My wife has family there, and yes, he's only accused of leaving a campfire, not setting multiple fires, and the last I heard, the investigation is not complete and they're not certain that his abandoned campfire actually resulted in anything bigger.
Another of the fires was started when PG&E restored power to a line that was still down, a major screw-up, and sparks started a fire. Other fires were started when high winds knocked down limbs or trees, which then took down power lines in other places and started fires. This was not one fire. It was multiple fires, exacerbated by high winds not normally seen in this area and heavy amounts of dried vegetation (grasses/scrub) that grew as a result of heavy rains in the spring, but had now dried out.
Hey rey, read IYAS9YAS response and learn how to make an informational post that backs up your position with real data. If it were not for this post I would not take your claim seriously, which I do now. Please don’t take this post as an insult, it just helps everyone when as much light as possible is shed where needed.(damn I bet I sound like a pompous ass)