An anti-bank activist who faced more than a decade behind bars for using chalk to voice his protests against Bank of America was found not guilty of vandalism on Monday.

A jury found Jeff Olson, 40, not guilty on all charges, according to NBC San Diego.

Olson was charged with 13 counts of vandalism by San Diego City Attorney Jan Goldsmith for writing statements such as "No thanks, big banks" and "Shame on Bank of America" in front of Bank of America branches last year.

Mayor Bob Filner had described the prosecution of Olson as a waste of resources and "a stupid case."