Crime and Public Safety | Get browser notifications for breaking news, live events, and exclusive reporting. Our hearts will never forget the beautiful lives of Jonathan, Ellen, Miju and of course, Oski, the statement said. We have a whole family wiped out and for what? Sheriff Vern Warnke, of Merced County, announced Wednesday that the family members, who were kidnapped at gunpoint from their trucking business in central California, have been found dead. Their vehicle, a Ford truck, was found near the Sierra National Forest gate leading to Hites Cove, the sheriff's office said. The last person known to see the family alive was their babysitter on Aug. 13, two days before the hike. Within three hours it would soar to 99 degrees, and by the afternoon it would peak at 109. Its hard to give people a very specific number with water, says Trimble, though most hiking experts say about 16 ounces or a half liter per hour per person, for moderate temperatures and terrain. The Associated Press contributed to this report. "Heat-related deaths are extremely difficult to investigate, and we want to thank you all for being patient with us," Briese said during a press conference. Remote hiking area where Northern California family was found dead treated as a hazmat site, Solo hikers keep going missing. In October, Mariposa County Sheriff Jeremy Briese closed the case, announcing that the husband and wife and their daughter died of hyperthermia and probable dehydration. The family members were taken from their business in Merced, a city of 86,000 people about 125 miles (200 kilometers) southeast of San Francisco in the San Joaquin Valley, Californias agricultural heartland. Chung was also carrying a 2.5 liter Osprey Hydraulics LT water bladder with only a few remaining drops of water, which detectives tested. The familys dog, Oski, an Aussie-Akita mix, was also found dead. Investigators are still waiting for toxicology reports and cell phone data. Updated to include drought zones while tracking water shortage status of your area, plus reservoir levels and a list of restrictions for the Bay Areas largest water districts.