Over 300 people were arrested in Oakland after police ordered a march of Occupy Oakland protesters to “submit” to an arrest because they were engaged in an unlawful assembly. Hundreds were detained outside of a YMCA. In zip cuffs, many waited for hours to be escorted to a police vehicle and hauled away.

Today is the third anniversary of Oscar Grant’s killing by BART police officer Johannes Mehserle. Oscar, a young father, a young worker, unarmed, was shot in the back while lying prostrate in police custody on the Fruitvale BART station platform. Mehserle was charged with murder and ultimately convicted of involuntary manslaughter, serving less than half of his two-year sentence. Occupy Oakland organized a march in remembrance.

Embattled Oakland Mayor Jean Quan, speaking in an interview with the BBC, casually mentioned that she was on a conference call with leaders of 18 US cities shortly before a wave of raids broke up Occupy Wall Street encampments across the country.

A roundup of stories from occupations around the country, including late updates from Oakland, where police used tear gas to disperse those trying to retake the site, and Atlanta, where more arrests occurred.

Some photos from downtown Oakland earlier today, hours after the riots partially inspired by the involuntary manslaughter verdict against BART police officer Johannes Mehserle in the death of Oscar Grant:

The verdict is, inexplicably, involuntary manslaughter in the Oakland Bay Area Rapid Transit subway execution of young Oscar Grant by cop.