"What we witnessed in Ferguson and Baltimore and Baton Rouge was a collapse of the social order".
As an African-American police veteran, Mr. Jackson's death shows the risks that all officers of all races face.
On a July 10 YouTube video attributed to Long, he said he was speaking from Dallas after going there to join protests against police violence, and suggested that only violence and financial pressure will cause change. Photographs of it were attached to an email sent from an address that Long used. "I've experienced so much in my short life in these last three days have tested me to the core". The photographs appear to have been taken from inside a auto because a gearshift and a cup holder are visible.
In his letter to police, the president the job of a police officer is particularly hard "in this tumultuous hour". Within two minutes, there were reports of shots fired. Eight officers were killed in the Dallas and Baton Rouge attacks. It was his 29th birthday.
Racial tension in the United States has been especially high since a black former US Army Reserve soldier fatally shot five Dallas police officers who were patrolling a protest over the police shootings of Sterling and another black man in Minnesota.
"Everybody on this street depended on him, " she said.
At makeshift memorials, churches and rallies, Baton Rouge residents honored three slain officers while searching for ways to prevent more violence like the city has endured recently.
President Barack Obama has told law enforcement officials that Americans recognise, respect and depend upon the hard and risky work they do, a rallying call of support following the ambush killings of eight officers in Dallas and Baton Rouge. Edmonson said of questions they hope to answer.
"Officer Jackson knew this", he said, "when just days ago he asked us to keep hatred from our hearts".
Long, who served in the military, was deployed to Iraq for less than a year between 2008 and 2009, according to military records. (One side talks; the other listens.) She should have told NAACP members to listen to the reasonable fears of cops in US cities - especially during supercharged confrontations.
Long rented a auto in Kansas City after the Dallas shootings and eventually drove it to Baton Rouge, two law enforcement sources told CNN.
He did not specifically mention Baton Rouge or detail his plans for an attack in the letter.
"I'm not gonna harp on that, you know, with a brother killing the police". He declined to provide the AP with copies of the other emails he said he received from Long or with additional technical information about Sunday's email that possibly could help the AP conclusively verify Long wrote the letter.
Obama said the country should offer its "full-throated support" to "brave members of our nation's law enforcement community", pushing back against criticism that he has fomented anti-police sentiment during his tenure. "You get what I'm saying?" he said in the video.