The Gerrish–Chung Family Found Dead Near Devil’s Gulch
On August 16th, 2021, the bodies of John Gerrish, Ellen Chung, their one‑year‑old daughter Miju, and their dog Oski were found on a remote trail near Devil’s Gulch in the Sierra National Forest, just south of the Yosemite border.
John Gerrish grew up in Lancashire, UK, worked for Google in London and later San Francisco, and at the time of his death was a software engineer for Snapchat. Ellen was a yoga instructor and a graduate of the University of California, working toward a master’s degree.
This was a young, educated, outdoors‑savvy family. Their deaths remain one of the strangest modern cases in California wilderness history.
Gerrish Family Missing From Home
On the morning of August 16th, the family’s nanny arrived at their home and found:
- no family
- no truck
- no note
Odd, but not immediately alarming.
By late afternoon, John’s employer contacted the nanny—John had not shown up for work. This was extremely out of character. By 11 PM, with still no word, the nanny reported the family missing.
Police began searching immediately. Around 2 AM, a deputy located the family’s truck at the Hites Cove Trailhead. Overnight searching produced nothing. A larger coordinated search began at first light.
At 10 AM on August 17th, the family was found. All deceased.
The Scene: John Gerrish Found Dead
This is where the case becomes deeply unsettling.
John was found sitting upright against a tree, eyes reportedly wide open, with:
- Miju beside him
- Oski beside the child
Ellen was found uphill, above the rest of the family.
The arrangement is bizarre. The positions are unnatural. And the lack of trauma is inexplicable.
Unexplained Deaths
Initial autopsies found no obvious cause of death. A necropsy on the dog was also inconclusive.
Speculation exploded:
- toxic mine gases
- poisonous algae
- carbon monoxide pockets
- lightning strike
- heat stroke
- foul play
Investigators later ruled out:
- chemicals
- weapons
- violence
- carbon monoxide
- abandoned mine gases
The bodies showed no signs of struggle or external trauma.
John’s posture—sitting upright, not clutching his daughter—suggests he was not reacting to a threat. If he had been, instinct would dictate holding the child.
The fact that:
- the child
- the dog
- and John
were all found together, neatly positioned, which strongly suggests they were placed that way—likely by Ellen, who was found higher up the slope.
Her position could indicate she was trying to reach higher ground, perhaps for air, visibility, or escape from something she didn’t understand.
There is no evidence of another person. There is no sign of pursuit. There is no sign of panic.
And yet the entire family died.
The Phone That Stayed in the Pocket
John’s phone was found in his pocket.
There is no reception in that area, but in any medical emergency—heat stroke, dehydration, collapse—people instinctively reach for their phone even if they know it won’t work.
The fact that the phone remained untouched suggests:
Whatever happened was sudden, non‑violent, and incapacitating.
Something that gave no time to react. Something that didn’t trigger fear. Something that shut the body down before instinct kicked in.
Park Trail Closed
On September 1st, 2021, the Forest Service closed the Merced River Recreation Site due to “unknown hazards” near the Savage Lundy Trail.
This closure lasted until September 26th.
Theories focused on toxic algae, but experts like USC biologist David Caron cast doubt:
Freshwater bacteria can be dangerous, but it would take extremely high concentrations to kill humans rapidly.
And certainly not an entire family and a dog simultaneously.
Vanished.us Says
Three humans and a dog dying at the same time, with no trauma, no struggle, and no warning, is strange enough.
But the positions of the bodies—three together, one uphill—are deeply unsettling.
When I picture this scene, I can almost see Ellen climbing the slope, trying to escape or get help, while John sits down with the child and dog, unaware that something catastrophic is already happening.
What that “something” is… no one has ever explained.
Heat? Toxins? Invisible environmental hazard? A physiological chain reaction? Something we haven’t identified yet?
This case is one of the most disturbing modern wilderness deaths on record. The land kept all four of them—and gave back no answers.