Authorities called in a mobile DNA lab and anthropologists to help identify the dead as the search went on for victims of the most destructive wildfire in California history. The overall death toll from the outbreak of fires at both ends of the state stood at 25 Sunday and appeared likely to rise. The worst of the blazes was in Northern California, where flames reduced the town of Paradise, population 27,000, to a smoking ruin days ago and continued to rage in surrounding communities.