The video shows Don Silva pushing (multiple times) people at the Day Laborer Center in Harbor City. Additionally, if you look at the videos posted by Dennis (AP77) it is clear SOS was the perpetrator of the violence.
Video of Don Silva pushing:
http://www.youtube.com/watch?v=gt-dNnvvCjs and
http://www.youtube.com/watch?v=494MPzSHv2M The rest of the videos from americanpatriot77
Part 1
http://www.youtube.com/watch?v=8-2FaDWZsd0 Part 2
http://www.youtube.com/watch?v=YaZ_ew-ejiA Part 3
http://www.youtube.com/watch?v=HTwJvt_AFRM Part 4
http://www.youtube.com/watch?v=6-4Axr5bGWw Part 5
http://www.youtube.com/watch?v=g1UJnqqcOBc Part 6
http://www.youtube.com/watch?v=494MPzSHv2M