"We want change," demonstrators in Washington, D.C., chanted.
By Tuesday, Los Angeles police arrested nearly 3,000 during George Floyd protests.
George Floyd's death has sparked protests across the country.
Nathan Caraway is denying what some on social media have said is proof that an "anarchist" paid off young people to sow dissent at a protest.
"This has been a long night for your police department ... and a tragic night for our community," the Las Vegas sheriff said Tuesday.