I would bet on some Arson, mostly nature.Is this whole mess intentional? I don't know the area well enough to know if it's just the wind spreading embers everywhere.
I understood that many of these massive mansion for the rich can't even get fire insurance due to the size, price and the location and if you do get insurance it costs more than the house.I bet all of our insurance goes up - yay!
I want to point out that Canada is there helping and willing to send more help to our American friends.If L.A wasn't half assing the fire fighting efforts we would just invest in about 100 of these planes and have like raytheon make them they are in el segundo along with several plane builders in L.A county