FBI analysis details final hours of family who died on remote Northern California trail

A sheriff's deputy stands near his marked pickup truck
A Mariposa County sheriff’s deputy walks in a distant space close to the place a household and their canine have been discovered lifeless Aug. 17. On Thursday, Sheriff Jeremy Briese introduced the outcomes of an FBI evaluation of the daddy’s cellphone that painted a clearer image of the household’s ultimate hours.
(Craig Kohlruss / Fresno Bee)

It was excessive summer season, and temperatures have been climbing swiftly on a distant path within the Sierra Nevada close to the small neighborhood of Mariposa.

Jonathan Gerrish and his spouse, Ellen Chung, knew they have been in bother.

Out of water, uncovered and overheating, they needed to ascend the rugged and steep Savage Lundy Path to return to their car on the Hite Cove trailhead. Their 1-year-old daughter, Aurelia “Miju” Chung-Gerrish, and canine, Oski, have been with them.

Gerrish took out his cellphone and typed a message.

11:56 a.m. Aug. 15: "[Name redacted] are you able to assist us. On savage lundy path heading again to Hites cove path. No water [over] heating with child.”

The plea by no means went by way of, stymied by the shortage of mobile reception within the space.

Gerrish’s tried message was amongst a number of key items of latest info launched Thursday by the Mariposa County Sheriff’s Workplace that shed additional mild on the household’s ultimate hours.

In October, Sheriff Jeremy Briese revealed that an investigation discovered the household and their canine had died of heat-related sickness and possible dehydration.

Within the two months that handed earlier than the sheriff’s announcement, theories abounded over the household’s deaths.

Bodily power and violence have been rapidly dominated out, as was poisonous fuel from an deserted mine shaft. Lightning strikes have been eradicated, and investigators thought of suicide and drug or alcohol use earlier than transferring on.

Some questioned whether or not water tainted by a poisonous algae bloom within the Merced River, which runs alongside a portion of the path, brought on their deaths. Toxicology and different checks finally dominated that out as properly.

In his October announcement, Briese mentioned he hoped FBI analysts may glean extra info from Gerrish’s telephone.

Virtually 4 months later, these solutions are in.

Knowledge extracted from the telephone allowed investigators to re-create the household’s path and timeline based mostly on GPS places, the Sheriff’s Workplace mentioned. These particulars “assist the findings of a warmth associated incident.”

Gerrish and Chung took a number of images all through the hike, deputies mentioned.

At 7:44 a.m. Aug. 14, the couple took a photograph and video a number of yards from the trailhead. A photograph of the path adopted at 8 a.m., and investigators discovered a photograph of the Merced River taken at 9:05 a.m.

Authorities discovered eight images of the river and of the couple taken from 9:35 to 9:39 a.m. At 10 a.m. and 10:16 a.m., they took two “selfie-style” household images. Two images of a creek or river have been taken at 10:29 a.m.

The ultimate picture saved on the telephone got here at 12:25 p.m. — a screenshot of their location from a smartphone path software.

Authorities additionally discovered a sequence of 5 tried telephone calls, not together with to 911, made between 12:09 and 12:36 p.m. As with the tried textual content message, not one of the calls went by way of.

“The cellphone knowledge outcomes have been the very last thing each the household and detectives have been ready on,” Briese mentioned. “The extracted info confirms our preliminary findings. I'm very happy with my workforce and our companion companies for all of the work they put in. Their dedication has allowed us to shut this case and reply lingering questions the household had, bringing them slightly peace.”

Gerrish and Chung have been skilled hikers who had not too long ago moved to Mariposa from San Francisco after falling in love with the world.

On Aug. 15, the household received off to an early begin. Their car was noticed round 7:45 a.m. headed towards the Hite Cove trailhead, elevation 3,800 toes.

It was 75 levels once they started the hike round 8 a.m., however temperatures climbed swiftly as they descended.

They’d gone about 4.1 miles, shedding roughly 2,000 toes of elevation, by the point they met the Savage Lundy Path — their route again to their car.

It was now 100 levels and climbing.

Savage Lundy, although quick, is thought to be difficult. Its south-southeast orientation exposes it to fixed daylight, and the 2018 Ferguson fireplace left little vegetation able to producing shade, Briese mentioned.

Temperatures reached as excessive as 109 by midafternoon. In some unspecified time in the future, the intense warmth and the steep climb grew to become an excessive amount of.

The following day, Aug. 16, the household’s babysitter arrived, however nobody was residence, Briese mentioned. Pals have been unable to achieve Gerrish or Chung and reported the household lacking at 11 p.m.

Shortly earlier than 2 a.m. the subsequent day, a sheriff’s deputy noticed the household’s car on the trailhead.

The our bodies of Gerrish, Chung, Miju and Oski have been discovered 7 ½ hours later, simply 1.6 miles from their automotive.

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