Tony Turner wrote and sang "Harperman," leading a (barefooted) choir through lyrics that ask questions such as "Who squashes all dissent?" and "Who muzzles all the scientists?"
The demonstrators gathered after police shot and killed an 18-year-old who officers said pointed a gun at them. Police said protesters threw bottles and bricks at them. A vacant house was set on fire.
Nearly 400 businesses were damaged during riots after Freddie Gray's death. But weeks later, the repairs are limping along, despite promises of aid from nonprofits and both city and state officials.
Many have contrasted media treatment of bikers in the Waco shootout with its treatment of black protesters. Charles Blow says this speaks to an underlying fear "of the otherness of blackness."
Police arrested about 100 demonstrators in Manhattan after crowds tried to block a major tunnel, and pepper spray was deployed in Colorado. In Baltimore, the curfew was honored.
There are stark differences between what happened in Madison, Wis., and the shooting of Michael Brown in Ferguson, Mo. But protesters say racism is still at the root of Tony Robinson's shooting death.
But William Bratton tells NPR the issue was being corrected. The death of Eric Garner in police custody and the subsequent slaying of two New York City police officers has created a tense atmosphere.