Dallas shooting suspect Micah Johnson 'acted alone'

Micah Johnson, the man accused of killing five police officers in a gun attack during a protest rally in Dallas, acted alone, officials believe.

"We believe now the city is safe," Mayor Mike Rawlings said.

Bomb-making material, rifles and a combat journal were found at the home of Johnson, who was himself killed.

The Dallas protest was against the killing of black men by police, and similar rallies drew thousands across many US cities on Friday.

The demonstrations followed the police killings of Philando Castile in Minnesota andAlton Sterling in Louisiana.

'Weekend of Rage'

Dallas police chief David Brown and US Homeland Security Secretary Jeh Johnson also said the gunman appeared to have acted alone, although Texas Governor Greg Abbott said police would "continue down every rabbit trail... ensuring that we eliminate any other possible suspects or co-conspirators".

Officials on Friday had spoken of a co-ordinated attack by at least one sniper.

Three other suspects were arrested after the shootings but no details have been released about them.
A number of gun attacks on police officers and civilians have occurred in other parts of the US in the aftermath of the deaths in Minnesota and Louisiana.

In Tennessee, a black army veteran killed a woman and also injured three other people, including a police officer, as he opened fire on a motorway on Thursday morning, before the Dallas attacks. After his arrest, Lakeem Keon Scott told investigators he was troubled by police violence against African-Americans
In Missouri on Friday, a police officer was shot from behind after he walked back to his patrol car to check the driving status of a black man who he had stopped. Antonio Taylor, 31, was later arrested but the motive for the shooting is unknown
In Georgia on Friday, an officer was shot after he responded to a call from a man who said his car had been broken into. Again the motive is unknown
In the Georgian state capital, Atlanta, on Friday evening, thousands marched in protest at the recent police shootings but although roads were blocked off the demonstration remained peaceful.

                                                                                                                 ''BBC News''