The Unknown

When a young man’s body is found in a picnic pavilion in Tulsa’s Mohawk Park stripped of clothing and belongings, law enforcement is left with many questions. But within a matter of weeks, clues begin to emerge and authorities zero in on not one…but two killers View source materi ...  Show more

A fight between a couple at an overlook in Arches National Park ends with one of them dead, a family of good samaritans over a cliff, and a car on fire. If you or someone you know is experiencing domestic violence, help is available through the National Domestic Violence Hotline ...  Show more

When a National Park Service Ranger vanishes from his post in the Arizona mountains, he's never seen again. Questions endure in the strange and controversial case of the only National Park Service Ranger to ever go missing—and never be found—in this episode of Last Seen Alive. If ...  Show more

David Paulides, a former police officer turned researcher, has spent years investigating unexplained deaths and disappearances in North America’s national parks. His work has catalogued thousands of cases that defy easy explanation. In this episode, we follow his findings and ask ...  Show more

Up and Vanished presents... Status: Untraced. In 2016, survivalist and world traveler Justin Alexander goes missing in the Parvati Valley while on a spiritual trek into the Himalayan Mountains. While the circumstances of his disappearance point to murder, a chilling message he le ...  Show more

When an experienced hiker vanishes from one of her favorite trails, her friends and family are forced to wonder – Did she walk away from her life? Did she underestimate the danger of the great outdoors? Or did she fall prey to a threat of a more sinister nature?