On March 26, 2018, a tragic incident unfolded along California’s Highway 1 in Mendocino County when an SUV carrying a family plunged over a 100‑foot cliff. Among the deceased were two women—both aged 38—and their six adopted children, including Ciera Hart, a 12‑year‑old African‑American girl. The SUV came to rest upside down on a beach below the cliff. Initial reports noted the immediate deaths of several family members, with others missing and presumed drowned.
In the aftermath, the remains of Ciera Hart were not found at the crash site. Weeks later, on April 7, 2018, a body washed ashore near the crash location and, after DNA analysis, was positively identified on April 17 as that of 12‑year‑old Ciera Hart. Authorities clarified earlier confusion over her name and age—confirming her legal name is spelled "Ciera" and that she was indeed 12 at the time of death.
A forensic pathologist testified during the coroner’s inquest that the body of Ciera Hart was too decomposed to determine a precise cause of death, though it was widely presumed that her manner of death matched that of her siblings—namely, being in the vehicle and killed as a result of the plunge. Toxicology data revealed that Jennifer Hart, who was driving, had a blood‑alcohol level of. 102—well above California’s. 08 legal limit. Sarah Hart and several of the children—including those whose bodies were recovered at the scene—had high levels of diphenhydramine, a drug commonly found in over‑the‑counter sleep aids, although that was not determined to be the direct cause of death.
The case underwent a formal coroner’s inquest in 2019. After hearing testimony, a jury unanimously concluded that the deaths of Jennifer and Sarah Hart were suicides, while the deaths of all six adopted children—including 12‑year‑old Ciera Hart—were homicides, i.e., “at the hands of another person, other than by accident”.
No arrests were ever made in relation to Ciera Hart’s death. The authorities concluded the crashes were intentional, constituting a murder‑suicide carried out by the two adults, and no external suspect was identified or apprehended.