NEW : Debate over whether it was human-caused -- intentional or unintentional . Deadly wildfire has charred over 140,000 acres in Southern California . See images of the wildfire » . Comment: Residents fled from 10,000 homes since fire started last Wednesday .
NEW : Debate over whether it was human-caused -- intentional or unintentional . Deadly wildfire has charred over 140,000 acres in Southern California . Comment: Residents fled from 10,000 homes since fire started last Wednesday .