I've attached the flyer for the rally. An extract from the text:

On New Year’s Day 2009, young Oscar Grant was killed in cold blood as his friends were being terrorized by BART police.

Police brutality occurs with chilling regularity in black and brown communities, especially against immigrant workers.

In the 1934 Maritime Strike two workers were killed by police, provoking the San Francisco General Strike. Organized labor in unity with the community must mobilize to stop police violence against the oppressed.