![A Dallas police officer, who did not want to be identified, takes a moment as she guards an intersection in the early morning after a shooting in downtown Dallas, Friday, July 8, 2016. At least two snipers opened fire on police officers during protests in Dallas on Thursday night; some of the officers were killed, police said. (AP Photo/)](www_bostonglobe_com/rf/image_r/Boston/2011-2020/2016/07/08/BostonGlobe.com/National/Images/772238951424424da218031e0ed3a917-772238951424424da218031e0ed3a917-0.r.jpg)
LM Otero/AP
A Dallas police officer, who did not want to be identified, took a moment as she guarded an intersection in the early morning after a shooting in downtown Dallas.
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Ting Shen/The Dallas Morning News via AP
An officer cried at a hospital emergency room.
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Tony Gutierrez/AP
Emergency responders tended to a patient.
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Smiley N. Pool/The Dallas Morning News
Dallas police responded after shots were fired.
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LM Otero/AP
Dallas police officers at the scene.
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Maria R. Olivas/The Dallas Morning News via AP
Bicycles used by Dallas police were left on the street.
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Emily Schmall/AP
Police gathered at Baylor Medical Center.
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Maria R. Olivas/The Dallas Morning News via AP
Dallas police responded after shots were fired.
![DALLAS, TX - JULY 8: Dallas police work near the scene where eleven Dallas police officers were shot and five have now died on July 7, 2016 in Dallas, Texas. According to reports, shots were fired during a protest being held in downtown Dallas in response to recent fatal shootings of two black men by police - Alton Sterling on July 5, 2016 in Baton Rouge, Louisiana and Philando Castile on July 6, 2016, in Falcon Heights, Minnesota. (Photo by )](www_bostonglobe_com/rf/image_r/Boston/2011-2020/2016/07/08/BostonGlobe.com/National/Images/545481720.r.jpg)
Ron Jenkins/Getty Images
Dallas police worked near the scene where eleven Dallas police officers were shot and five have now died.
![DALLAS, TX - JULY 8: Dallas police officers escort residents near the scene where eleven Dallas police officers were shot and five have now died on July 7, 2016 in Dallas, Texas. According to reports, shots were fired during a protest being held in downtown Dallas in response to recent fatal shootings of two black men by police - Alton Sterling on July 5, 2016 in Baton Rouge, Louisiana and Philando Castile on July 6, 2016, in Falcon Heights, Minnesota. (Photo by Ron Jenkins/Getty Images)](www_bostonglobe_com/rf/image_r/Boston/2011-2020/2016/07/08/BostonGlobe.com/National/Images/545480298.r.jpg)
Ron Jenkins/Getty Images
Dallas police officers escorted residents near the scene where the shooting took place.
![Sherry Williams, left, and Theresa Williams, center, speak to the media as they leave the Baylor University Medical Center, Friday, July 8, 2016, in Dallas. Theresa Williams said her sister Shetamia Taylor, who was attending a rally with her four teenage sons in downtown Dallas, was shot in one of her legs. (AP Photo/Tony Gutierrez)](www_bostonglobe_com/rf/image_r/Boston/2011-2020/2016/07/08/BostonGlobe.com/National/Images/ff28ab57d1574fa8b0d657ff5a239156-ff28ab57d1574fa8b0d657ff5a239156-0.r.jpg)
Tony Gutierrez/AP
Sherry Williams (left) and Theresa Williams (center) spoke to the media as they left Baylor University Medical Center, Friday. Theresa Williams said her sister Shetamia Taylor, who was attending a rally with her four teenage sons in downtown Dallas, was shot in one of her legs.
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