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A look back at the week’s events in Ferguson in photos

BY newsdesk  August 15, 2014 at 5:22 PM EDT

In Gwen Ifill’s column Friday, “The optics of a national crisis,” she writes about how national events become remembered by the images that define them.

Twitter and Vine, she said, “were consumed this week with videos of tear gas, arrests and college students with their hands raised over their heads. Sen. Claire McCaskill realized the power of optics when she got herself to a black church in Ferguson to speak to her constituents about the violence breaking out all around them.”

Here are some of the images from Ferguson, Missouri, this week.

On Friday morning, people gathered in the lot of the Quick Trip gas station — which was burned during rioting — as Ferguson Police Chief Thomas Jackson released the name of the Ferguson police officer responsible for the shooting death of 18-year-old Michael Brown on August 9.

Caption:FERGUSON, MO - AUGUST 15: People gather in the lot of the Quick Trip gas station, which was burned during rioting, as Ferguson Police Chief Thomas Jackson releases the name of the Ferguson police officer responsible for the August 9, shooting death of teenager Michael Brown on August 15, 2014 in Ferguson, Missouri. The officer was identified as Darren Wilson, a six year veteran of the police department. Brown's killing sparked several days of violent protests in the city. (Photo by Scott Olson/Getty Images)

Photo by Scott Olson and Getty Images.

Darren Wilson, a six-year veteran of the police department, is the officer being investigated in Brown’s death, Jackson said on Friday, breaking a weeklong silence on the officer’s identity.

Ferguson Police Chief Thomas Jackson on Friday morning announces Darren Wilson is the officer being investigated in the shooting death of teenager Michael Brown.

Photo by Scott Olson/Getty Images

Jackson also said that Michael Brown was believed to have been involved in a robbery at a nearby convenience store earlier that day, though he later added that he Wilson was likely not aware of the alleged robbery.

This announcement came after days of demonstrations in Ferguson, Missouri, and a police response that included shooting rubber bullets and firing tear gas to force protesters from Ferguson’s business district into nearby neighborhoods. In this photo, an Al Jazeera television crew scrambles for cover as police fire tear gas into their reporting location.

FERGUSON, MO - AUGUST 13: An Al Jazeera television crew, covering demonstrators protesting the shooting death of teenager Michael Brown, scramble for cover as police fire tear gas into their reporting position on August 13, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on Saturday. Ferguson, a St. Louis suburb, is experiencing its fourth day of violent protests since the killing. Photo by Scott Olson/Getty Images

Photo by Scott Olson/Getty Images

And here a child uses a rag to shield her face from tear gas being fired by police.

Photo by Scott Olson and Getty Images

Photo by Scott Olson and Getty Images

The events in Ferguson have drawn attention to the degree in which local police are becoming more heavily armed. For days, police in the St. Louis suburb carried assault rifles and ammunition…

For days, police in the St. Louis suburb wore camouflage, riot gear and helmets and carried assault rifles and ammunition. Photo by Photo by Scott Olson/Getty Images

Photo by Scott Olson/Getty Images

…and wore camouflage, helmets and riot gear.

St. Louis County Law Enforcement Officers stand in riot gear during a protest of the shooting death of 18-year-old Michael Brown by a Ferguson police officer, outside Ferguson Police Department Headquarters August 11, 2014. Photo by Michael B. Thomas/Getty Images

Photo by Michael B. Thomas/Getty Images

Protesters responded with arms raised, chanting, “Hands up, don’t shoot,” words that have become symbolic of this week’s events.

Protestors raised their arms chanting, "Hands up, don't shoot." Photo by Scott Olson/Getty Images

Photo by Scott Olson/Getty Images

FERGUSON, MO - AUGUST 14: Demonstrators protest the shooting death of teenager Michael Brown on August 14, 2014 in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9. Police in Ferguson have changed their procedure for dealing with the protests after being chastised for a heavy-handed approach which has resulted in four days of violence. Today three police cars and four officers on foot led the way during a protest march. (Photo by Scott Olson/Getty Images)

Photo by Scott Olson/Getty Images

Outrage In Missouri Town After Police Shooting Of 18-Yr-Old Man

Photo by Scott Olson/Getty Images

President Barack Obama, wearing an American flag pin, called for peace and calm during a press briefing Thursday afternoon while on vacation with his family on Martha’s Vineyard.

President Barack Obama at a press briefing at the Edgartown School  in Edgartown, Martha's Vineyard, MA on August 14, 2014.  President Obama is vacationing with his family on Martha's Vineyard. Photo by Rick Friedman/Getty Images

Photo by Rick Friedman/Getty Images

And later that day, Capt. Ronald Johnson of the Missouri State Highway Patrol, who was appointed by the governor to take control of protest security operations in the city of Ferguson, also pleaded for calm.

Capt. Ronald Johnson of the Missouri State Highway Patrol, who was appointed by the governor to take control of security operations in the city of Ferguson, walks among demonstrators gathered along West Florissant Avenue on August 14, 2014 in Ferguson, Missouri. Photo by Scott Olson/Getty Images

Photo by Scott Olson/Getty Images

The atmosphere in Ferguson changed on Thursday after police toned down their response to demonstrators. In a symbolic move, officers — including Johnson — marched alongside protesters.

On August 14, three police cars and four officers on foot led the way during a protest march. Photo by Scott Olson/ Getty Images

Photo by Scott Olson/ Getty Images

Meanwhile, crowds rallied in other cities, including New York, Washington, D.C., and Boston. In a rally in Boston on Thursday, Camila Carpio, 18, held a sign with names of people killed by police officers.

In a rally in Boston on August 14, Camila Carpio, 18, holds a sign with names of people killed by police officers. Photo by Matthew J. Lee/The Boston Globe via Getty Images

Photo by Matthew J. Lee/The Boston Globe via Getty Images

And in Baltimore on Thursday, Amelia Vitek, 6, watches protestors and signs outside of the Clarence Mitchell Jr. Courthouse.

And in Baltimore on August 14, Amelia Vitek, 6, looks up at protestors and signs outside of the Clarence Mitchell Jr. Courthouse. Photo by Rachel Woolf/Baltimore Sun/MCT via Getty Images)

Photo by Rachel Woolf/Baltimore Sun/MCT via Getty Images)

Demonstrators protest the shooting death of teenager Michael Brown Thursday in Ferguson, Missouri. Photo by Scott Olson/Getty Images

Photo by Scott Olson/Getty Images