New details emerge in hiker's death on South Mountain

details coming up tonight after a hiker dies on South Mountain. This happened saturday afternoon on the national trail and during an extreme heat heat warning. Jacob Luthi joins us live with the latest tonight. Yeah brian, police say that they received a call regarding a missing person around five yesterday evening. That caller saying that Richard Fletcher had gone on a hike, had left around five in the morning and had not returned. Now that caller also reported that they had lost contact with Fletcher around two p.m. When his phone had died, officers found his vehicle parked near the trailhead on East Pima Canyon Road. Now, a cyclist later discovered the man unresponsive on the trail. Firefighters responded and pronounced him dead at the scene. Phoenix Air Rescue then airlifted his body from the mountain this morning while the medical examiner will determine the official cause of death. Investigators say the evidence so far points to a heat related or other medical emergency. Phoenix Fire says if you're going to be working or exercising in this heat, preparation is imperative. Please take break every 45 minutes, hydrate the night before we are. Firefighters do the exact same thing before they come into their shifts. That hydration starts the night before. Um, real, real imperative is that, you know, listen to your body now. Initial reports are that there were no obvious signs of foul play or trauma right here at the National Trail. It remains closed from 8 to 5 p.m. As well as other trails on Camelback Mountain here at South Mountain as well as Phoenix Mountain Preserve. Again, that is extended until tomorrow because of this heat warning. That's the latest right here in Phoenix.