On March 14, 2023, Kyle Hernandez, a 27-year-old geologist, and Marcus Webb, a 26-year-old high school science teacher, set out for a three-day hiking trip in the eastern Mojave Desert. Their itinerary, filed with the Joshua Tree National Park Visitor Center, called for exploring remote canyons and returning by March 17. Security cameras at a gas station in Twentynine Palms captured them filling their Jeep Wrangler with fuel and buying extra water at 6:18 that morning. Their cell phones pinged a tower near the park’s eastern boundary at 7:42 a.
m. Then nothing. When neither man returned to work, rangers began searching on March 18. They found the Jeep abandoned at a remote trailhead, camping gear still inside, backpacks missing.
A single hiking boot lay three meters from the vehicle. Dogs followed the scent to a rocky outcropping where the trail abruptly ended. A water bottle bearing Kyle’s fingerprints was found roughly five miles from the trailhead. Extensive search operations yielded nothing else.
After nine days, the official search was scaled back, and the case went cold. Eighteen months later, on September 23, 2024, a wildlife biologist conducting a desert tortoise survey stumbled upon two men sitting back to back on a flat rock formation twenty-two miles northeast of where the Jeep had been discovered, well outside park boundaries. One man was dead, his mummified remains propped against the back of the other. The living man was severely emaciated, dehydrated, his skin burned and peeling.
It was Marcus Webb. When approached, he clutched the biologist’s sleeve and repeated a single phrase: “The quarry, we’re the foundation. ”
Marcus was airlifted to Desert Regional Medical Center in Palm Springs. He weighed 103 pounds, down from a previous 176.
His medical report documented second-degree burns on his face, neck, and arms, feet wrapped in strips torn from his shirt with open wounds festering beneath, and severe electrolyte imbalances from prolonged malnutrition. The dead man was identified as Kyle Hernandez. The medical examiner’s report noted advanced mummification consistent with desert conditions, listing dehydration and exposure as the cause of death. Kyle had been dead for approximately fourteen to sixteen months.
The autopsy noted ligature marks around both wrists and ankles, and similar marks on Marcus. Most disturbing to investigators was the position in which the men were found. Marcus had apparently carried or dragged Kyle’s body with him for an unknown period before stopping at the rock formation. He refused to leave Kyle behind.
A nurse recorded him saying, “He said we had to stay together. We’re the foundation. ” When questioned further, he became agitated and would not elaborate. The attending physician noted signs of severe post-traumatic stress and possible delusional thinking, along with physical evidence of restraint and prolonged exposure.
Detective Sophia Ramirez of the San Bernardino County Sheriff’s Department was assigned as lead investigator. With fifteen years of experience in missing persons and homicide cases, she approached Marcus’ testimony with professional skepticism. In cases where one person returns and another doesn’t, her case notes read, “We have to consider all possibilities, including involvement in the death. ”
In his first formal interview on September 27, Marcus described a hiking accident.
Kyle had slipped on loose rocks, fallen about twenty feet, and hit his head. Marcus claimed he couldn’t move him, that they became disoriented, ran out of water, and wandered for days. “We promised, never separate,” he repeated. Forensic analysis contradicted this account.
The medical examiner found no evidence of a significant head injury or traumatic injuries consistent with a fall. Isotope analysis of bone samples indicated Kyle had survived for at least two months after their disappearance, not the few days Marcus initially claimed. The report noted unusual mineral concentrations in the bone tissue inconsistent with normal desert conditions. Marcus’ physical examination raised further questions.
The pattern of calluses on his feet indicated long-term confinement, not continuous walking. His vitamin D levels were far lower than expected for someone claiming to have been outdoors for eighteen months. His hands were soft, lacking the callousing that extended outdoor survival would produce. His medical record concluded that the physical evidence suggested long periods of confinement interrupted by limited movement.
As evidence mounted, Ramirez began considering Marcus a potential suspect and consulted the district attorney’s office regarding possible charges. On October 3, a critical piece of evidence changed the direction of the investigation. Lab analysis of material embedded under Marcus’ fingernails revealed traces of a specific cement mixture and industrial chemicals not naturally occurring in the desert. The compounds were identified as those used in mining operations and concrete manufacturing.
Investigators cross-referenced active and abandoned mining operations within a thirty-mile radius and identified the abandoned Sundown Quarry, a limestone operation that had closed in 2015 after its owner, Western Materials Corporation, declared bankruptcy. The quarry, located approximately seventeen miles from where the men were found, had been officially condemned but never properly secured. Multiple trespassing complaints had been filed since its closure, but follow-up had been minimal due to the remote location. On October 6, a team executed a search warrant at the quarry.
The main office showed evidence of recent habitation, with supplies, food stores, and a makeshift living area. Proceeding to the lower levels via a service elevator, officers discovered a modified storage room approximately two hundred feet below ground level. The room, measuring fifteen by twenty feet, had been outfitted with chains anchored to the concrete floor, a mattress, and rudimentary sanitation facilities. The elevator log, still functional on backup power, showed regular operation over the previous two years, with the last recorded descent dated September 14, 2024, nine days before Marcus was found.
DNA samples matched both Marcus and Kyle, confirming they had been held there. Additional samples indicated the presence of at least three other unidentified individuals. When confronted with this evidence, Marcus’ demeanor changed. The interview transcript notes periods of silence lasting several minutes.
“He knows I’m here,” Marcus finally said. “He’ll come for the others. ” He became unresponsive when asked to clarify, and the interview was terminated when his heart rate and blood pressure reached concerning levels. That night, a nurse found Marcus attempting to hide under his hospital bed, claiming he could see inside.
Hospital security footage showed no unauthorized persons entering the floor. On October 8, investigators conducted another interview with a trauma-informed approach. The psychiatrist recommended a room without windows and dimmed lights to reduce Marcus’ anxiety. Under these conditions, Marcus began to provide a more coherent account.
He and Kyle had found an old service road while mapping the canyon. A man who said he worked for the park service checking water sources offered them water and claimed there was a nearby spring they should document. The man, who called himself Richard, drove a truck with official-looking logos and led them to the quarry, claiming it overlooked a hidden spring. Once there, he offered them cold drinks that Marcus now believes were drugged.
They woke up in the underground room, chained. Richard told them they were lucky, that they had been chosen to be part of the foundation. According to Marcus, Richard had been living at the quarry for at least three years, claiming he was preparing for the collapse and needed strong specimens to form what he called the foundation. He kept the men chained but gave them enough length to reach each other, forcing them to sit back to back for hours and days at a time.
If one slumped or fell, Richard would shut off the air circulation. The room had no natural light, and Richard controlled their food, water, and air, making them recite three rules: the foundation must support itself, separation means death, and the foundation endures what’s built upon it. Approximately two months into their captivity, Richard brought two more people to the underground room. When they wouldn’t cooperate, Richard took them up in the elevator.
“We heard screaming,” Marcus said. “He came back alone. ” Kyle’s health deteriorated steadily from the limited food. An infection spread from his foot, bringing fevers.
Richard refused to bring medicine. In the winter of 2023, Richard brought a younger man Marcus knew only as Terry, who remained for two to three months before Richard took him away and never brought him back. Sometime in May or June 2024, Kyle became unresponsive. “I held him up for days,” Marcus recounted.
“Had to keep him upright or Richard would shut off the air. ” Marcus believes Kyle died in late June or early July 2024. He didn’t tell Richard, knowing he would take Kyle away. “Had to keep him with me, keep the foundation together.
” The autopsy confirmed Kyle had been deceased for approximately three months when found. In mid-September 2024, Richard didn’t come down. Food and water ran out. Marcus managed to free one hand by dislocating his thumb, an injury consistent with the medical report.
He took Kyle’s body with him. “Couldn’t leave him behind. That was the rule. Separation means death.
” He found the quarry abandoned, Richard’s truck gone. For approximately a week, Marcus carried and dragged Kyle’s remains across the desert, traveling primarily at night to avoid the heat, before exhaustion forced him to stop at the rock formation where the biologist found them. Based on Marcus’ description, investigators built a profile of the suspect: a white male in his forties or fifties, approximately six-foot-two, with graying brown hair and a full beard, speaking with a Midwestern accent, claiming to have worked as a structural engineer, with extensive knowledge of the quarry’s operations. On October 12, the FBI’s national database returned a match.
Richard Denton, fifty-three, was the former operations manager for Western Materials Corporation. He had been reported missing by his sister in 2020, shortly after being diagnosed with schizophrenia. His personnel file noted a disciplinary notice from 2014 regarding concerning statements about the structural integrity of society and preparation for societal collapse. On October 15, a statewide alert was issued.
Denton was found two days later near Lone Pine, California, sitting in his truck unresponsive. He offered no resistance but repeatedly stated, “The foundation has failed. Rebuild from the rubble. ” A search of the truck revealed detailed journals documenting his activities over the previous four years, including the abduction and imprisonment of at least seven individuals.
The journals outlined his foundational protocol, a delusional belief system centered on creating human support structures to prevent what he believed was an imminent societal collapse. A laptop contained videos documenting captivity and executions. Denton was charged with kidnapping, first-degree murder for Kyle’s death, false imprisonment, torture, and criminal confinement. He was diagnosed with paranoid schizophrenia with delusions centered on structural engineering concepts.
Investigators began cross-referencing missing persons reports with locations from his GPS data. On October 25, remains were found matching Terry, the younger man Marcus had described. On November 2, another search uncovered two sets of remains identified as tourists from Colorado reported missing in April 2023, their deaths consistent with Marcus’ account of hearing screams. Authorities have confirmed four deaths connected to Denton’s activities, with at least three more potential victims identified but not yet found.
Marcus Webb remains under medical and psychiatric care. He has regained weight and shown improved organ function, but psychologically his progress has been complicated. He experiences severe anxiety when separated from solid objects behind him and frequently positions himself with his back against walls. His psychiatrist’s notes document intrusive thoughts about maintaining the foundation and reports feeling unbalanced without pressure against his back.
In one session, Marcus told his mother, “It’s not that I believe him. I know it’s not real, but my body doesn’t know that. When there’s nothing behind me, I feel like I’m falling, like everything will collapse. ”
Richard Denton remains in custody at a secure psychiatric facility, deemed incompetent to stand trial.
He expresses no remorse, maintaining that his actions were necessary, and continues to speak of his victims as foundation elements rather than as people. The abandoned quarry has been secured. Investigators continue to search other locations identified in Denton’s writings. No charges were filed against Marcus Webb, with the district attorney citing overwhelming evidence that he was a victim of sophisticated psychological torture and conditioning.
As of December 2024, Marcus continues outpatient therapy while living with his parents. His treatment includes exposure therapy and EMDR, but his prognosis remains guarded. He continues to sleep on the floor with his back against a wall. In his most recent therapy session, he attempted to articulate the ongoing impact of his captivity.
“I know in my head that Richard was insane, that the foundation wasn’t real, but my body learned something different. Eighteen months of sitting back to back with Kyle, feeling his weight against me. It changed something fundamental. I still feel him there.
Still feel like I’m failing him when there’s nothing behind me. ”
His therapist’s notes conclude that recovery from such profound physical and psychological conditioning will be measured in years, not months. The patient’s body literally learned that survival depended on maintaining a specific position in relation to another human being.
Unlearning that lesson may be the work of a lifetime.