Arizona fire investigators search for answers


On Wednesday, in a solemn tribute to Arizona’s 19 fallen firefighters, fire vehicles left behind by the 19 Granite Mountain Hotshots who died in the Yarnell Hill fire slowly processed down the highway. Meanwhile, investigators are listening to radio calls made by the firefighters and focusing on the violent 45 mph winds that whipped through the area on Sunday. NBC’s Miguel Almaguer reports.

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