RELATED: Police say Contra Costa County car fires were arson and likely linked
Investigators say this appears to be the work of a serial arsonist. No one has been hurt by any fires.
Here's a timeline of the car fire events:
RELATED: Investigation continues into string of suspicious car fires in East Bay
Monday, May 8, 2017- First car fire reported in Martinez. The car was found torched in the driveway of a home.
Wednesday, May 10, 2017- A very similar scene, a car was found torched in Walnut Creek, then 15-minutes later another torched car was found in Martinez.
Thursday, May 11, 2017- Two more destroyed cars were found in Brentwood. Only, in this case, the flames spread to a nearby home damaging a garage and the contents inside.
Friday, May 12, 2017- Yet another set of two cars were torched one in Lafayette, the other in Walnut Creek.