Here are two videos from our reporter Andrew Stelzer, taken on Wednesday night/Thursday morning, during the mass demonstration by Occupy Oakland.
In the first video, a black-clad protester smashes the window of City National Bank on Webster Street in Oakland. He then tries to walk away but is tackled by Zach Voorhees of San Francisco. The man is then held by other protesters, but was allowed to walk away, according to Stelzer.
Stelzer catches up to Voorhees and asks, "why did you do what you did?"
"This isn't about violence," says Voorhees. "This is about changing the system. And if people cause violence then they are going to disrupt the narrative and they are going to take focus away and they are going to give police the justification to crack down... Violence does not change. Non-violence is the most powerful weapon that we have as citizens...I don't know who these people are, but they have masks, they have black flags, and they're trying to smash up. And I'm going to stop that if I can because I want this march to remain peaceful."