Friends and relatives of a couple whose bodies were found in Joshua Tree National Park say they believe the two got lost while hiking in the sprawling desert park and struggled in the searing heat with little food or water before they died in a “sympathetic murder-suicide.” Rachel Nguyen, 20, and Joseph Orbeso, 22, had been missing for nearly three months after going for a hike in late July and failing to return to their bed-and-breakfast.