The gunman, pictured above, who was killed during the Dallas police shooting has been identified as 25-year-old U.S. Army Veteran Micah X. Johnson. Although there are three additional suspects being questioned in police custody, Johnson told police officers that he “did this alone.”

Updated July 10, 3:30PM EST.

President Obama will return from a European tour to visit Dallas on Tuesday, July 12. As reported in a statement from press secretary Josh Earnest, the President will deliver remarks at an interfaith memorial service at the Morton H. Meyerson Symphony Center.

Dallas Police Chief David Brown said that police found the letters "RB" written in blood on the walls of the El Centro Community College, where Johnson, was killed. Police are still working to figure out what the letters represented, and are looking through the items in his home to find answers.

As reported, police said that prior to the standoff during which he was killed, he taunted police and said he would only work a Black negotiator.

“He just basically lied to us, playing games, laughing at us, singing, asking how many did he get and that he wanted to kill some more, and that there were bombs there so there was no progress on the negotiation,” Brown told reporters.

The search of Johnson's home provided evidence he was planning a larger attack using bombs, but decided to carry on in the wake of this past week's deaths of Black men at the hands of police.

The police chief also stated that he believes the shooter's military training, during his time at the Army Reserve, as well as his time in Afghanistan, played a significant role in the deadly nature of his attack.

“We don’t normally see this type of moving and shooting from criminal suspects," Brown said. "We’re convinced that the military style was a plan and that he had practiced this."

Additionally two of the three people arrested after the shooting occured have been released without charge, but one person was charged with a misdeamenor offense of carrying a prohibitive weapon.

Updated July 9, 4:00PM EST:

New information has surfaced about the Dallas sniper, Michah Xavier Johnson.

For six years beginning in 2009, Johnson served in the Army Reserve as a private first class with a specialty in carpentry and masonry, according to the military.

As reported, in May 2014, he was sent home from serving in Afghanistan after being accused of sexually harassing a female soldier. The harassment reportedly involved him buying her underwear from Victoria’s secret. He served in Afghanistan for six months before being discharged.

According to a friend, following his Army-recommended “other than honorable discharge,”he then “got in touch with bad folks and went all Black Panther.”

Johnson lived with family members in Mesquite, Texas where he enjoyed playing basketball and was described as a “loner” who followed Black militant groups on social media. 

Additionally, according to a court filing, the victim of his inappropriate behavior said she wanted Johnson to “received mental help,” while also seeking a protective order. As reported, he was ordered to avoid all contact with her.

After police searched his home on Friday (July 8) they found bomb-making materials, ballistic vests, rifles, ammunition and a personal journal that detailed combat tactics.

“The suspect said he was upset with white people and waned kill white people, especially white officers,” Dallas Police Chief David O. Brown said.

Original story below:

While people marched in downtown Dallas to protest the killings of Alton Sterling and Philando Castile, gunfire rang out into the streets. The shots started close to 9 p.m. and targeted police officers. Police believed the shooter had a sniper rifle and was positioned on elevated ground.

The shooting resulted in the deaths of five officers and wounded seven officers and two civilians. After the shooting, Johnson cornered himself in El Centro College. Police Chief David Brown said in a press conference that during negotiations, Johnson said that he acted alone and had no ties to terrorism.

“The suspect said he was upset about Black Lives Matter,” Brown said to media outlets, “he was upset about the recent shootings. The suspect said he was upset at white people. The suspect stated he wanted to kill white people, especially white officers.”

Brown also said that Johnson claimed there were bombs planted all over Dallas, but no bombs or suspicious items have been found. Brown then said that after an exchange of gunfire with Johnson, the Dallas Police Department decided to use a bomb-robot to detonate in the area where the suspect was cornered.

Police are continuing to search for and question additional suspects, just to make sure there was no other active gunman. The three suspects in police custody are not necessarily connected to the shooting.

Neighbors of Micah X. Johnson told CNN that he lived with his mother and kept to himself.