While we can't say for certain that this morning's most recent vehicular fire is the work of the carsonist -- the lunatic who immolated SF cars earlier this year -- they do have a lot in common. Last night, for example, "[a]uthorities responded to a car fire Tuesday morning in unincorporated Contra Costa County, close to where 3 vehicle fires were reported over the weekend and at least 10 were reported last week."

CBS 5/BCN reports, "authorities were told by a witness that a male wearing black sweatpants and a gray hoodie was seen fleeing the area."

This brings the total number of autos torched in the area in the last week to 15.