Dallas: After exchanging gunfire, Dallas police yesterday used a robot armed with a bomb to kill the primary suspect in the ambush murders of five Dallas cops Thursday night. It appears to be a first in the annals of law enforcement.

Police Chief David O. Brown, who is black, said the police made the decision to use the robot and explosive because officers were in too much danger to do anything else.

Police identify the man as Micah X. Johnson, 25, an Army veteran who served in Afghanistan. They say he may have been the only gunman in what was originally thought to be a coordinated attack carried out by several shooters. Dallas police said a search of Johnson’s home turned bomb-making materials, ballistic vests, rifles, ammunition, and a journal of combat tactics.”

Three other people were in custody, but the police were not revealing anything about them.

Brown said that Johnson told hostage negotiators he was upset about Black Lives Matter. “He said he was upset about the recent police shootings. The suspect said he was upset at white people. The suspect stated he wanted to kill white people, especially white officers.”

Brown told reporters that Johnson also said he had left behind improvised explosive devices.

The Toll: The killing of four Dallas officers and a Dallas transit cop is the single greatest loss of police lives since the 9/11 attacks.

They are:

-Lorne Ahrens, 48, Dallas PD, married to a detective, father of two children, 8 and 10.

-Michael Krol, 40, Dallas PD.

-Michael Smith, 55, married 20 years with two teenagers and described as a great cop who was not ready to retire.

-Brent Thompson, 43, Dallas Area Rapid Transit Force, married just two weeks to another officer.

-Patrick Zamarripa, 32, Dallas PD, served 10 years in the Navy.

The Target: The Dallas police department has been described as an unlikely target for Thursday night’s ambush that appears to have come out of racial frustration. Chief Brown has made efforts to defuse everyday tensions between cops and people on the street, and he’s been credited with doing a good job of it. Mayor Mike Rawlings said, “This police department trained in de-escalation far before cities across America did it.” Rawlings said during a press conference Friday. “We are one of the premier community policing cities in the country.”

Brown said, touchingly, “We don’t feel much support most days. Let’s not make today most days.”

Econ 101: New jobs jumped by 287,000 in June, putting down fears of a slowing economy and causing the stock market to jump. It’s the biggest monthly job expansion since last October.

Unemployment rose from 4.7 to 4.9 percent, attributed to more people entering the job market. But the economy and jobs will still be a matter of hot debate during the election season. Some analysts say the real unemployment rate is 10 percent because so many people gave up looking for work.

Charity Begins at Home: Florida Democratic Rep. Corrine Brown and her chief of staff have been indicted on federal fraud charges. They’ve been accused of establishing a fake educational charity for children and instead spending the money on vacations, a golf tournament, extravagant Washington receptions, and box seats at a Beyoncé concert as well as an NFL game. Brown has been in the House since 1993.

Trust: The NY Times reports that Hillary Clinton is trying to tackle her problem with trust — voters don’t trust her. A Times poll says voters think a good deal of the time Clinton tells them what they want to hear, rather than what she really thinks. Things like, “You can trust me.”

-30-