On October 15th, Rainey returned to camp with a deer he harvested, and Sloan insisted that he take care of the meat instead of remaining in camp and watching over him. Unfortunately, when Rainey returned to check on his friend 40 minutes later, Sloan was unresponsive. Emergency crews arrived on the scene but couldn’t save him. According to emergency personnel, he died from altitude sickness—an ailment with a string of symptoms, such as dehydration and headaches, that can affect people differently depending on their elevation. However, in most cases, altitude sickness is rarely fatal since sufferers can recognize the signs and descend in elevation. “We had no idea,” Rainey said of Sloan’s diagnosis.