A wildfire burns homes in Yarnell, Ariz. on Sunday, June 30, 2013. An Arizona fire chief says the wildfire that killed 19 members of his crew near the town was moving fast and fueled by hot, dry conditions. The fire started with a lightning strike on Friday and spread to 2,000 acres on Sunday amid triple-digit temperatures. (AP Photo/The Arizona Republic, David Kadlubowski) YARNELL, Ariz. — An elite crew of firefighters trained to battle the nation’s fiercest wildfires was overtaken by an out-of-control blaze in Arizona, killing 19 members as they tried to protect themselves from the flames under fire-resistant shields. It was the most firefighters killed battling a wildfire in the U.S. in decades. The lightning-sparked fire, which spread to at least 2,000 acres amid triple-digit temperatures, also destroyed 200 homes and sent hundreds fleeing from Yarnell, a town of about 700 residents about 85 miles northwest of Phoenix. Residents huddled in shelters and bars, watching their homes ...