Notes, flowers and other items decorate a squad car at a makeshift memorial in front of the Dallas police department in Texas, July 9, 2016. Five police officers were killed and seven other officers, and two civilians, were wounded Thursday night when gunfire broke out during a peaceful protest against police-related shootings earlier in the week.
In Photos: Memorial to Dallas Police Officers

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A makeshift memorial outside Dallas police headquarters honoring the officers shot in Thursday night's attack, July 9, 2016.

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A makeshift memorial outside Dallas police headquarters honoring the officers shot in Thursday night's attack, July 9, 2016.

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A young woman and girl visit the memorial site in Dallas for the five police officers killed by a sniper Thursday night, July 9, 2016.

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U.S. Army retired Combat Medic Chandler Davis stood in quiet salute for hours at a makeshift memorial outside the Dallas Police Headquarters, in Dallas, Texas, July 9, 2016.