Park Record Media Center

FERGUSON, MO - AUGUST 20: U.S. Attorney General Eric Holder (C) poses for photographs following his meeting with students at St. Louis Community College Florissant Valley August 20, 2014 in Ferguson, Missouri. Holder is traveling to Ferguson, Mo., to oversea the federal government's investigation into the shooting of 18-year-old Michael Brown by a police officer on Aug. 9th. Holder promised a "fair and thorough" investigation into the fatal shooting of a young blackman, Michael Brown, who was unarmed when a white police officer shot him multiple times. (Photo by Pablo Martinez Monsivais-Pool/Getty Images) ( 453873796 )

CLAYTON, MO - AUGUST 20: Police stand guard outside the entrance as demonstrators protest outside of the Buzz Westfall Justice Center where a grand jury will begin looking at the circumstances surrounding the fatal police shooting of an unarmed teenager Michael Brown on August 20, 2014 in Clayton, Missouri. Brown was shot and killed by a Ferguson, Missouri police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death (Photo by Joe Raedle/Getty Images) ( 453867642 )

CLAYTON, MO - AUGUST 20: Demonstrators pray outside of the Buzz Westfall Justice Center where a grand jury is expected to begin looking at the circumstances surrounding the fatal police shooting of an unarmed teenager Michael Brown on August 20, 2014 in Clayton, Missouri. Brown was shot and killed by a Ferguson, Missouri police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453868626 )

People are moved peacefully by a line of police as authorities disperse a protest in Ferguson, Mo. early Wednesday, Aug. 20, 2014. On Saturday, Aug. 9, 2014, a white police officer fatally shot Michael Brown, an unarmed black teenager, in the St. Louis suburb. (AP Photo/Charlie Riedel) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 19: Police charge into the media work area with rifles at ready as they try to control demonstrators protesting the killing of teenager Michael Brown on August 19, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453851534 )

Police officers move in to arrest protesters as they push and clear crowds out of the West Florissant Avenue area in Ferguson, Mo. early Wednesday, Aug. 20, 2014. On Aug. 9, 2014, a white police officer fatally shot Michael Brown, an unarmed black 18-year old, in the St. Louis suburb. (AP Photo/Atlanta Journal-Constitution, Curtis Compton) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 19: Police point to a demonstrator who has his arms raised before moving in to arrest him on August 19, 2014 in Ferguson, Missouri. Violent outbreaks have taken place in Ferguson since the shooting death of unarmed teenager Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453846994 )

FERGUSON, MO - AUGUST 19: Police arrest a demonstrator protesting the killing of teenager Michael Brown on August 19, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453851528 )

FERGUSON, MO - AUGUST 19: Protesters scramble as they try to evade police who ran into the crow to make an arrest on August 19, 2014 in Ferguson, Missouri. Violent outbreaks have taken place in Ferguson since the shooting death of unarmed teenager Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453846986 )

Police handcuff a protester after rushing the crowd to arrest him on West Florissant Avenue in Ferguson, Mo. early Wednesday, Aug. 20, 2014. On Aug. 9, 2014, a white police officer fatally shot Michael Brown, an unarmed black 18-year old, in the St. Louis suburb. (AP Photo/Atlanta Journal-Constitution, Curtis Compton) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 19: Demonstrators protest the killing of teenager Michael Brown on August 19, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453851440 )

CLAYTON, MO - AUGUST 20: Demonstrators protest outside of the Buzz Westfall Justice Center where a grand jury will begin looking at the circumstances surrounding the fatal police shooting of an unarmed teenager Michael Brown on August 20, 2014 in Clayton, Missouri. Brown was shot and killed by a Ferguson, Missouri police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death (Photo by Joe Raedle/Getty Images) ( 453867646 )

FERGUSON, MO - AUGUST 19: A demonstrator is arrested while protesting the killing of teenager Michael Brown on August 19, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453836444 )

Peaceful Protestors walk at a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled "kill me now" and approached the patrol. Michael B. Thomas/AFP/Getty Images ( 532566854 )

A man is arrested after laying in the street while protesting during a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled "kill me now" and approached the patrol. Michael B. Thomas/AFP/Getty Images ( 532569655 )

A man is arrested after laying in the street while protesting during a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled "kill me now" and approached the patrol. Michael B. Thomas/AFP/Getty Images ( 532569649 )

Church Elder Gary Hill leads protesters in prayer Tuesday, Aug. 19, 2014, as they rallied for Michael Brown, who was killed by police Aug. 9 in Ferguson, Mo. Ferguson's leaders urged residents Tuesday to stay home after dark to "allow peace to settle in" and pledged several actions to reconnect with the predominantly black community in the St. Louis suburb where the fatal shooting of 18-year-old Michael Brown has sparked nightly clashes between protesters and police. (AP Photo/Charlie Riedel) ( Police Shooting Missouri )

A protestor displays a sign during a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled "kill me now" and approached the patrol. Michael B. Thomas/AFP/Getty Images ( 532569569 )

Protestors walk during a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled "kill me now" and approached the patrol. Michael B. Thomas/AFP/Getty Images ( 532569596 )

Protestors walk during a peaceful protest on West Florissant Ave. in Ferguson, Missouri on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled "kill me now" and approached the patrol. Michael B. Thomas/AFP/Getty Images ( 532569488 )

In an effort to foster some good will Missouri State Higway Patrol trooper D. Reuter chats with protester Robert Clark along West Florissant Avenue on Tuesday, Aug. 19, 2014, in Ferguson, Mo. The city of Ferguson, Missouri, says it working hard to better connect with the community and learn from the "discord and heartbreak" that followed the shooting death of 18-year-old Michael Brown by a police officer. (AP Photo/Atlanta Journal-Constitution, Curtis Compton) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 19: Missouri National Guard troops are deployed to provide protection for a police command center on August 19, 2014 in Ferguson, Missouri. Violent outbreaks have taken place in Ferguson since the shooting death of unarmed teenager Michael Brown by a Ferguson police officer on August 9. (Photo by Joe Raedle/Getty Images) ( 453823882 )

FERGUSON, MO - AUGUST 18: Frederick Scott protests the killing of teenager Michael Brown on August 18, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453805580 )

FERGUSON, MO - AUGUST 18: Police attempt to control demonstrators protesting the killing of teenager Michael Brown on August 18, 2014 in Ferguson, Missouri. Police shot smoke and tear gas to disperse the protestors with as they became unruly. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453804796 )

Demonstrators march during a protest on West Florissant Avenue in Ferguson, Missouri on August 18, 2014. Police fired tear gas in another night of unrest in a Missouri town where a white police officer shot and killed an unarmed black teenager, just hours after President Barack Obama called for calm. Michael B. Thomas/AFP/Getty Images ( 532552374 )

FERGUSON, MO - AUGUST 18: Demonstrators protesting the shooting death of Michael Brown make their voices heard on August 18, 2014 in Ferguson, Missouri. Protesters have been vocal asking for justice in the shooting death of Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453803672 )

FERGUSON, MO - AUGUST 18: Police attempt to control demonstrators protesting the killing of teenager Michael Brown on August 18, 2014 in Ferguson, Missouri. Police shot smoke and tear gas to disperse the protestors with as they became unruly. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453804760 )

FERGUSON, MO - AUGUST 18: Police attempt to control demonstrators protesting the killing of teenager Michael Brown on August 18, 2014 in Ferguson, Missouri. Police shot smoke and tear gas to disperse the protestors with as they became unruly. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453804768 )

A protestor is detained Monday, Aug. 18, 2014, in Ferguson, Mo. The Aug. 9 shooting of Michael Brown by police has touched off rancorous protests in Ferguson, a St. Louis suburb where police have used riot gear and tear gas. (AP Photo/St. Louis Post-Dispatch, Christian Gooden) ( Police Shooting Missouri )

Police detain a protester Monday, Aug. 18, 2014, in Ferguson, Mo. The Aug. 9 shooting of Michael Brown by police has touched off rancorous protests in Ferguson, a St. Louis suburb where police have used riot gear and tear gas. (AP Photo/St. Louis Post-Dispatch, J.B. Forbes) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 18: A demonstrator protects himself from tear gas during a protest over the killing of teenager Michael Brown on August 18, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his death. (Photo by Scott Olson/Getty Images) ( 453805570 )

FERGUSON, MO - AUGUST 18: Police officers work to keep order as demonstrators express their feelings on August 18, 2014 in Ferguson, Missouri. Violent outbreaks have taken place in Ferguson since the shooting death of unarmed teenager Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453803654 )

FERGUSON, MO - AUGUST 18: A person tries to clear tear gas from his eyes as police fire tear gas at demonstrators protesting the shooting death of Michael Brown on August 18, 2014 in Ferguson, Missouri. Police sprayed pepper spray, shot smoke, gas and flash grenades as violent outbreaks have taken place in Ferguson since the shooting death of Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453803662 )

A man is detained by police during a protest Monday, Aug. 18, 2014, for Michael Brown, who was killed by a police officer Aug. 9 in Ferguson, Mo. Brown's shooting has sparked more than a week of protests, riots and looting in the St. Louis suburb. (AP Photo/Charlie Riedel) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 18: Demonstrators cover their faces as tear gas fills the air as police fire the gas against an unruly crowd protesting the shooting death of Michael Brown on August 18, 2014 in Ferguson, Missouri. Police sprayed pepper spray, shot smoke, gas and flash grenades as violent outbreaks have taken place in Ferguson since the shooting death of Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453803674 )

A demonstrator reacts during a protest on West Florissant Avenue in Ferguson, Missouri on August 18, 2014. Police fired tear gas in another night of unrest in a Missouri town where a white police officer shot and killed an unarmed black teenager, just hours after President Barack Obama called for calm. Michael B. Thomas/AFP/Getty Images ( 532552244 )

Captain Ron Johnson of the Missouri Highway Patrol speaks to media during a protest on West Florissant Avenue in Ferguson, Missouri on August 18, 2014. Police fired tear gas in another night of unrest in a Missouri town where a white police officer shot and killed an unarmed black teenager, just hours after President Barack Obama called for calm. Michael B. Thomas/AFP/Getty Images ( 532552093 )

A citizen peacekeeper tries to keep protesters back as police advance Monday, Aug. 18, 2014, in Ferguson, Mo. The Aug. 9 shooting of Michael Brown by a police officer has touched off rancorous protests in Ferguson, a St. Louis suburb where police have used riot gear and tear gas. (AP Photo/St. Louis Post-Dispatch, Christian Gooden) ( Police Shooting Missouri )

FERGUSON, MO - AUGUST 18: Police officers work to keep order as demonstrators express their feelings on August 18, 2014 in Ferguson, Missouri. Violent outbreaks have taken place in Ferguson since the shooting death of unarmed teenager Michael Brown by a Ferguson police officer on August 9th. (Photo by Joe Raedle/Getty Images) ( 453803682 )