A woman was drunk when she drove her large family off a Northern California cliff last month and her wife and several children had large amounts of a drug in their systems that can cause drowsiness, authorities said Friday.
All eight people in the vehicle are presumed dead in the accident, according to authorities.
Police say Jennifer Hart had a blood alcohol level of 0.10, which is over the legal limit, when killing her family. It has not been determined in the third child.
Below is the famous photo of Devonte Hart.
A vehicle owned by the couple-Sarah and Jennifer Hart, both 38 - was found at the bottom of a cliff that overlooks the Pacific Ocean in California's Mendocino County on March 26.
The California Highway Patrol has also said the crash is thought to have been intentional.
The Hart family did not wear seatbelts at the time of the crash. Carpenter said "a lot about this case is unusual ... baffling nearly". But investigators are still trying to determine why they stopped in Naselle, which added an hour and a half to their trip, and whether they contacted anyone.More news: Summary of BHP Billiton Limited (NYSE:BHP) Ratings
The bodies of three of the Hart's children were not found in the wreckage. The bodies of three of their children - Markis, 19, Jeremiah, 14, and Abigail, 14 - were found nearby.
The Harts moved to a home in Woodland, Washington, in mid-2017, neighbors said.
A body was found last week near the crash site that officials said may be one of the three missing children, but the body has yet to be identified.
And authorities have said social services officials in OR contacted the West Linn Police Department about the family in 2013 while they were living in the area.
Investigators initially said they discovered the body of a child, but later said a woman's body was found.
Personal belongings of the four members of the family from Santa Clarita in California, who were believed to be travelling through Humboldt and Mendocino County on US-101 while on a vacation, were also found by the team over a two-day period on Tuesday and Wednesday, officials said. But after spending two weeks with the family Argyropoulos said she noticed kindness, love and respect for the children was largely absent.
The family was officially reported as missing to the San Jose Police Department on April 8.