From a Piedmont Police Department notice on Oct. 20:
At 4:21 a.m. this morning, officers observed multiple wooden pallets on fire in the Ace Hardware parking lot on Grand Ave. Officers worked to put the fire out with fire extinguishers and were assisted by the Piedmont Fire Department.
Later in the morning, Halloween decorations were lit on fire in the 300 block of Wildwood and the 100 block of Sierra.
No one was injured and there was minimal property damage in all the events.
An unknown subject, pictured below, was captured on video at the involved locations.
If you have any information related to this subject or additional video of unusual activity related to these events, please contact detectives at (510) 420-3000.