Arson is not believed to be the cause of a fire that destroyed a 15-thousand-square-foot warehouse in the Sonoma Valley. The warehouse that caught fire after business hours ended on Friday night is believed to be a total loss because of structural damage and the intensity of the flames. The fire was reported at about 10:45 Friday night, but investigators think it actually started well before then, possibly as early as six p.m. The warehouse was occupied by an acoustics, lighting and design company.


