ignition

He was arrested in his family’s Norco home, around 20 miles from the ignition site, Sept. 10.

Investigations into the cause of the fire are ongoing and have not concluded that Edison’s equipment sparked the blaze, Pizarro said, but investigators have not identified any other possible sources of ignition.

The other idle transmission tower, known as M16T1, or Tower 208 and located at the suspected point of ignition, was removed on Wednesday.

It said when “homes are constructed using the latest building and energy codes along with the best science related to wildfire home ignitions … the neighborhood and individual property owners will increase their insurability.”

He added that, while the fire ignition source was unknown, "it certainly does seem to be an oxygen-fed fire".