State fire officials on Friday shed new light on the causes of the deadly October wildfires in Northern California. And they are blaming PG&E equipment for many of them. Twelve of the fires were caused by electrical problems, officials said. The Cal-Fire findings cover The Redwood Fire in Mendocino County, which killed nine people, and the Atlas Fire in Napa County, which killed six. But the cause has not yet been announced for the blaze that caused the greatest loss of life and the most property damage -- the Tubbs Fire. We'll also hear about a report from the Sonoma County Board of Supervisors that says the county's emergency response was understaffed, its workers undertrained, and its emergency alerts not up to “public expectations.