A 24-year-old man from Otay Mesa collapsed and died mountain biking this weekend during extreme weather conditions. “He was down, unconscious,” said Battalion Chief John Kremensky with Cal Fire San Diego. “It was so boiling. The temperature was 110 degrees," Kremensky continued. Kremensky, one of the first responders, said the mountain biker suffered from a severe heat-related illness. “He had a backpack and his clothes on. He had shorts, so we stripped him of his shirt and his backpack and started cooling measures. Then we carried him to a transfer vehicle and met with the medic unit ambulance.” The medical examiner’s office said they are still working to confirm his identity and have not released his name. FULL STORY: https://www.cbs8.com/article/news/local/mountain-biker-dies-in-east-county-heat/509-67b5e4e9-d646-4717-8f55-0f8eff7bb21f