Indy Bay posted a link to the below YouTube video of the crowd at the scene (updated link, via SFist commenter snapshotist) immediately after yesterday's fatal shooting of a 19-year-old, allegedly armed fare-evader by SFPD officers in Bayview. This was the second such incident in less than a two weeks. (Warning: There's a pool of blood visible in the footage.)
The person who shot the video claims to have spotted in the footage a silver handgun, which was later picked up by someone who disappeared into the crowd. Updated: The gun can be seen 15 seconds into the video, which is marked in the updated video, via SF Citizen. Update: ABC7 reports that SFPD recovered the gun from the person who took it from the scene, via SFist commenter, Mike.
Indy Bay reports that witnesses at the scene said the victim "had his hands above his head as he was running away from police."
Additionally, SF Appeal reports that protestors gathered near 16th and Valencia last night between Midnight and 1 a.m. to protest the shooting. Officers in riot helmets facilitated the walking demonstration, and no arrests were made.