Hundreds of protesters clad in rain gear marched through downtown San Francisco on Friday evening - one of several events in a day of action organized by Occupy San Francisco and other allied groups on the second anniversary of the U.S. Supreme Court’s decision in Citizens United, which removed limits on how much money corporations could spend on political campaigns

Multiple blocks of California Street and Montgomery Street were blocked for hours by the demonstrations at two banks and the ensuing response by police in riot gear.

In the city’s financial district police arrested 18 people for trespassing, including a group that refused to move their human chain blocking an entrance to the headquarters of Wells Fargo. Another was arrested for allegedly grabbing a police officer’s baton.

On Twitter today, eye witnesses say that the San Francisco Sheriff’s Department was on the front police line at Occupy Oakland when the tear gas canisters were fired. In one video, a San Francisco Sheriff ESU team member Scott Bergstresser, the man with two stripes, is standing next to officer Ceciel Yambao. “Multiple copies of the videos used to ID Yambao, Bergstresser and officer Hugo Aparicio are on servers. Judging from height and size, the primary suspect at this time for shooting Scott Olsen at close range and for throwing a tear case canister into the crowd attempting to help, is Scott Bergstresser. 
Photo and video evidence
Let me remind everyone that this is not a man hunt and that Scott Bergstresser is merely a suspect at this time. This is simply information sharing so that this incident cannot get swept under the rug. 

On Twitter today, eye witnesses say that the San Francisco Sheriff’s Department was on the front police line at Occupy Oakland when the tear gas canisters were fired. In one video, a San Francisco Sheriff ESU team member Scott Bergstresser, the man with two stripes, is standing next to officer Ceciel Yambao. “Multiple copies of the videos used to ID Yambao, Bergstresser and officer Hugo Aparicio are on servers. Judging from height and size, the primary suspect at this time for shooting Scott Olsen at close range and for throwing a tear case canister into the crowd attempting to help, is Scott Bergstresser. 

Photo and video evidence

Let me remind everyone that this is not a man hunt and that Scott Bergstresser is merely a suspect at this time. This is simply information sharing so that this incident cannot get swept under the rug. 

Matt Ewing , founder of green tech companyRewire Labs , decided on Tuesday the Occupy Wall Street movement needed a technology boost. So he held a San Francisco Hackathon Friday night, aptly named “Occupy the Web, hacking for the 99 percent.”

Occupy movements targeting corporate corruption have spread outside of the its Occupy Wall Street origins. Indeed, the day of Ewing’s hackathon over 4,000 people marched in San Francisco under the same Occupy flag. Many have accused the protesters of having no core vales, no unity, but the developers that gathered Friday night disagreed.

More sources:

http://mashable.com/2011/10/14/occupy-wall-street-hackathons/

http://blogs.wsj.com/digits/2011/10/14/techies-unite-for-occupy-wall-street-hackathon/?