The bullet fragment is found right where Emry’s skull would have been located, according to authorities.

Jennifer Marcum, at age 24. (Courtesy of Bob Marcum)

Scott Kimball participates in a third search for bodies, insisting that Jennifer Marcum is buried in the same area of eastern Utah that LeAnn Emry’s remains had been found the previous month.

But no new discoveries are made, and Kimball tells the FBI that Jennifer may be buried as far as 60 miles away from the site being searched.

Jennifer’s body has still never been found.

Investigators suspect that Kimball may be hanging on to the information as leverage, as a way of extracting something of value from someone somewhere down the road.

“If he thought giving up Jennifer’s remains would benefit him, he would say where they are,” FBI Special Agent Jonathan Grusing said.

Kimball says the FBI won’t provide him the resources to find Jennifer.

“From day one I told the FBI that finding Jennifer would be the hardest to find,” he wrote in response to questions from the Camera. “I’m willing to keep looking.”

The Utah site where LeAnn Emry's remains were found. (Courtesy of Howard Emry)

During a second hunt for bodies, Scott Kimball leads investigators to a wash in Bryson Canyon.

FBI Special Agent Jonathan Grusing is the first to find a bone and then additional remains. They are later determined to be LeAnn Emry’s, based on DNA from her parents, Darlene and Howard Emry.

Boulder County prosecutor Katharina Booth said coming upon Emry’s bones was extremely emotional and moving.

A fragment of a brass-jacketed bullet is found the next day in the area where LeAnn’s skull would have been located when she was killed.

In a separate search for Jennifer Marcum’s remains, which Kimball insists are nearby, nothing is found.

Amy Okubo, also a chief deputy with the Boulder County District Attorney’s Office, said Kimball knows exactly where Marcum is and was simply “messing with us.”

Kimball and investigators pore over computer-generated maps and satellite photos in an effort to narrow down the search field. No remains are found.

Bryce Canyon National Park. (earthdocumentary.com)

Scott Kimball and his girlfriend, Denise Pierce, go to Bryce Canyon National Park in Utah to shoot guns.

Pierce would later identify the handgun they used as part of a federal firearms case against Kimball.

LeAnn Emry's abandoned car. (Courtesy of Howard Emry)

A Grand County, Utah, sheriff’s deputy finds LeAnn Emry’s Toyota Corolla abandoned in the remote Harley Dome area off of Interstate 70.

Her belongings — camping and caving equipment, a cell phone, a purse — are still in the car.

“Everything was there, except her,” said her father, Howard Emry.

There are footprints outside the vehicle, but no sign of a struggle or fight.

Utah’s Bryson Canyon, where Scott Kimball killed LeAnn Emry. (Courtesy of Howard Emry)

After checking out of the Super 8 motel in Grand Junction, Colo., LeAnn Emry is never heard from again.

Kimball later told a fellow inmate that he killed LeAnn after telling her they were going for a hike in Bryson Canyon in eastern Utah.

According to that account, Kimball told her to strip nude and to kneel down before shooting her in the head.

Kimball has since claimed that members of a drug gang executed LeAnn and he was only a witness.

LeAnn, 24, was shot with the gun she bought a few days earlier.