After Ferguson

Logan Browning, with duct tape over her mouth, joins demonstrators protesting against police violence in Hollywood, December 6, 2014. REUTERS/Patrick T. Fallon

A tie decorated with a picture of Michael Brown, during his funeral service at Friendly Temple Missionary Baptist Church in St. Louis, Missouri, August 25, 2014. REUTERS/Robert Cohen/Pool

Protesters, demanding the criminal indictment of police officer Officer Darren Wilson who shot dead Michael Brown in August, march through a suburb in St. Louis, Missouri, November 23, 2014. REUTERS/Adrees Latif

A child reads posters at the makeshift memorial where Eric Garner died during an arrest, at the Staten Island borough of New York, December 3, 2014. REUTERS/Eduardo Munoz

A police officer stands over activists, demanding justice for the death of Eric Garner, as they stage a 'die-in' during rush hour at Grand Central Terminal in Manhattan, December 3, 2014. REUTERS/Adrees Latif

A police officer is seen pointing his weapon during an incident involving the shooting of 12-year-old Tamir E. Rice as he holds a pellet gun at the Cudell Recreation Center in Cleveland, Ohio, November 26, 2014. REUTERS/Cleveland Police Department

Demonstrators hold signs at a rally over the death of Freddie Gray at City Hall in Baltimore, May 2, 2015. REUTERS/Eric Thayer

Children and a demonstrator hold signs in Baltimore at a rally over the death of Freddie Gray, May 2, 2015. REUTERS/Eric Thayer

A girl writes on the sidewalk near North Ave and Pennsylvania Ave in Baltimore, May 1, 2015. REUTERS/Eric Thayer

Relatives of Antonio Zambrano-Montes kneel next to his coffin during a funeral mass in Pomaro, in the Mexican state of Michoacan, March 7, 2015. Zambrano-Montes, 35, was shot dead by police in Washington state after he threw rocks at them. REUTERS/Alan Ortega

North Charleston police officer Michael Slager is seen allegedly shooting 50-year-old Walter Scott in the back as he runs away, in North Charleston, South Carolina, April 4, 2015. REUTERS/Feidin Santana

Protesters carry signs at a rally in North Charleston, South Carolina April 8, 2015. REUTERS/Randall Hill

A man is doused with milk and sprayed with mist after being hit by an eye irritant from security forces trying to disperse demonstrators protesting against the shooting of Michael Brown in Ferguson, Missouri, August 20, 2014. REUTERS/Adrees Latif

Protest signs and flowers adorn a fence at the site of the death of Walter Scott in North Charleston, South Carolina, April 12, 2015. REUTERS/Randall Hill

A police officer raises his weapon at a car speeding in his general direction as a more vocal and confrontational group of demonstrators stands on the sidewalk during further protests in reaction to the shooting of Michael Brown near Ferguson, Missouri, August 18, 2014. REUTERS/Lucas Jackson

Residents who marched from west Baltimore to City Hall, react to protest leaders who were chronicling the arrest and death of Freddie Gray, in Baltimore, April 30, 2015. REUTERS/Adrees Latif

People react as criminal charges are announced in the death of Freddie Gray in Baltimore, May 1, 2015. REUTERS/Eric Thayer

A protester throws a gas canister back at police during clashes at North Ave and Pennsylvania Ave in Baltimore following the death of Freddie Gray, April 28, 2015. REUTERS/Eric Thayer

Demonstrators hold signs of Sandra Bland and Kindra Chapman, both of whom died in custody, during a rally against police violence in New York, July 22, 2015. REUTERS/Shannon Stapleton

Texas state trooper Brian Encinia points a Taser, in this still image captured from the police dash camera video from the traffic stop of Sandra Bland's vehicle in Prairie View, Texas, July 10, 2015. REUTERS/The Texas Department of Public Safety

Mourners look on as the casket of Walter Scott is removed from a hearse for his funeral at W.O.R.D. Ministries Christian Center in Summerville, Saturday, April 11, 2015. REUTERS/David Goldman/Pool

Chloe Lawson, 3, protests the fatal police shooting of Ezell Ford, who died during an August 11, 2014 confrontation with police in South Los Angeles, at a rally in Los Angeles, August 15, 2014. REUTERS/Lucy Nicholson

Activist Cornel West is knocked over during a scuffle with police during a protest at the Ferguson Police Department in Ferguson, Missouri, October 13, 2014. REUTERS/Jim Young

A demonstrator lays in the street during a "die in" protest against police violence in front of the Ferguson Police Department in Missouri, December 5, 2014. REUTERS/Jim Young

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, November 25, 2014. REUTERS/Stephen Lam