The death of the California family on the hike remains a mystery – NBC Los Angeles

Authorities say they are still investigating the mysterious death of a Northern California family and their dog who were found in a remote hiking area nearly two months ago.

The bodies of John Gerrish, his wife Ellen Chung, their one-year-old daughter Miju, and their dog were found on August 17 on a hiking trail near the Merced River in the Sierra National Forest. A family friend reported her missing.

Investigators so far found that her death was not caused by a weapon or other weapon, lightning strike, carbon monoxide, carbon dioxide, cyanide exposure, illegal drugs, alcohol, or suicide.

The Mariposa County Sheriff’s Office said Thursday that officials are working with toxicologists, environmental specialists, the FBI and other experts, but “the cause of death remains undetermined.”

“All other possible causes of death remain,” said the sheriff’s office without going into detail.

Although many toxicological reports have been finalized, authorities are still waiting for “some key results” but there is no timeline for them, the department said.

An early theory that has not been ruled out is whether high levels of detected toxic algae played a role.

Investigators have received results from water samples in the area but are pending other test results to see if the levels were high enough to cause the deaths, said Kristie Mitchell, a spokeswoman for the sheriff’s office.

Authorities also sent the couple’s phones and computers to the FBI, she said.

“We didn’t rule out much other than what we listed,” said Mitchell. “Everything else is still an option.”

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