He wanted to kill white people, especially white officers: Police kill sniper after twelve cops were shot - and FIVE killed - during furious nationwide protests over U.S. police shootings of two black men that ended in a four hour stand-off  Twelve police officers were shot - and five killed - during a Dallas, Texas Black Lives Matter protest Thursday night Police killed one suspect with a robotic bomb, after a four-hour standoff at a nearby college  Before he died, suspect Micah Xavier Johnson told a hostage negotiator that he acted alone, was upset about the recent police-shootings of two black men and wanted to kill white people - especially white officers The five casualties were all male cops; Two have been identified as Brent Thompson and Patrick Zamarripa Seven other officers (including two female cops) and two bystanders are among the injured  Gunfire broke out just before 9pm Central Time as protesters marched against the shootings of Alton Sterling and Philando Castile this week One or multiple gunmen fired from an elevated position, picking off officers ambush style Gruesome footage shows a cop being shot execution-style by a gunman as he rampaged through city Three other suspects - in addition to Johnson  - were taken into custody  Two of them are being questioned after speeding away from the scene in a black Mercedes  President Obama reacted to the shooting from Warsaw, Poland, expressing his deepest condolences to the American people

Twelve police officers were shot and five killed while working at a Black Lives Matter protest in downtown Dallas Thursday night, by a gunman who said he carried out the attack to revenge the two police-related deaths of black men this week. 

Shots rang out at the previously peaceful protest just before 9pm, and witness video shows marchers screaming and fleeing from the scene in horror.

All five cops killed were men and two have been identified so far: 43-year-old DART Officer Brent Thompson and young young father Patrick Zamarripa. 

Around 11pm, cops cornered a suspect at nearby El Centro College and attempted to negotiate with him, but four hours later the talks failed and a robot was brought in to detonate a bomb and kill the suspect. 

Before he died however, the gunman told the hostage negotiator his motivations behind the attack.  

The suspect said he was upset about Black Lives Matter. He said he was upset about the recent police shootings of black suspects. He said he was upset at white people. The suspect stated he wanted to kill white people, especially white officers, Dallas Police Chief David Brown revealed at a 7:30am press conference.

Authorities have identified the shooter as Micah Xavier Johnson, a 25-year-old from Texas with no criminal history or ties to terror groups. He allegedly claimed to have acted alone, countering previous reports that as many as four gunmen were involved in the massacre. Three other suspects were taken into custody at the scene Thursday night, but Chief Brown refused to go into detail about these arrests. However, he said that his department is still not certain that everyone involved in the attack.

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The Dallas gunman has been identified as 25-year-old Micah Xavier Johnson of Mesquite, Texas. Authorities say Johnson had no prior criminal convictions. Pictured above in his Facebook profile picture 

DART Officer Brent Thompson (right) was the first officer to be named as having been killed in the shootings. Another dead police officer was named by his family as young father Patrick Zamarripa (left). His stepbrother called him a hero

Twelve police officers were shot in the shooting and five killed. Two bystanders were also shot and injured. Above, police investigators walk the scene of the shooting Friday morning 

Dallas Police Chief David Brown (pictured) said his department and profession as a whole is hurting after Thursday nights massacre

A gunman named Micah X. Johnson was killed after a four-hour standoff with police. Before being killed, he told a hostage negotiator that he wanted to kill white police officers. Above, a police officer lies stricken next to cop cars