According to The Fresno Bee,
The Mariposa County Sheriff’s Office shared a timeline of its investigation into how a Mariposa family mysteriously died this month along a hiking trail in Sierra National Forest, southwest of Yosemite National Park.
In a new update Thursday, the sheriff’s office said it ruled out weapons or “chemical hazards” along the Savage-Lundy Trail, where Jonathan Gerrish and Ellen Chung were hiking with their 1-year-old daughter and dog, as possible causes of death.
“ALL other potential causes of death remain,” the sheriff’s office said.
Here’s a timeline of events from the Mariposa County Sheriff’s Office and what’s happened with its ongoing investigation: