Some artwork remains on the wall of a warehouse that caught fire Wednesday, Dec. 7, 2016, in Oakland, Calif. Investigators say the fire at thewarehouse in Oakland that claimed 36 lives progressed ... more 
Some artwork remains on the wall of a warehouse that caught fire Wednesday, Dec. 7, 2016, in Oakland, Calif. Investigators say the fire at thewarehouse in Oakland that claimed 36 lives progressed rapidly, trapping people on the second floor. Special agent in charge of the San Francisco office of the Bureau of Alcohol, Tobacco, Firearms and Explosives Jill Snyder said Wednesday people on the second floor of the warehouse did not know there was a fire on the first floor until it was well developed. (AP Photo/Eric Risberg) less 
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Associated Press | Photo By Eric Risberg
Wed, Dec 7, 2016 4:48 PM EST