An elderly woman working alone high up in a fire-spotting tower in the Canadian wilderness disappears while on-duty. Evidence at the scene points to foul play but police investigators remain baffled as to who climbed the tower to get her and why? Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

When a toddler vanishes from a campground in Joshua Tree National Park, her name becomes a national headline overnight. The decades-long investigation to determine what happened to her leads authorities in many directions and a father to the brink of his sanity. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit 

When two women are viciously gunned down in a Pennsylvania state forest, authorities are left chasing a man who knows the mountains like the back of his hand. The motive behind the slaying is dubbed a hate crime and the lone survivor ensures the world knows it. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

Two young girls vanish into thin air along the boundary of Glacier National Park in Montana. Their disappearance plagues a small Montana community for years, until a ruthless predator strikes again, leading authorities to the doorstep of a sadistic man who claimed to have no memory of his horrific deeds. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

A Canadian park ranger and his wife are gunned down inside their cabin in Riding Mountain National Park. For 90 years the suspect has eluded Royal Canadian Mounted Police investigators…and the reason may be hiding in several pages of the lawman’s diary that the killer removed from the scene of the crime. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

When two young lovers are found brutally murdered in a designated park shelter on the Appalachian Trail in Pennsylvania, authorities work quickly to capture their killer. The man they come face-to-face though with has a dark past and list of even more victims across two U.S. states. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

In 1991, a Montana man and his beloved dog failed to return from a 4-day hike searching for shed elk antlers in Yellowstone National Park. Questions surrounding what happened to them range from accident to animal attack to murder and the truth of what really happened to Daniel Campbell remains hidden even three decades later. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

In the summer of 1958 a ten-year-old boy vanished from a Catholic church camp in Rocky Mountain National Park. The mystery surrounding what happened to him seemed straight forward, until horrific secrets of the camp he loved surface and sent investigators into an entirely new direction. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

Acadia National Park may exist on an island but in the late 1970's a human predator showed up there and started hunting. The identity of the killer has remained unknown for more than four decades and the mystery as to who killed Leslie Spellman is still waiting to be uncovered. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

In 2012 the disappearance of a young man working in the trucking and oil industry of North Dakota raised alarm for citizens...but the saga of events and murder-for-hire plots that followed left everyone in this portion of the badlands baffled and bewildered. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

In 2015, when a young man shows up dead in a doorway of a historic church in Great Smoky Mountains National Park, rumors about who stabbed him to death run rampant in communities surrounding Cherokee, North Carolina. The identity of the predators who took his life surprise those closest to the victim and people living on the sacred land they considered to be a sanctuary in its own right. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

In 2018, two seasonal workers at an inn on the Blue Ridge Parkway in Virginia set out on a hike and only one returned alive. The reality of who was behind the demise of Sara Ellis is incomprehensible and to this day remains a horrific case for investigators and the victims' family to relive. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit 

On New Year's Day in 2012 park ranger Margaret Anderson encountered a violent man on an icy roadway in Mount Rainier National Park. The aftermath of their confrontation led authorities on a park-wide manhunt that sent questions flying as to how a predator carrying so much firepower made it through the gates.Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit

Park Predators Season 2 has wrapped, but Delia is bringing listeners one more story...an active murder mystery in Utah that has outdoor enthusiasts and the world wondering who shot two women in their campsite in August 2021? The FBI and state police are working tirelessly to catch a killer that is still lurking in the La Sal Mountains.Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/bonus-the-campers/ 

A park ranger in Hot Springs National Park stumbles upon an illegal alcohol operation and pays the ultimate price. His murderers are still unaccounted for, leaving everyone in Arkansas mystified for nearly 100 years. Who really killed National Park Ranger James Cary and is the answer somewhere bubbling just beneath the surface?Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/the-ranger-bonus/ 

Two Dutch women visiting Panama vanish while hiking in the jungle. Cryptic clues, body parts and their camera point to foul play, but the question of what or who really happened to Kris Kremers and Lisanne Froon remains unanswered.Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/the-camera/ 

A woman’s mysterious death in Grand Canyon National Park in 1993 reveals one man’s horrible secret. Robert Spangler ran from his dark past for years but could not suppress the predator within. Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/the-widower/

A rafting trip for the Rothgeb family in the summer of 1984 ends with a mother and teenage daughter dead and the father, David, under investigation for their double murder. His hidden lifestyle seals his fate in court, but just like the rivers in the Ozarks, many people are split as to whether the father was framed or a predator remains lurking on the riverways.Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/the-river/ 

A 30-year-old man disappears into the Jefferson National Forest, leaving his beloved dog behind in his car. His body is found at a popular swimming hole and pieces of critical evidence are placed beneath his missing posters months after his murder. Turns out, he isn't the only 30-year-old man to suffer a fatal fate on this section of the Appalachian Trail. The stories of Scott Lily and Chad Austin point to a predator who's gone undetected in the mountains of Virginia for decades.Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/the-waterfall/ 

In the dead of winter 1977 a suspected serial killer moonlighting as a military police officer abducts four teenagers who were out on a double date in the heart of the Ozarks. Johnny Lee Thornton's diabolical mind and dark deeds are revealed when the snow melts and the facade of his seemingly normal personality disintegrates. The question still lingering to this day is, did this predator have more victims in the Ozarks?Sources for this episode cannot be listed here due to character limitations. For a full list of sources, please visit https://parkpredators.com/the-officer/