For months, the death of a woman found partially unclothed along a remote Big Sur hiking trail fueled suspicion, fear and speculation.

Her body was discovered near Sykes Hot Springs.

She had visible injuries.

Unusual marks on her neck led some hikers to fear she had been attacked.

Now authorities say the mystery has been resolved.

Joanna Ruth Shields, a 37-year-old woman from Carlsbad, died from probable seizures connected to alcohol withdrawal and long-term alcohol-use disorder, according to the Monterey County Sheriff’s Office.

Her death was classified as natural.

Investigators said they found no evidence that Shields had been assaulted, strangled or killed by another person.

The conclusion ends months of questions surrounding one of the most unsettling discoveries made in the Big Sur wilderness this year.

Shields was found on April 9 near the Pine Ridge Trail, close to the popular Sykes Hot Springs area.

Her body was lying beside shallow water.

Clothing, sandals and a water bottle were located nearby.

The unusual scene immediately raised concerns that something violent may have happened.

A wound was visible above her eye, while markings on her neck appeared suspicious to some of the people who encountered the scene.

But the final forensic examination found a very different explanation.

The injury to Shields’ forehead was determined to be superficial and did not contribute to her death.

The marks on her neck were attributed to insect activity after death, not strangulation.

“Investigators found no evidence during the forensic examination or throughout the investigation to indicate that Ms. Shields was the victim of a crime,” authorities wrote.

That conclusion rules out homicide and provides long-awaited answers to Shields’ family.

But the coroner’s findings also revealed a deeply painful struggle that had unfolded before her final hike.

According to investigators, Shields had a history of alcohol dependence and had previously experienced seizures during withdrawal.

Alcohol withdrawal can become medically dangerous when a person who has been drinking heavily suddenly stops.

In severe cases, the nervous system can become dangerously overactive, causing confusion, severe shaking or seizures.

The supplied report does not establish exactly when Shields last consumed alcohol or whether anyone knew she was experiencing withdrawal symptoms while in the wilderness.

But the coroner concluded that a withdrawal-related seizure was the most probable cause of death.

The location may have made the situation especially dangerous.

Pine Ridge Trail passes through rugged and isolated terrain.

Cell service can be limited.

Emergency assistance may be difficult to reach quickly.

A sudden medical crisis in such an environment can become fatal even when the person has survived similar episodes before.

Investigators also learned that Shields had faced serious emotional and psychological difficulties in the months before her death.

Her family told detectives that she had stopped taking prescribed psychiatric medication without medical supervision around late 2024.

They said her condition worsened afterward, with periods of paranoia, unstable behavior and housing difficulties.

These details help explain the vulnerability she may have been experiencing, but they should not define her entire life.

Shields was much more than the circumstances of her death.

Friends and relatives remembered her as energetic, compassionate and deeply passionate about the people and activities she loved.

She was an avid skateboarder and worked within the skating industry.

Jeff Anning, the owner of Evolve Skateboards, where Shields had once worked, remembered her as someone who brought extraordinary enthusiasm into every room.

“She just had so much energy,” he said.

“She was just so passionate, so kind, and she was always, you know, putting other people first.”

Her family described her with similar warmth.

Shields’ sister, Claudia Robinson, said the loss had left relatives in different stages of grief as they tried to understand what had happened.

She called Shields “a bright, radiant light” whose absence would affect countless people who had encountered her spirit.

Another family member described the grief as “the saddest sadness I have ever known.”

Those words capture the reality behind the headlines.

What initially appeared to be a possible crime was ultimately a medical tragedy involving a woman whose life had become increasingly difficult.

The disturbing circumstances in which she was discovered drew public attention.

But the final report points away from violence and toward a quieter danger—one that often remains hidden until it becomes an emergency.

Alcohol withdrawal is sometimes misunderstood as merely uncomfortable.

In severe cases, it can be life-threatening.

People with a history of withdrawal seizures may require professional medical supervision when stopping alcohol use.

The danger is especially serious when someone is alone or far from emergency care.

Shields’ reported history made her particularly vulnerable.

Authorities did not suggest that anyone else caused her death.

They also found no indication that the injuries visible on her body resulted from an attack.

Scratches and bruises can occur during falls, seizures or movement through rough wilderness terrain.

The forensic evidence did not support the fears that followed the initial discovery.

Monterey County Sheriff-Coroner Tina Nieto expressed sympathy for the family and said she hoped the investigation would offer some measure of closure.

“Our thoughts and prayers remain with Joanna’s family and loved ones,” Nieto said.

She also thanked detectives, forensic staff and public-safety personnel for conducting what she described as a thorough and compassionate investigation.

Closure, however, is not the same as relief.

The family now knows that Shields was not murdered.

But they must still confront the devastating knowledge that she died alone during a medical crisis.

The findings also challenge the way mysterious deaths are often discussed online.

Initial details can quickly generate theories of violence, conspiracy or criminal activity.

Images and descriptions circulate before forensic examinations are complete.

Rumors harden into assumptions.

In Shields’ case, the head injury and marks on her neck appeared alarming.

The autopsy ultimately showed that neither indicated homicide.

That distinction matters—not only for the integrity of the investigation, but for the dignity of the person who died.

Shields should not be remembered merely as “the naked hiker” found in Big Sur.

She was a daughter, sister, friend and member of the skating community.

She was remembered as generous, joyful and full of energy.

She also faced serious struggles that became overwhelming.

Her final hours may never be reconstructed completely.

Investigators cannot know every decision she made before reaching the trail or precisely how the medical crisis unfolded.

But they say the evidence provides a clear conclusion:

No attacker was responsible.

No hidden crime was uncovered.

A woman in distress suffered a fatal medical event in one of California’s most isolated landscapes.

The mystery has ended.

The tragedy has not.