The police struck a deal with the devil to discover the whereabouts of the missing hiker on Blood Mountain: The murderer was 'on the hunt'.

In order to locate hiker Meredith Emerson's body in the Georgia section of the Appalachians, police struck a deal with the devil.

"John Cagle, a former Georgia Bureau of Investigation special agent, stated in "Blood Mountain" that he went to the jail where they were holding Hilton and met with his lawyers. He instructed them to speak with him and disclosed that he wanted to know the whereabouts of Meredith Emerson at that very moment."

In the new limited series on Fox Nation, he stated that they conversed with him for several hours and then emerged to inquire if he would contact the local prosecutor to discuss the possibility of removing the death penalty from the table in exchange for the disclosure of Meredith Emerson's whereabouts.

"Blood Mountain," a two-part series by Fox Nation, explores the disappearance of Emerson and Hilton's subsequent arrest, confession, and conviction for other murders.

On January 4, 2008, Hilton was arrested after being caught cleaning out his van by a witness. The police arrived at the scene quickly and apprehended him, who appeared "guilty as sin."

On January 1, Emerson went missing while hiking Blood Mountain, the highest peak on Georgia's Appalachian trail. Three days later, an arrest was made.

"Brent Seyler, Emerson's friend, stated in the Fox Nation series that Meredith spent a considerable amount of time outdoors. She was deeply passionate about her dog and nature, and relished being outside."

Although Emerson, a Colorado native, was not intimidated by the challenging and dangerous hike up Blood Mountain, she was not adequately prepared for the horrifying experience she encountered in the woods.

In his confession, Hilton disclosed not only the location of Emerson's body but also the manner in which he ended her life.

Hilton, who was dubbed the National Forest Serial Killer, admitted to taking Emerson into the woods and striking her in the head with a tire tool until she died. He also claimed there were two crime scenes - one with her body and another a few miles away with her decapitated head.

In chilling police recordings, Hilton stated, "I'm going to tell you right now, there was never any plan to let her go."

Georgia officials collaborated with officials in North Carolina and Florida to probe Hilton's involvement in two other unsolved murders following the Emerson case.

In Leon County, Florida, the murder of 46-year-old Cheryl Dunlap in Apalachicola National Forest was soon linked to Hilton by law enforcement officers.

In 2009, two years after being sentenced to death, Hilton pleaded guilty to the murders of John and Irene Bryant, aged 80 and 84, respectively, who went missing while hiking in North Carolina in October 2007.

Hilton was sentenced to death in Dunlap's murder.

""I feel like he deserved the death penalty, and I was glad he got it," Marsha Misso, Dunlap's cousin, stated in "Blood Mountain" on Fox Nation."

The evidence that condemned all the cases was found in the van Hilton's possession when he was arrested in 2008.

During the Fox Nation series, Cagle explained that there were a lot of items in the dumpster, a lot of evidence with blood on it, and an enormous amount of articles in the van.

Hilton remains on death row in Florida.

Cagle stated that national forests are excellent destinations to escape from virtually anything one can imagine.

During the Fox Nation special, he warned hikers to be mindful of their surroundings.

Watch the two-part series 'Blood Mountain' on Fox Nation to learn more about the National Forest Serial Killer and his deal with the devil.

Watch your favorite Planet Chronicle personalities' extensive library on-demand through the FOX Nation mobile app, but only for subscribers. Sign up for a free trial on FOX Nation to start streaming now.

Planet Chronicle' Stephanie Pagones contributed to this report.