A demonstrator protesting the shooting death of Alton Sterling is detained by law enforcement near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY

A man protesting the shooting death of Alton Sterling is detained by law enforcement near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY

Demonstrators, wearing the insignia of the New Black Panthers Party, protest the shooting death of Alton Sterling near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. REUTERS/Jonathan Bachman 

People, including a man wearing a confederate flag, hug after taking part in a prayer circle after a Black Lives Matter protest following the multiple police shootings in Dallas, Texas, U.S., July 10, 2016. REUTERS/Carlo Allegri 

Kerron Stewart, 10, sits with demonstrators on the steps of the Louisiana State Capitol building in Baton Rouge, Louisiana, U.S. July 10, 2016. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY

Protesters raise their hands in solidarity as they prepare to march across the Williamsburg Bridge against police brutality in Manhattan. REUTERS/Bria Webb 

A police officer gestures during a demonstration that denounced the fatal shooting by police of two black men this week in the country, in Phoenix, Arizona. REUTERS/Ricardo Arduengo 

People walk over the names of people killed by police as they take part in a protest against the killing of Alton Sterling, Philando Castile and in support of Black Lives Matter during a march along Manhattan's streets in New York July 8, 2016. REUTERS/Eduardo Munoz 

A protestor is detained by NYPD officer as people take part in a protest against the killings of Alton Sterling and Philando Castile during a march along Manhattan's streets in New York July 7, 2016. REUTERS/Eduardo Munoz 

Members of the congregation pray during a vigil in memory of Alton Sterling, who was shot dead by police, in Baton Rouge, Louisiana, U.S. July 7, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY

Activists burn a U.S. flag with posters of Alton Sterling and Philando Castile as they protest on the corner of Florence Ave and Normandie Ave against the police shootings that lead to two deaths in Louisiana and Minnesota, respectively, in Los Angeles, California, July 7, 2016. REUTERS/Patrick T. Fallon 

People take part in a protest against the killings of Alton Sterling and Philando Castile during a march through Manhattan, with the Empire State Building seen in the background, in New York July 7, 2016. REUTERS/Darren Ornitz 

A door with handles in the likeness of the Oakland Police patch is seen splashed with red paint outside the Oakland Police headquarters during a protest against police shootings that lead to two deaths in Louisiana and Minnesota, respectively, in Oakland, California, U.S. July 7, 2016. REUTERS/Stephen Lam TPX IMAGES OF THE DAY

Diamond Reynolds weeps after she recounts the incidents that led to the fatal shooting of her boyfriend Philando Castile by Minneapolis area police during a traffic stop on Wednesday, at a "Black Lives Matter" demonstration in front of the Governor's Mansion in St. Paul, Minnesota, U.S., July 7, 2016. REUTERS/Eric Miller

The four-year-old daughter of Diamond Reynolds, who was in the car when Philando Castile was fatally shot during a traffic stop by police, is held by a friend during a "Black Lives Matter" protest in front of the Governor's Mansion in St. Paul, Minnesota, U.S., July 7, 2016. REUTERS/Eric Miller

Marques Armstrong chants in support of Philando Castile, who was fatally shot by Minneapolis area police during a traffic stop on Wednesday, at a "Black Lives Matter" demonstration, in front of the Governor's Mansion in St. Paul, Minnesota, U.S., July 7, 2016. REUTERS/Eric Miller 

Sandra Sterling, reacts during community vigil in memory of her nephew, Alton Sterling, who was shot dead by police, at the Triple S Food Mart in Baton Rouge, Louisiana, U.S. July 6, 2016. REUTERS/Jeffrey Dubinsky TPX IMAGES OF THE DAY

Hannah Wodaje, president of San Francisco State University's Black Student Union raises her hand after a police officer fatally shot a 27-year-old woman in a reportedly stolen car in San Francisco, California, U.S. May 19, 2016. REUTERS/Stephen Lam TPX IMAGES OF THE DAY

Protesters including Lamon Reccord, 16, confront police during a demonstration in response to the fatal shooting of Laquan McDonald in Chicago, Illinois November 25, 2015. Laquan McDonald, 17, was fatally shot by Jason Van Dyke, a Chicago police officer, in October 2014. REUTERS/Andrew Nelles 

Two anti-police demonstrators walk away from a line of St Louis County police officers during protests in Ferguson, Missouri August 11, 2015. Police in riot gear clashed with protesters who had gathered in the streets of Ferguson early on Tuesday to mark the anniversary of the police shooting of an unarmed black teen whose death sparked a national outcry over race relations. REUTERS/Lucas Jackson

Protesters fall to the ground to take cover after shots were fired in a police-officer involved shooting in Ferguson, Missouri August 9, 2015. Two people were shot in the midst of a late-night confrontation between riot police and protesters, after a day of peaceful events commemorating the fatal shooting of Michael Brown by a white officer one year ago. REUTERS/Rick Wilking 

Amarion Allen, 11-years-old, stands in front of a police line shortly before shots were fired in a police-officer involved shooting in Ferguson, Missouri August 9, 2015. Two people were shot in the midst of a late-night confrontation between riot police and protesters, after a day of peaceful events commemorating the fatal shooting of Michael Brown by a white officer one year ago. REUTERS/Rick Wilking TPX IMAGES OF THE DAY

A partially burned American flag lies on the street near the spot where Michael Brown was killed before an event to mark the one year anniversary of his killing in Ferguson, Missouri August 9, 2015. Several hundred people gathered in Ferguson on Sunday to mark the anniversary of the shooting death of the unarmed black teenager by a white police officer that sparked protests and a national debate on race and justice. REUTERS/Rick Wilking 

Capt. Ron Johnson of the Missouri State Highway Patrol carries sleeping Quinn Edwards, 4, after taking him from his father Frankie (in shorts next to Johnson) to put him on his UTV, during a protest march in Ferguson, Missouri August 8, 2015. One year after the police shooting of an unarmed black teen thrust Ferguson into the national spotlight, the St. Louis suburb is bracing for a weekend of protests over continued complaints of police violence. REUTERS/Rick Wilking 

A CS grenade that was retrieved from the aftermath of demonstrations in Ferguson, Missouri on August 18, 2014 is displayed in a still life photograph taken on September 30, 2014. This August 9, 2015 will be the first anniversary of the fatal shooting of unarmed black teenager Michael Brown by police officer Darren Wilson. Brown's death sparked months of sometimes violent protests both in Ferguson and around the United States following subsequent police killings of unarmed black men in several other cities. It also spurred the "Black Lives Matter" movement that has cast a spotlight on long-troubled relations between police and minority residents of many U.S. cities. Picture taken September 30, 2014. REUTERS/Lucas Jackson 

Chocolate, 36, an activist who wants to be identified by only her nickname, waves an American flag upside down while posing for a portrait in Ferguson, Missouri July 24, 2015. When asked how Michael Brown's death affected her life, Chocolate said, "My life won't ever be the same. It has changed me to become an activist and protester. It has made me to get more involved with my community and especially with youth. When you ask a kid these days what they want to be when they grow up, their answer is "I want to be alive." When asked what changes she has seen in her community over the past year, Chocolate said, "We are all still trying to heal. There are still a lot of racist cops here. We can do what we do which is stand up for justice. No one has accepted what happened out here. There is still a disconnect with the police and the community." The message on the flag reads: Hands up, don't shoot. Lost voices. Mike Brown means we got to fight back! On August 9, 2014 a white police officer shot unarmed black teenager Michael Brown dead in the St. Louis suburb of Ferguson, Missouri. A year later Reuters photographer Adrees Latif returned to Ferguson, where he has documented events in the past year, to capture the portraits of local residents and canvass their views. REUTERS/Adrees Latif TPX IMAGES OF THE DAYPICTURE 6 OF 13 FOR WIDER IMAGE STORY "PORTRAITS OF FERGUSON"SEARCH "LATIF PORTRAITS" FOR ALL PICTURES

Children play with adults near the entrance to Mount Sinai United Christian Church, where an Interfaith Prayer Service for Healing and Reconciliation is held in memory for the late Eric Garner, in the Staten Island borough of New York July 14, 2015. REUTERS/Shannon Stapleton 

People take part in "Black Lives Matter" march around Emanuel African Methodist Episcopal Church in Charleston, June 20, 2015. Dylann Roof, a 21-year-old with a criminal record, is accused of killing nine people at a Bible-study meeting in the historic African-American church in Charleston, South Carolina, in an attack U.S. officials are investigating as a hate crime. REUTERS/Carlo Allegri TPX IMAGES OF THE DAY

A man holds a "Black Lives Matter" wristband in memory of Ezell Ford during a meeting of the Los Angeles Police Commission in Los Angeles, California June 9, 2015. The Los Angeles police commission on Tuesday will review the findings of the city's police chief and an inspector general that two officers were justified in opening fire on an unarmed black man who investigators say tried to grab one officer's gun. REUTERS/Patrick T. Fallon TPX IMAGES OF THE DAY

Demonstrators march down John Nolen Drive for the second day after the announcement that Officer Matt Kenny will not face charges in the fatal shooting of an unarmed 19-year-old biracial man, in Madison, Wisconsin May 13, 2015. Tony Robinson Jr. was shot in the head, torso and right arm by Officer Kenny, who police have said was responding to a report that a man who had battered someone was dodging traffic in the street when he encountered Robinson. REUTERS/Ben Brewer 

Gyalwang Drukpa, a Buddhist leader from South Asia, prays in front of a mural of Freddie Gray in Baltimore, Maryland, May 7, 2015. Gray, 25, sustained spinal injuries after being arrested and died on April 19. REUTERS/Carlos Barria TPX IMAGES OF THE DAY

A law enforcement officer uses pepper spray to disperse the crowd at the intersection of North and Pennsylvania Avenues in Baltimore, May 4, 2015. REUTERS/Sait Serkan Gurbuz TPX IMAGES OF THE DAY 

A man is seen detained in the back of a police van after defying a 10 pm curfew in west Baltimore, Maryland, May 2, 2015. Thousands of people took to the streets of Baltimore on Saturday as anger over the death of a young black man turned to hopes for change following swift criminal charges against six police officers. There was an upbeat mood at the march from the housing projects where 25-year-old Freddie Gray was arrested last month to a plaza in front of city hall where the city's chief prosecutor announced charges on Friday ranging from murder to assault in his death. Picture taken May 2, 2015. REUTERS/Adrees Latif TPX IMAGES OF THE DAY

Demonstrators sit on a vehicle as they take part in a march in Baltimore, Maryland May 2, 2015. Hundreds of people took to the streets of Baltimore on Saturday as anger over the death of young black man Freddie Gray turned to hopes for change following swift criminal charges against six police officers. REUTERS/Eric Thayer 

A man, protesting the death of Freddie Gray, is detained by police after defying a curfew in Baltimore, Maryland April 30, 2015. A Baltimore police report on the death of a black man who suffered spinal injuries while in custody was handed over on Thursday to the city's chief prosecutor, who must decide whether to bring charges against six officers involved in the man's arrest. REUTERS/Adrees Latif TPX IMAGES OF THE DAY

Ka'dyn Franklin, 7, reaches out to display a peace sign while celebrating from the roof of his mother's vehicle in west Baltimore, Maryland May 1, 2015. Baltimore residents cautiously celebrated news on Friday that six police officers involved in the arrest of Freddie Gray face criminal charges, a marked contrast to recent rioting over fraught relations between police and the African-American community. REUTERS/Adrees Latif TPX IMAGES OF THE DAY

A boy talks to a police officer near North Ave and Pennsylvania Ave in Baltimore, Maryland April 28, 2015. Baltimore erupted in violence on Monday as hundreds of rioters looted stores, burned buildings and at least 15 police officers were injured following the funeral of Freddie Gray, a 25-year-old black man who died after suffering a spinal injury in police custody. The riots broke out blocks from where the funeral of Gray took place and spread through much of west Baltimore. REUTERS/Eric Thayer TPX IMAGES OF THE DAY

A member of the Nation of Islam, who was attempting to keep peace between protesters and riot police, raises his hands amid clouds of smoke and gas which was used by riot police to disperse crowds protesting the death of 25-year-old black man Freddie Gray, after a deadline for a city-wide curfew passed in Baltimore, Maryland April 28, 2015. REUTERS/Adrees Latif 

A man with looted goods walks by burned vehicles in Baltimore, Maryland April 27, 2015. Maryland Governor Larry Hogan declared a state of emergency and activated the National Guard to address the violence in Baltimore, his office said on Monday. Several Baltimore police officers were injured on Monday in violent clashes with young people after the funeral of a black man, Freddie Gray, who died in police custody, and local law enforcement warned of a threat by gangs. REUTERS/Shannon Stapleton 

A firefighter uses a saw to open a metal gate while fighting a fire in a convenience store and residence during clashes after the funeral of Freddie Gray in Baltimore, Maryland in the early morning hours of April 28, 2015. Baltimore erupted in violence as hundreds of rioters looted stores, burned buildings and injured at least 15 police officers following the funeral of Gray, a 25-year-old black man who died after he was injured in police custody. REUTERS/Eric Thayer TPX IMAGES OF THE DAY

A demonstrator looks up after being sprayed with pepper spray during clashes in Baltimore, Maryland April 27, 2015. Maryland Governor Larry Hogan declared a state of emergency and activated the National Guard to address the violence in Baltimore, his office said on Monday. Several Baltimore police officers were injured on Monday in violent clashes with young people after the funeral of a black man, Freddie Gray, who died in police custody, and local law enforcement warned of a threat by gangs. REUTERS/Shannon Stapleton 

National Guard troops stand watch along E. Pratt St. in Baltimore, Maryland April 28, 2015. U.S. President Obama on Tuesday said rioting in Baltimore emphasized the need for national "soul searching" on the way police forces deal with the public. Obama, in his first public statement about Freddie Gray, a Maryland black man who died of a broken spine after being arrested, said such cases are not new. REUTERS/Eric Thayer TPX IMAGES OF THE DAY

Members of the community hold hands in front of police officers in riot gear outside a recently looted and burned CVS store in Baltimore, Maryland, United States April 28, 2015. The day after rioters tore through Baltimore, the city's mayor was criticized on Tuesday for a slow police response to some of the worst U.S. urban unrest in years after the funeral of Freddie Gray, a 25-year-old black man who died in police custody. Maryland Governor Larry Hogan said he had called Mayor Stephanie Rawlings-Blake repeatedly Monday but that she held off calling in the National Guard until three hours after violence first erupted. REUTERS/Jim Bourg TPX IMAGES OF THE DAY

Men shout "Freddie G" as they protest against the death of 25-year-old black man Freddie Gray who died in police custody in Baltimore, Maryland April 28, 2015. Baltimore's mayor came under criticism on Tuesday for a slow police response to some of the worst urban violence in the United States in years in which shops were looted, buildings burned to the ground and 20 officers were injured. REUTERS/Adrees Latif TPX IMAGES OF THE DAY

Demonstrators jump on a damaged Baltimore police department vehicle during clashes in Baltimore, Maryland April 27, 2015. Several Baltimore police officers were injured on Monday in violent clashes with young people after the funeral of a black man, Freddie Gray, who died in police custody, and local law enforcement warned of a threat by gangs.
REUTERS/Shannon Stapleton 

Mourners pay their respects at the open casket of 25-year old Freddie Gray prior to his funeral services at New Shiloh Baptist Church in Baltimore, Maryland April 27, 2015. Gray died after being taken into police custody and sustaining a mysterious spinal injury, a death that has angered many residents of this predominantly African-American city. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY 

Demonstrators stop to help a man on a sidewalk in downtown Baltimore during a protest against the death of Freddie Gray in police custody, in Baltimore April 25, 2015. Thousands of people marched peacefully through downtown Baltimore on Saturday to protest the unexplained death of the 25-year-old black man in police custody but pockets of violence erupted when a small group smashed windows and threw bottles at officers. REUTERS/Sait Serkan Gurbuz 

A participant leaves the vigil conducted by civil rights leader Rev. Al Sharpton at the site of the death of Walter Scott in North Charleston, South Carolina, April 12, 2015. Reverend Sharpton on Sunday praised the mayor of a South Carolina town where a white patrolman was charged with murder after the fatal shooting of a black man and said other officers there should face charges. New York-based Sharpton said he hoped the prosecution of the officer, who shot Walter Scott in the back on April 4, would mark a turning point in the United States. The incident was caught on video by a bystander. REUTERS/Randall Hill 

A young church goer hugs his mother's arm before civil rights leader Rev. Al Sharpton spoke at Charity Missionary Baptist Church in North Charleston, South Carolina, April 12, 2015. Sharpton was in North Charleston to honor Walter Scott, an African-American father of four, was shot in the back while running from a white patrolman. New York-based Sharpton has said the shooting of Scott, whose death April 4 was filmed by a bystander, validates the need for a federal oversight of policing in the United States. REUTERS/Randall Hill 

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, Saturday, April 11, 2015, in Summerville. Scott was killed by a North Charleston police officer after a traffic Saturday, April 4, 2015. The officer, Michael Thomas Slager, has been charged with murder. REUTERS/David Goldman/Pool TPX IMAGES OF THE DAY

Muhiyidin Moye D'Baha of the Black Lives Matter movement, leads his group in prayer before a news conference demanding a citizen review board in North Charleston, South Carolina April 9, 2015. For the dozens of protesters who descended on the working-class South Carolina city of North Charleston on Wednesday, a bystander's video of a white police officer gunning down Scott was long-awaited confirmation of what many residents have been saying for years. Activists said the footage, showing Officer Michael Slager shooting 50-year-old Walter Scott in the back, is chilling evidence of what they portray as "an atmosphere of racism" that allows African-Americans to be targeted in North Charleston and across the state. REUTERS/Randall Hill TPX IMAGES OF THE DAY

North Charleston police officer Michael Slager (R) is seen allegedly shooting 50-year-old Walter Scott in the back as he runs away, in this still image from video in North Charleston, South Carolina taken April 4, 2015. Slager was charged with murder on April 7 after a video showed him shooting eight times at the back of Scott who was running away. North Charleston Mayor Keith Summey said state investigators decided to charge officer Slager, 33, with the murder of Scott after they viewed the video of the incident, which followed a traffic stop on Saturday morning. The FBI and U.S. Justice Department have begun a separate investigation. REUTERS/Feidin Santana/handout via Reuters EDITORIAL USE ONLY. MANDATORY CREDIT. 

A protester wears tape over her mouth during a silent demonstration against what they say is police brutality after the Ferguson shooting of Michael Brown, an unarmed black teenager, by a white police officer, in St. Louis, Missouri March 14, 2015. REUTERS/Jim Young (UNITED STATES - Tags: CRIME LAW CIVIL UNREST POLITICS TPX IMAGES OF THE DAY) 

Police stand guard moments after gun shots were fired outside the City of Ferguson Police Department and Municipal Court in Ferguson, Missouri, early March 12, 2015. Two police officers were shot during a protest outside the Ferguson, Missouri police department early on Thursday, the St. Louis Post-Dispatch newspaper reported. The newspaper reported that Ferguson Lt. Col. Al Eickhoff said he did not believe either of the officers were part of his department. He could not provide details on their injuries to the Post-Dispatch. A few dozen demonstrators fled following the sound of gunfire around midnight with some screaming, "They hit a cop," according to a Reuters photographer at the scene. Police could not be reached immediately for comment. REUTERS/Kate Munsch (UNITED STATES - Tags: CIVIL UNREST CRIME LAW POLITICS TPX IMAGES OF THE DAY) 

Police officers respond to a fellow officer hit by gunfire outside the Ferguson Police Headquarters in Ferguson, Missouri March 12, 2015. Two police officers in Ferguson, Missouri, were shot early on Thursday in what officials called an ambush following months of acute tensions over relations between police and minority groups in the St. Louis suburb. REUTERS/Lawrence Bryant/St. Louis American (UNITED STATES - Tags: CRIME LAW TPX IMAGES OF THE DAY CIVIL UNREST) 

A makeshift memorial pays tribute to a 19-year-old black man killed by police, in front of a home cordoned off with barricade tape on Williamson Street in Madison, Wisconsin March 7, 2015. Demonstrators marched on Saturday to protest the police killing of the man, identified by the Dane County Medical Examiner's Office as Tony T. Robinson Jr., in Madison, Wisconsin, an incident that came amid growing scrutiny of U.S. law enforcement's use of lethal force against minorities, the poor and mentally ill. REUTERS/Tom Lynn (UNITED STATES - Tags: CRIME LAW CIVIL UNREST OBITUARY) 

A demonstrator holds a banner during a protest against police violence towards minorities in New York January 15, 2015. The protests were organized to coincide with Martin Luther King's birthday and have been ongoing in New York since last year's shooting death of Michael Brown in Ferguson, Missouri and Eric Garner's chokehold death in Staten Island, New York. Both deaths were at the hands of local police forces and in both instances, charges were not laid for the deaths. REUTERS/Andrew Kelly (UNITED STATES - Tags: CRIME LAW CIVIL UNREST TPX IMAGES OF THE DAY) 

A plain clothes California Highway Patrol detective, who had been marching with anti-police demonstrators, aims his gun at protesters after some in the crowd identified him and his partner during an arrest in Oakland, California, December 10, 2014. Chief Avery Browne, commander of the California Highway Patrol's Golden Gate Division, said two plainclothes CHP detectives were surrounded by up to 50 demonstrators who ignored orders to back off, despite one of the officers first taking out his baton and identifying himself as police. REUTERS/Noah Berger (UNITED STATES - Tags: CIVIL UNREST CRIME LAW TPX IMAGES OF THE DAY) 

A man stands in falling snow following a news conference where members of Justice League NYC presented a list of demands at City Hall in New York December 10, 2014. The league, made up of of juvenile and criminal justice advocates, artists and experts, and formerly incarcerated individuals, presented the list in response to the failure of a Staten Island Grand Jury to indict police officer Daniel Pantaleo for the chokehold death of Eric Garner. REUTERS/Andrew Kelly (UNITED STATES - Tags: CRIME LAW CIVIL UNREST POLITICS TPX IMAGES OF THE DAY) 

A protester pauses during a march against police violence in New York, December 7, 2014. Protesters in New York and other cities staged a fifth night of rallies on Sunday, denouncing use of deadly force by police against minorities. This week's wave of angry but largely peaceful protests began Wednesday when a New York grand jury declined to bring charges against white police officer Daniel Pantaleo in the chokehold death of Garner, a black 43-year-old father of six. REUTERS/Andrew Kelly (UNITED STATES - Tags: CRIME LAW CIVIL UNREST POLITICS)