Associated Press
A Northern California family found dead on a hiking trail near the Merced River died after they overheated and ran out of drinking water on a sunny August afternoon when temperatures reached 109 degrees Fahrenheit (43 Celsius) in the steep mountain terrain, authorities said Thursday. The deaths of Jonathan Gerrish, his wife, Ellen Chung, their 1-year-old daughter, Aurelia “Miju” Chung-Gerrish, and their dog, Oski, had baffled investigators. On Thursday, Mariposa County Sheriff Jeremy Briese said investigators concluded the family died from hyperthermia, a condition caused when a person's body temperature is dangerously high after exposure to hot, humid weather.