Five officers are dead and six injured after shots were fired at a protest against police shootings in Dallas, Texas.
Dallas police chief David Brown said that in negotiations with police during the ultimately fatal standoff, the gunman said he was "upset about the recent police shootings". NY police made more than a dozen arrests on Thursday night, while protesters briefly shut down one of Chicago's main arteries.
Johnson, 25, had amassed a personal arsenal at his home in the Dallas suburb of Mesquite, including bomb-making materials, bulletproof vests, rifles, ammunition and a journal of combat tactics, authorities said Friday.
Lawyer Bradford Glendening says Micah Johnson was sent back to the USA with the recommendation he be removed from the Army with an "other than honorable" discharge.
Police said that at least four suspects were involved in the shooting, three of whom are in custody.
Sources confirmed later Friday that the fourth Dallas police officer killed has been identified as Sr. Cpl.
"But, it can't take our focus away from the public service that we provide our own community", he added.
Among those demands, Black Lives Matter Toronto called for a ban on police floats in future parades. That tells you everything you need to know about police officers.
Some details began to emerge about Johnson.
One witnesses says people were getting trampled in the scramble to get away from the multiple gun shots.
Before authorities killed him with an explosive, the suspect told negotiators more officers were going to get hurt, and that bombs had been planted all over downtown. His profile photo showed him with his clenched fist in the air in the familiar Black Power gesture.
The police has identified one suspect as Micah X. Johnson, who was a member of the United States Army Reserve, a USA government source told Reuters. He was trained and served in the Army Reserve as a carpentry and masonry specialist, defense officials said. That person then collapsed to the ground.
"We are horrified over these events and we stand unified with the people and the police department in Dallas".
The scene was chaotic, with officers with automatic rifles on the street corners.
"I saw what I believe were two police officers that went down. I didn't know what to do", Hood told reporters on Friday. If you work downtown, check here to see if your building will be open today.
It was the deadliest day for the police in the United States since the September 11, 2001, attacks on NY and Washington. President Barack Obama commented about the incident earlier Friday morning from Warsaw, Poland - where he's meeting with leaders of the European Union and attending a North Atlantic Treaty Organisation summit.
During a morning press conference, Brown said the suspect was upset with the recent shootings and "wanted to kill white people, white police officers". Some of the dead officers have been identified. He was married and was the father of a 2-year-old daughter.
A memorial group says the slaying of five police officers in Dallas in an attack blamed on snipers was the deadliest day in USA law enforcement history since the September 11, 2001, terrorist attacks. Hughes was released a short time later.