Recovered vehicle debris and personal items confirm that an SUV seen plunging into a storm-swollen Northern California river belonged to a family that disappeared last week in the same county as the Hart family, authorities said Thursday.
CHP said the Hart family SUV's on-board computer showed the vehicle stopped at a gravel pullout and then accelerated over the cliff, a distance of about 70 feet.
But their three other children - Devonte, 15, Hannah, 16, and Sierra, 12 - are missing, officials said.
She says the six kids were regularly punished for common childlike and adolescent behavior, such as laughing too loudly.
Farther south along the Mendocino County coast, authorities continue to look for members of the Hart family, missing since an SUV made a deadly and possibly intentional plunge off a towering ocean bluff along the Pacific Coast Highway last month.
Sarah Hart reportedly also had diphenhydramine in her system.
"Sarah Hart and two of the children had a positive toxicology finding in their blood for Diphenhydramine, an active ingredient in Benadryl", the MCSO press release states.
Jennifer Hart had an alcohol level of 0.102, according to a news release from the Mendocino County Sheriff's Office, citing a preliminary toxicology report.
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The Hart family did not wear seatbelts at the time of the crash.
A neighbor of the Harts in Woodland, Washington, had filed a complaint, saying the children were apparently being deprived of food as punishment.
The crash scene, about 322 km north of San Francisco, was discovered by a passing motorist on March 26.
However, a body was recovered on April 7 in the "immediate vicinity" of the crash site, north of Westport, Calif. off of Highway 1.
In 2010, Sarah Hart pleaded guilty to misdemeanor domestic assault involving one of the children, according to Douglas County, Minnesota, court records.
Below is the famous photo of Devonte Hart. "We played it out for almost a week, then we decided there was no end to it, so we probably needed to get professional help".
Authorities have said that data from the vehicle's software suggested the crash was deliberate, though the California Highway Patrol has not concluded why the vehicle went off an ocean overlook on a rugged part of coastline.