An auto repair shop next to where I work burned the same way a few weeks ago. Mechanic was changing a leaky fuel pump and a spark ignited the fuel. The mechanic also suffered severe burns, but recovered. They lost half the shop, which was pieced together with two buildings. Hope Jay continues to improve. One of the good guys.
Mechanic should know to remove battery cable.
At the Volkswagon dealer in our town the guy went out to the designated smoking area out back. There were several drums there and from the photo it looked like they used them to set there coffee cups on, etc.
I guess somebody had moved a new drum over there. It was empty of liquid but still had the fumes inside of it.
BOOM.
From the photo only two of the five or six drums was knocked over, and no fire damage that I could see. Hopefully the worker survived. The only news that I can find is from the day of the accident.