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 / Updated By Kiara Alfonseca 
  
 The car crash off a California cliff presumed to have killed all eight members of a family from Washington state — including a teenage boy who gained attention in a viral photo — appears to be no accident, authorities said Sunday. 
  
 The crash one week ago in Mendocino County may have been intentional based on the absence of skid marks, data from air bag controllers and other information, the California Highway Patrol said. 
  
 A CHP spokesman told reporters that the GMC Yukon's on-board computer indicated that the vehicle stopped and then suddenly accelerated off Highway 1 — plunging about 70 feet down to the rocky shoreline of the Pacific Ocean. 
  
 "Pure acceleration all the way," said CHP spokesman Cal Robertson. 
  
 He confirmed reports that the speedometer was at 90 mph at the time of the crash, but he said it could have moved during impact or accidentally been manipulated during the investigation. 
  
 "Certainly, that does not mean the vehicle was going that fast," Robertson said. 
  
 Acting Assistant CHP Chief Greg Baarts said a full vehicle inspection had yet to be completed, but he told reporters that the "complete lack of ... physical evidence" of an accident, like skid marks, was striking. 
  
 The bodies of parents Jennifer and Sarah Hart, both 38, and their children Markis, 19, Jeremiah, 14, and Abigail, 14, were found at the site. 
  
 Three other children — Devonte, 15, Hannah, 16, and Sierra, 12 — have not been found, but are presumed dead, officials said. Devonte, a young black boy, was photographed in 2014 crying in the arms of a white police officer during a protest in Oregon over the police shooting of an unarmed black teenager in Ferguson, Missouri. 
  
 Portland police Sgt. Bret Barnum, left, hugs Devonte Hart, 12, at a rally in Portland, Oregon, where people had gathered in support of the protests in Ferguson, Missouri, over the shooting of Michael Brown. Johnny Nguyen / AP file 
  
 "Three children are still missing and could be in the ocean," Baarts said. "We are trying to determine a timeline, path of travel, and if there were any stops." 
  
 He told NBC News that California authorities were "tirelessly searching for the missing children along the coastline," while authorities in California and Washington were "conducting interviews and attempting to establish a timeline and routes of travel in an effort to rule out any other possibilities." 
  
 According to neighbors and court records, the family has had troubles in the past, carrying over to a recent investigation into abuse or neglect with the Washington Department of Social and Health Services. 
  
 Sarah Hart was charged with a misdemeanor offense of domestic assault against her daughter Abigail in 2011, and neighbors claimed that Devonte would often ask them for food. He said his parents would withhold food as punishment. 
  
 Devonte Hart with his family at an annual celebration of the movie 'The Goonies' in Astoria, Oregon, in 2014. Thomas Boyd / The Oregonian via AP 
  
 The household had previously been visited by Child Protective Services, and neighbors claimed to have called the agency again to report on the family on March 23, before the Harts left on the trip that resulted in the fatal crash. 
  
 The state's Department of Social and Health Services said in a statement that the children who were killed would be identified "as potential victims of alleged abuse or neglect." 
  
 The Clark County Sheriff's Office obtained a search warrant Thursday to retrieve items like computers, credit cards and bank statements to help determine a probable cause. Baarts said a felony may have been committed. 
  
 In addition, no suicide note was found at the home. ||||| In this March 28, 2018 aerial file image from Alameda County Sheriff's Office drone video courtesy of Mendocino County shows the pullout where the SUV of Jennifer and Sarah Hart was recovered off the... (Associated Press) 
  
 MENDOCINO, Calif. (AP) — An SUV carrying a large, free-spirited family from Washington state accelerated straight off a scenic California cliff and authorities said the deadly wreck may have been intentional. 
  
 Information pulled from the vehicle's software shows it was stopped at a flat, dirt pull-off area before it sped off the steep rocky face and plunged 100 feet, said Capt. Greg Baarts with the California Highway Patrol Northern Division. Speaking at an evening news conference Sunday night, Baarts said the electronic information combined with the lack of skid marks or signs the driver braked led authorities to believe the crash was purposeful. 
  
 Five members of the Hart family were found dead. The search continued for three more children believed to have been in the vehicle when it went over a coastal overlook and landed on rocks in the Pacific Ocean below. The missing children may have been washed out to sea, authorities say. 
  
 "This specific location is very difficult to search because the ocean currents and tides are strong, it's unpredictable, and the murkiness of the water makes it difficult to see," said Capt. Greg Van Patten, a spokesman for the Mendocino County Sheriff's Office. 
  
 Known as the Hart Tribe, the multiracial family of two married women — Sarah and Jennifer Hart — and six adopted children often took spontaneous road trips to camp and hike and traveled to festivals and other events, offering hugs and promoting unity. 
  
 Authorities don't know exactly when the wreck took place. A passing motorist discovered the vehicle on March 26, three days after social service authorities in Washington state opened an investigation apparently prompted by a neighbor's complaint that the children were being deprived of food. Authorities believe at least one felony was committed but Van Patten declined to specify. 
  
 Well before the wreck, Sarah Hart pleaded guilty in 2011 to a domestic assault charge in Douglas County, Minnesota, telling authorities "she let her anger get out of control" while spanking her 6-year-old adopted daughter, court records show. 
  
 The two women, both 38, were found dead inside the SUV, while three of their children — Markis Hart, 19, Jeremiah Hart, 14, and Abigail Hart, 14 — were discovered outside the vehicle. Searchers were looking for Hannah Hart, 16; Sierra Hart, 12; and Devonte Hart, 15. 
  
 Devonte drew national attention after the black youngster was photographed in tears, hugging a white police officer during a 2014 protest in Portland, Oregon, over the deadly police shooting of a black man in Ferguson, Missouri. Devonte was holding a "Free Hugs" sign. 
  
 Two weeks ago, Bruce and Dana DeKalb, next-door neighbors of the Harts in Woodland, Washington, called state Child Protective Services because Devonte had been coming over to their house almost every day for a week, asking for food. 
  
 Dana DeKalb said Devonte told her his parents were "punishing them by withholding food." The boy asked her to leave food in a box by the fence for him, she said. 
  
 Social service authorities opened an investigation, and a state caseworker went to the house on March 23 but didn't find anyone home. The agency had no prior history with the family, said Norah West, a spokeswoman with the Washington Department of Social and Health Services. 
  
 On Thursday, authorities in Washington state combed through the family's home for information. The Clark County Sheriff's Office said deputies were looking for bills, receipts or anything else to shed light on why the family left and other circumstances related to the trip, KGW-TV reported. 
  
 "To the best of my knowledge, there was not a suicide note found at the residence," said Baarts, who added that authorities have been interviewing friends and family members of the Harts. 
  
 "There have been red flags," he said, but did not elaborate. 
  
 Van Patten said he was not aware of any other evidence of abuse. 
  
 Family friend Max Ribner last week took issue with the notion it was something other than a tragic accident. The couple adopted the six children, many of whom came from "hard backgrounds," he said. "They transformed these kids' lives." 
  
 ___ 
  
 Associated Press writer Michelle A. Monroe contributed to this report. |||||
Output:
The crash that wiped out a large family traveling along California's Pacific Coast Highway last week may have been murder-suicide, not an accident. NBC News reports that police say they've uncovered disturbing signs that the vehicle carrying married couple Jennifer and Sarah Hart and their six adopted children was driven over a cliff intentionally. Capt. Greg Baarts with the California Highway Patrol said Sunday night that information from the 2003 GMC Yukon's software shows that it was stopped at a gravel pullout around 70 feet from the cliff's edge before it accelerated over the edge and plunged around 100 feet, the AP reports. He said the SUV's speedometer was pinned at 90mph when it went over the cliff. Baarts said no suicide notes were found in a search of the family's home. The family had driven more than 500 miles south from their Washington state home. Baarts told reporters that the electronic data and the fact that there were no skid marks or other signs that the driver tried to brake has led investigators to believe the crash was deliberate. The bodies of the parents, both age 38, and Markis, 19; Jeremiah, 14; and Abigail, 14, were found at the site where the SUV hit ocean rocks. Still missing are Hannah, 16; Devonte, 15; and Sierra, 12. Authorities believe they weren't wearing seat belts and may have been washed out to sea. Baarts said police could "be looking at a variety of felony crimes" to investigate, but at this point, they "can't tell you definitively what crime was committed," reports the Washington Post. (The Harts were being investigated for alleged child abuse and neglect.)