
Protesters march in Ferguson, Missouri, on Thursday, August 21 2014. The St. Louis suburb saw turmoil after a white police officer, Darren Wilson, fatally shot an unarmed black teenager, Michael Brown, on August 9, 2014. Some protesters and law enforcement officers clashed in the streets, leading to injuries and arrests.

A crowd gathers in Ferguson on August 21, 2014. With the situation appearing to calm, Gov. Jay Nixon ordered the Missouri National Guard to begin withdrawing from the city.

Police escort a Wilson supporter to a police vehicle, away from crowds protesting Brown's death on Wednesday, August 20, 2014. Police have said Brown and Wilson struggled over the officer's gun; some witnesses said Brown had his hands in the air when he was shot.

Lightning streaks over protesters on August 20, 2014.

Demonstrators protest on August 20, 2014.

U.S. Attorney General Eric Holder meets with Capt. Ron Johnson of the Missouri State Highway Patrol at a Ferguson restaurant on August 20, 2014. Holder came to Missouri to talk to community leaders and review the federal civil rights investigation into Brown's shooting.

Protesters march through the streets of Ferguson on August 20, 2014.

Police point out a demonstrator who has his arms raised before moving in to arrest him Tuesday, August 19, 2014.

People watch from inside a restaurant as protesters rally August 19, 2014.

Police arrest a demonstrator on August 19, 2014.

Police charge into the media work area with weapons drawn as they try to control demonstrators on August 19, 2014.

A protester speaks to a police officer on August 19, 2014.

People on August 19 stand near a memorial where Brown was shot and killed, 2014.

Protesters march on August 19, 2014.

Police watch as protesters march August 19, 2014.

A demonstrator is arrested on August 19, 2014.

Police try to control protesters on Monday, August 18, 2014.

Police lead a man away during a protest August 18, 2014.

A demonstrator shouts during a protest on West Florissant Avenue, one of Ferguson's main streets, on August 18, 2014.

Capt. Ron Johnson of the Missouri State Highway Patrol pulls his men back from aggressive protesters on August 18, 2014.

Police arrest a demonstrator August 18, 2014, after peaceful protests gave way to angry confrontations with authorities.

Law enforcement officers stand guard during a protest on West Florissant Avenue on August 18, 2014.

A woman helps a man affected by tear gas August 18, 2014. The situation overnight deteriorated after a handful of protesters threw rocks, bottles and Molotov cocktails at police. Officers responded by firing stun grenades and tear gas canisters.