Question: did all of the granite mountain hotshots die

Answer: No, The lone survivor from the 20-man crew was 21-year-old Brendan McDonough. He had been serving as a lookout when the fire threatened to overtake his position. McDonough was hiking out on foot when he was located by Brian Frisby, the Superintendent of the Blue Ridge Hotshots, who was monitoring the radio communications between McDonough and the Granite Mountain IHC Captain. Frisby and McDonough moved the crew's vehicles to a safer location, which they were doing at the time of Granite Mountain crew entrapment. After moving the vehicles, Frisby and other members of the Blue Ridge Hotshots attempted to rescue the entrapped Granite Mountain Hotshots but were forced back by the intense flames and heat of the fire. Driving through the streets of Yarnell, the Blue Ridge Hotshots evacuated several residents who had failed to evacuate earlier. Frisby and his assistant eventually made their way to the entrapment site and were some of the first individuals to find the deployment site and the remains of the Granite Mountain crew.