 "Police and protesters clash near Seattle Central Community")
Protests took a violent turn in several US cities overnight, with demonstrators squaring off against agents outside a federal courthouse in Portland, Oregon, forcing police in Seattle to retreat into a station house and setting fire to vehicles during unrest in California and Virginia.
A protester in Austin, Texas, who was apparently armed with a rifle was shot and killed after witnesses say he approached a car that had driven through a march against police violence.
And someone was shot and wounded in Aurora, Colorado, after a car drove through a protest there, authorities said.
The unrest Saturday and early Sunday stemmed from
