your ad choices. Visit podcastchoices.com/adchoices

As law enforcement continues its search for Holly Bobo's kidnapper, four names rise to the top of the list. Learn more about your ad choices. Visit podcastchoices.com/adchoices

The search for Holly Bobo continues, and investigators start pruning their list of potential suspects. Learn more about your ad choices. Visit podcastchoices.com/adchoices

A young nursing student walks into the Tennessee woods — and vanishes. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Nearly 15 years ago, a young nursing student named Holly Bobo disappears from her home in rural Tennessee. A few years later, her remains are found — not far from where she went missing. Even after suspects go to prison for her death, the question remains for some: What happened to Holly Bobo? Learn more about your ad choices. Visit podcastchoices.com/adchoices