And, right here tonight, the faces of the fallen. The young father who cherished his baby girl. A special edition of world news tonight from dallas begins now. And good evening tonight from dallas. We traveled here after seeing the initial headlines with the rest of the country overnight, watching in disbelief. Tonight, an entire city in shock, as we learn more about the chilling motive. It was last night here in dallas, peaceful protests. The demonstrations rocked by gunfire, people running for cover. A fierce assault of gunfire. Police officers shot one by one. When it was over, 14 people shot, 5 Police Officers killed. The most deadly day for Law Enforcement officers since matt gutman is right here in dallas tonight. Reporter this is the moment the peaceful protest dissolved into chaos. Wait, wait, wait, wait. Reporter downtown dallas. Just before 9 00 p. M. Hundreds of People Racing for their lives. Screams and the sound of gunfire. Some hide behind cars, a woman runs, pushing a baby carriage. Officers, guns drawn, shuttling so many to safety. Please, over there, come on reporter they were the protectors but also the targets. Code three, officer down, shots fired, officer down. Get back Reporter Police taking cover behind buildings, trucks. The gunshots, relentless. But where were they coming from . Weve got a guy with a long rifle. We dont where the hell hes at. Reporter as the horror unfolded, theres a cop down . Yes. Four. Four . Reporter it seemed like a coordinated team of snipers. We believe the suspects were positioning themselves in a way to triangulate on these officers from two different perches in garages in the downtown area. Reporter from a nearby rooftop, this video, a witness sees a shooter, pacing back and forth with a rifle. Moments later, a Police Officer approaches. The gunman lunges. The officer killed in a hail of bullets. Hes down. Reporter as people flee into the night, just blocks from the protest route, on the second floor of the el centro college, a gunman finally cornered by police. S. W. A. T. Officers on floor two, theyre taking fire with the suspect shooting at police. Reporter and then an hourslong standoff, a Police Negotiator speaking with the shooter, identified as 25yearold Michael Xavier johnson, an army veteran. The suspect said he was upset at white people. The suspect stated he wanted to kill white people, especially white officers. Reporter but the talks break down. The suspect has told our negotiators that the end is coming, and hes gonna hurt and kill more of us. Reporter police take desperate measures. For the first time in Law Enforcement history, a robot armed with a bomb is sent in and it kills the suspect. But the danger wasnt over. The gunmen had warned there explosives planted all over. Downtown dallas in lockdown overnight. More than 12 hours after the shooting, the city is still on lockdown. Later, the allclear. No explosives found. 12 officers and 2 civilians shot. Five officers killed. Today Dallas Police chief david brown paying tribute. Some of the bravest men and women youd ever want to be associated with. We dont feel much support most days. Lets not make today most days. And matt is live with us. Police had initially described this as a coordinated attack with several shoots. But now they think it was the work of just one man . Reporter thats right. They had three people they thought might be connected. But tonight theyre telling us it was a single gunman acting alone. David . Thank you. And with the investigation zeroing in 25yearold military reservist. Pierre thomas on the chilling motive. Reporter micah xavier johnson, a former military man who was apparently harboring deep racial hatred, especially against white Police Officers. Johnsons Facebook Page content reveals some of that rage. He liked a page which said, kill everything blue that moves. Police say johnson embraced a radical form of afrocentrism. Johnson served in the army from 2009 until 2015, and did a tour in afghanistan. Today, when police searched johnsons home in meui texas, they found bomb making materials, ballistic vests, rifles, and a personal journal of combat tactics. This guy lived around the corner from me and was willing to take peoples lives he didnt even know. You know, its scary. Reporter johnsons sister took to facebook today, writing, the news will say what they think, but those who knew him know this wasnt like him. Police initially thought there were two gunmen. But tonight, Law Enforcement sources tell abc news they believe johnson was the lone gunman. And pierre joins us. What are your sources telling us theyre looking at . Reporter no criminal history. But the fbi is looking at his background to make sure he acted alone. David . Thanks. And s. W. A. T. Teams used a bomb carrying this the first time . We want to bring in martha raddatz. What have you learned was behind the decision to use the robot . They felt there was no other way to handle it. No other option. They can go in with remotely controlled cameras, with explosives on the robots arms, drop it, and come back and detonate it when they feel the threat is greatest. Ive seen them in iraq, theyre usually bomb disposal robotrobo and theyve saved a lot of lives over the years. Martha, thank you. We move on, and were learning the names of the pliole officers that died in the attack. One of them, a young father that survived three tours in iraq. So many byron pitts is also here in texas tonight. Reporter tonight, in a business where duty could mean death, their buddies and coworkers stood like steel. A somber salute to those who gave their all. 43yearold Brent Thompson leaves behind his new bride, married just two weeks. Officer patrick zamarripa, a loving father to his 2yearold daughter and veteran of three tours in iraq. Patricks anguished father saying no one should have to bury their child. His brother carlos. I was always his tagalong, always his shadow. Trying to be like something close to what he could be. Reporr michael krol, who served nine years with the Dallas Police department. His mother saying her son was living his dream, being a Police Officer. And late today, Sergeant Michael smith and lorne ahrens identified among those lost. Nine are recovering tonight. Among them, mother of four shetamia taylor, jumping to protect her 15yearold son. Taking a bullet to the leg. Shetamias sister saying her thoughts are with those who made the ultimate sacrifice. All she can do is say, lord be with those families of those Police Officers. Reporter here at the baylor medical center, a bit of encouraging news. Were hearing hero mom taylors surgery went well, and shes recovering nicely. Thank you. And it does appear that the targeted assault on Police Officers in dallas may not have been the only incident. A in tennessee tonight, police in bristol say a man targeted police and others, opening fire on a highway outside a motel. Investigators say he told he was troubled by recent shootings by officers. And one of the shootings, live streamed on facebook. We learn tonight about the little girl in the back seat that helped protect her mother. Gio benitez is in minnesota. Reporter tonight, were learning the identities of those two officers who stopped Philando Castile wednesday night in that deadly traffic stop. Officers Joseph Kauser and jeronimo yanez, who pulled the trigger. Castiles girlfriend Diamond Reynolds streaming the aftermath live on facebook. I will, sir, no worries. Reporter now tonight, she reveals she stayed calm because of her daughter in the car. Your 4yearold little daughter was right there in the back seat. She saw it all. Its okay, im here with you. She was trying to keep me calm and she constantly kept reminding me that if i didnt listen, he would kill me. Reporter in the midst of her own grief, diamond is calling for everyone to unite following the shootings in dallas. It hurts me whats going on in dallas. Because nobody should have to be taken away from their family. Reporter the state of minnesota has taken over the information. Police dash cam videos will be very critical here. The officers are on paid leave. And across the country and here in dallas, people are demanding answers, they want help. Donald trump moments ago with his message, and hillary clinton, i asked the secretary today, did she watch the live stream of the traffic stop . And also, if Police Officers are being blamed for the behavior a few . Reporter madam secretary, thanks for being with us here tonight. And as you know, weve been here in dallas today and we have sensed the real unease here, a sense that this country has reached a boiling point. D when youre in so many of these communities, theyll tell you that whats been captured on these smartphones, these cell phones, theyve been saying for years, that this is the reality that they face. And on the flip side, youve got Police Officers, the vast majority of whom are putting their lives on the line like what we saw here in dallas in the last 24 hours. So, as president , how would you bridge the divide . David, i think we have a very serious problem and we have to address it together, that means weve got to begin a conversation which is not an easy conversation. Where we are listening and respecting each other, where we are respecting our police but we are asking for criminal justice reform, including National Guidelines, and the use of force, especially deadly force. You know we need to listen to africanamericans who say they feel on edge all the time when they send their kids out. They dont know if they are going to come back. We should listen to the police who get up every day and go to a dangerous job and who are really worried about their own personal safety. And white people should listen to africanamericans, david. Lets be honest. We should be much more understanding of a lot of the challenges that africanamericans face. Reporter you saw that video that was live streamed on facebook in the aftermath of those moments in minneapolis and im curious, madam secretary, how you wrap your head around that what looked to be a routine traffic stop. I dont understand it. I watched it in horror and disbelief. A routine traffic stop, a routine arrest, escalating to the point where a gun is drawn and a life is lost. Thats why i am absolutely calling for National Guidelines about the use of force. Reporter secretary clinton, let me ask you, though, on the flip side, because when the gunfire broke out here in dallas, you saw so many officers running into the danger. I think the vast majority of Police Officers in are serving honorably and bravely. And thats why its very important we support their work, that we respect their service. We did request to speak donald trump as well. Heres a recorded message. A brutal attack on our police force is an attack on our country and our families. We must stand in solidarity with Law Enforcement, which is the force between civilization and total chaos. The deaths of alton sterling and Philando Castile show us how much work we have to do to make every american feel that their safety is protected. One more note tonight. The president is in world leaders, calling the attack in dallas a vicious, calculated attack. President obama has ordered flags at halfstaff at the when you say white house tonight. And theres other news were following this friday. Severe weather on the way this weekend. Also, Police Across america on high alert. Now, the order to thousands of police on the streets right now to patrol in pairs. A major zika headline, the first zikarelated death being reported. And dallas, determined to celebrate the fallen Police Officers. New mirafiber from the makers of miralax. Fall in love with a new daily fiber. Its the only fiber that supports regularity with dailycomfort fiber. So unlike others, mirafiber is less likely to cause unwanted gas. Love your fiber. New mirafiber. In a world held back by compromise, businesses need the agility to do one thing another. Only at t has the network, people, and partners to help companies be. Local global. Open secure. Because no one knows like at t. Ugh. Heartburn. G ] sorry maam. No burning here. Try new alkaseltzer heartburn relief gummies. They work fast and dont taste chalky. Mmmm. Incredible. Looks tasty. You dont have heartburn. New alkaseltzer heartburn relief gummies. Enjoy the relief. Next tonight, Police Across america on high alert. Departments in major cities ordering officers not to go out alone. Heres mara schiavocam. Of Police Officers on the streets, and on edge. All officers are urged to exercise extreme caution. Reporter in new york, washington, boston, and chicago, no officer is alone. Patrolling in pairs. At the capitol, members of the Congressional Black Caucus reacting to the dallas attack, and the Police Shooting deaths of alton sterling and Philando Castile. Texas representative marc veasey, emotional. Hoping his 10yearold son can grow up without the threat of police violence. Just because i want that for my son doesnt meant i dont support the police 100 . Reporter beyond washington, the black lives Matter Movement swiftly condemning the attack, saying in a statement, black activists have raised the call for an end to violence, not an escalation of it. And david, here in new york, the nypd reminding officers to, quote, remain vigilant. David . Thanks. When we come back, a string of tornadoes touching down. Were tracking severe storm watches at this house. 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Are these your little guys . My grandchildren. Reporter this grandmother terry and his son reece, 11 years old. He, too, thought it was important to bring his son to pay respects to the Police Officers and the whole community. How important though was it to bring him here to this memorial . Actually, its very important to us. I think it all starts with understanding. Reporter and thats what youre telling reece . Yep. Reporter and christian martinezcanchola, a third grade teacher here in dallas, here to support the officers. Just as last night, so many of her friends were at that protest. Its an important moment to teach the children. Yeah. They come from all different racial and ethnic backgrounds. Its just important to teach them, i think, that we are all human. A special edition of 20 20, 9 00 p. M. Eastern, right here from from Sony Pictures studios, its americas game. Wheel. Of. Fortune ladies and gentlemen, here are the stars of our show, pat sajak and vanna white. Thank you very much thank you, jim. Our philadelphia backdrop tonight. We like that. Thank you. You have a good time at the puzzle board, and ill check in with you later in the show. Hi good to see you all. You ready for this . Were ready. Well, ready or not, we have to do it. Get ready. Well do our first toss up. Its worth 1,000, and the category is on the map. [ bell chimes ] candyce. Lake tahoe