A protester pours milk in his eyes after being tear gassed by Seattle police at the Interstate 5 entrance on Cherry Street in Seattle, Nov. 24, 2014.

James Cartmill holds an American flag while protesting in Oakland, Calif., Nov. 24, 2014, after the announcement that a grand jury decided not to indict Ferguson police officer Darren Wilson in the fatal shooting of Michael Brown, an unarmed 18-year-old.

A demonstrator sits in front of a street fire during a demonstration following the grand jury decision in the Ferguson, Missouri shooting of Michael Brown, in Oakland, Calif., Nov. 25, 2014.

Police officers in gas masks form a line during a demonstration following the grand jury decision in the Ferguson, Missouri shooting of Michael Brown, in Oakland, Calif., Nov. 25, 2014.

Demonstrators march through the streets following the grand jury decision in the Ferguson, Missouri shooting of Michael Brown, in Seattle, Nov. 24, 2014.

A line of police officers prepares to advance on protestors during a demonstration in Oakland, Calif., Nov. 24, 2014, following the grand jury decision in the shooting of Michael Brown in Ferguson, Mo.

Protesters fill Times Square during a march after the announcement of the grand jury decision not to indict Ferguson police officer Darren Wilson in the fatal shooting of Michael Brown, Nov. 24, 2014, in New York.

Protesters hold hands and chant as they gather outside the headquarters of the Washington DC Metropolitan Police Department as part of a planned "28 Hours for Mike Brown" protest, Nov. 25, 2014 in Washington.

Protesters clasp hands as they march up Seventh Ave. towards Times Square after the announcement of the grand jury decision not to indict Ferguson police officer Darren Wilson in the fatal shooting of Michael Brown, an unarmed black 18-year-old, Nov. 24, 2014, in New York.

Cameramen surround a protestor as she speaks into a megaphone before the announcement of the grand jury decision not to indict Ferguson police officer Darren Wilson in the fatal shooting of Michael Brown, Nov. 24, 2014, in New York.

A demonstrator is arrested after allegedly splattering a police officer with imitation blood in Times Square during a protest again the announcement of the grand jury decision not to indict Ferguson police officer Darren Wilson in the fatal shooting of Michael Brown, Nov. 24, 2014, in New York.

Demonstrators gather outside the White House to protest the decision not to indict police officer Darren Wilson in the shooting death of Michael Brown in Ferguson, Mo., Nov. 24, 2014 in Washington.

Demonstrators gather outside the White House to protest the decision not to indict police officer Darren Wilson, Nov. 24, 2014 in Washington.

Protesters march in a rally near the Chicago Police headquarters on Nov. 24, 2014 after the announcement of the grand jury decision not to indict police officer Darren Wilson in the fatal shooting of Michael Brown.