Ah, arson college.
Where do you get the idea that this particular fire is arson?
Arson is very seldom a high tech crime. When it is, it’s easier to trace, though arson, generally speaking, is difficult to detect and even more difficult to solve and prosecute.
The use of arsonists is presaged by the arrival in a particular area of hippy and antifa types.
Their goal is to burn out the locals, so that NGOs, like American Rivers, The Nature Conservancy, others, can move in, buy the property cheap, sell some to the Feds to cover costs and expenses, and the rest to their members to generate the profit.
This scam has been going on in the rural West for the past 25 years at least.