In texas, the only super tuesday state cruz figures he can win and must win. Cruz vows to take texas tomorrow and then catch fire. At that point it will become abundantly clear this is a twoman race. Reporter at the houston rodeo today, the cowboys are divided between trump youre a trump voter. You bet. Reporter and cruz. Hes more of a constitutionalist type. Hes not really a whiny yankee new yorker. Reporter donald trump was in virginia. Believe it or not, were going to unify this country. Reporter but hes being called a racist. All lives matter. Reporter claiming he couldnt hear the question, trump on sunday refused to condemn the kkk. Marco rubio today is adding that to his trump attacks. Hes unelectable now. He refused to criticize the ku klux klan. But trump got support from exnew yorker frank vick. When i was small, donald trump fce bit more about donald trump than a lot of people. Hes not a racist. Reporter Democrat Hillary Clinton today is jumping on the republicans. What we cant let happen is the scapegoating, the blaming, the finger pointing that is going on on the republican side. Reporter Bernie Sanders was in minnesota, besides vermont a state sanders hopes he can win. While back in texas ted cruz is fighting just to win his home state. The latest polling here in texas shows ted cruz has got a lead over trump, around 10 points, and it looks like that lead if the polls are accurate, which could be a big if, that lead is expanding. Live from houston, steve handelsman, news4. Steve, thank you. Voters in virginia will start casting their ballots at 6 00 a. M. Tomorrow. Hillary clinton is the latest candidate to push for support in Northern Virginia. Clinton spoke within the last hour at a rally at George Mason University in reporter david culver continues our decision 2016 coverage with what undecided voters thought of what she had to say. Hi, david. Reporter hi there, doreen. Yeah, Hillary Clinton actually just wrapped up within the past hour, and we showed you at 5 00 some of the undecided voters. It was interesting, the line had a good 1,000plus folks waiting for several hours. They had not only clinton supporters, but Bernie Sanders supporters, even republicans in the line, but at 5 00 we introduced to you a few undecided voters. Within the past 15 minutes we caught up with them again as they left the rally. We wanted to know what, if anything, changed. When we caught up with you in the last hour at 5 00, this is what you had to say before you went into the rally. Im actually Still Deciding but this might change my mind. Reporter now you have come back out, is your mind changed . I think a little bit, yeah. Reporter how so . She had a lot of good points to say, especially about health care and how shes going to keep it how it is and a lower cost. I think thats really important, especially in my future and my familys future, so i think that brought me closer to voting for hillary tomorrow. Reporter aaliyah, i want to you hear what you had to say before you went in, okay . Lets take a listen. Are you leaning towards one or the other right now . Right now bernie. Reporter could this change that for you . Perhaps, yes. Reporter does it change it for you or are you still a bernie fan . I still really like bernie but i appreciate her view on gun regulation so i really like that. Im still thinking. Reporter Still Deciding. Yeah. Reporter i know your mom and dad wanted you to be here. Were going to play what you had to say before you went in there. This is at 5 00. Take a listen. Im actually planning to vote for bernie but they really convinced me to come out here and check it out and so im willing to give it a shot. Reporter so the question for you, mom and dad right . Mom and dad are right. She seems very confident and most of guess i was a little unsure of how she felt about the gun laws and the obamacare and whether or not she would actually continue it, and so she definitely made it really clear. Reporter one of the things almost every Single Person we encountered told us was that they were just frustrated with overall noise. Didnt matter which party they were on, they were tired of the fighting back and forth and coming to a rally like this, they had john kasich here last week. They feel like they have an opportunity to at least hear in a clear way what they want, that is the substance, out of these elections and these campaigns. Coming up tomorrow at 6 00 a. M. , thats when polls are going to open here in the commonwealth of virginia, a battleground state. Well be here to cover it all, wendy. Interesting poll you just took there. It was interesting results. Thank you, thank you. And lester holt and savannah guthrie, chuck todd, the rest of the nbc News Political Team will bring you the super tuesday results in a live report that starts tomorrow night at 10 00 here on nbc 4. You will want to nbc washington app. Well be sending out breaking news alerts when a winner is declared in both parties primaries. You can watch the victory speeches there too. Right now we are learning more about the man who is accused of killing his wife and then turning a gun on three local Police Officers, killing a rookie on her first day on the street. That suspect, Staff SergeantRonald Hamilton, is a decorated veteran of two deployments to iraq, and he was most recently working at the pentagon. Well, now he is in jail. He is being held without bond. Our Northern Virginia bureau chief julie carey joins us live from the scene of this tragedy. Julie . Reporter a vigil is set for tomorrow night at the scene of this terrible crime. This one to remember the suspects wife. Her name crystalh hamilton. She was a counselor to wounded warriors, but they also fear she was hiding the Domestic Abuse going on behind closed here. Commonwealth attorney ballpaul t and other prosecutors coming to see the crime scene, to tour the house where crystal hamilton was shot and killed allegedly at the hands of her husband. When officers arrived to help, Ronald Hamilton reportedly turned an Assault Rifle on them. Rookie officer Ashley Guindon guide from her wounds. Two other officers were seriously injured. Clear to see in the front porch glass a large bullet hole. Always call this an officers worst nightmare, to go to a routine call and wind up dead. Reporter in court today the accused killer showed no emotion. He will be held without bond on capital and firstdegree murder charges. New Court Documents reveal after his surrender, hamilton, quote, made statements that he shot his wife and the Police Officers. Back at the woodbridge home, a memorial to victim crystal hamilton grows. Her sister believes hamilton kept quiet about trouble with her husband. Her life was not taken in vain. I feel like this is just the beginning of somethin reporter wendy howard tells me when the couples 11yearold son returned home from a sleepover saturday, cotell his parents had been arguing. Howard said her sister yelled to her son to run. As he fled, he reportedly saw his dad pick up his mom and throw her down. Howard says the boy heard gunshots as he ran down the stairs and out of the house. Now howard is hopeful her familys terrible loss will open others eyes to the issue of Domestic Violence and the danger of remaining silent. If you know of people going through the same thing my sister im sure was going through and never said anything about it, dont be afraid. This is your opportunity. If you dont get out for yourself, get out for your kids, get out for your family because you wouldnt want this to be how you remember. Reporter as you can see, friends continue to come to pay their respects to crystal hamilton. Incidentally, this is not the first time Ronald Hamilton has been in trouble with the law. Charged with assault in 2007 in another state, was allowed to enter a Diversion Program to avoid any jail time. Reporting live from woodbridge, im julie carey, news4. This is Darcy Spencer at the Prince William county Police Department in woodbridge, virginia, where you can see a patrol car here draped in black bunting. All of the flowers and mementos the members of the community continue to drop off as they pay their respects to this fallen officer who was killed on saturday. Just today the Prince William county Police Department announced the funeral arrangements. Also this evening, there is going to be a procession here in woodbridge where her body will be taken to the chapel where that funeral will be held tomorrow. Im going to have all those details coming up in a live report at 6 30. In woodbridge, Darcy Spencer, news4. D. C. s new plan to improve how it responds to emergencies will start in a few weeks. A private ambulance could pick only on news4 Mark Segraves takes us inside the company that runs those ambulances to tshow s how that operation is going to work. Mark. Doreen, yeah. We wanted to know when we see these ambulances, there will be dozens and dozens of them on the streets of d. C. In just a matter of weeks, and when we sat down with the company, we asked them, what happens if a citizen sees one of these glancambulances on streets and tries to flag one of them down . Reporter every 911 call for every medical emergency will still be anticipated swered by and ems but if they decide your emergency isnt life threatening, they will request a private ambulance be sent to trment you. Amr tells news4 they wont have their ambulances stationed in firehouses. They will be patrolling the city based on data that can 911 call trends. They say rush hour will also play a factor. Our posting plan changes throughout the day. As traffic is coming into d. C. , obviously in the morningtimes, our posting pattern will be different than when traffic is flowing out of d. C. Reporter so what if you need medical help and you spot an amr ambulance nearby . Can you flag them down . Amr tells news4 the answer is yes. If that occurs, our emts would start providing care but we would immediately notify d. C. Fire and ems and request their response and guidance. Reporter amr is hiring more than 170 people, mostly certified emts. Were getting a lot of people who are fresh out of school who are interested in finding a career. Were getting a lot of people from volunteer Fire Departments around the area who are looking to do this full time for a living. Were getting people who are coming out of hospitals and clinics who have the certifications. Reporter and just like the d. C. Fire department, d. C. Residents will get priority in hiring. We want people who are familiar with the community and tied to it. Those are the kind of people who looking to do here. Reporter now, there will be about 12 to 24 ambulances on the streets of d. C. 18 hours a day. This all should start by the last week of march, and those emt jobs are about 170 of them available. They pay about 21 bucks an hour. Wendy, back to you. Mark segraves. And right now were finding out when the charlottesville man suspected in the murders of two Virginia College students will enter a plea in both cases. For the first time in a decade Supreme CourtJustice Clarence thomas spoke from the bench during oral arguments. And the man arrested for filming sportscaster erin andrews through a hotel peephole detailed h heow developing right now, doctors are fighting to save a man who was shot in southeast d. C. It happened just after 4 00 this afternoon. On langston place. Police say when they got there the man was not responsive and he was medevacked to a hospital. A tweet from police say they are looking for three teens in connection to the shooting. This was one of three shootings within an hour in southeast. It is unclear if all three are connected. Also developing tonight, new indictment returned against that Prince Georges County school aide who is accused of child pornography. Chris lawrence has details. Hes in the newsroom. Prosecutors have just upped carraway faces from 8 to 13, all of which involve sexually exploiting children. Theyve also increased the number of victims from 6 to 11 and those children are all between the ages of 9 and 12 years old. Prince georges county police say theyve discovered as many as 17 victims but not all of them have been included in this indictment. Todays documents also specifically accuse carraway of engaging in crude sexual acts with these children. Some of those sexual acts and videotaping took place at judge sylvania woods elementary where carraway had been working as a volunteer aide. Hes going to be in federal court on friday. Doreen . Chris lawrence, thank you. The man suspected of killing two Virginia College students will enter a plea agreement this week that could help him avoid the possibility of the death penalty. The prosecutor in Albemarle County says Jesse Matthew will enter a plea in court on wednesday. Hes charged in the murders of Virginia Tech student Morgan Harrington and uva student hannah graha life sentence for a sex assault in fairfax. Well, today Supreme CourtJustice Clarence thomas broke his tenyear silence during arguments, oral arguments in the high court. He asked ten questions of a Justice Department attorney who was defending a federal gun law. That law bans anyone who has a misdemeanor Domestic Violence conviction from owning a gun. In years past Justice Thomas has offered several reasons for not asking questions from the bench. He has noted that lawyers usually only have 30 minutes to present their cases and that the judges have, in his words, a lifetime to go back in chambers and argue with each other. Parents of more than 300 Montgomery County students are being warned that their childrens personal information may be at risk. The names and addresses of the special education students were on a computer that was stolen. It happened during a breakin at west ed. A contractor that works at the school system. The school board says they arensu even be accessed because its password protected. Howard University Founders library is probably the most recognizable building on campus. Now its getting its own recognition and a makeover. Tom sherwood explains what this means for the buildings future. The library opened in 1939. Today its a national treasure. Reporter Founders Library, designed after Independence Hall with its distinctive clock tower. Its actually a historic image of the long walk. Derrick williams, a National Merit scholar, graduated here in 2007. He now oversees howards campus plan as an architecture student he remembers exploring the library. I recall walking in the stacks and looking at the steel angles and understanding how this building was put together structurally. Reporter now the library is officially a national treasure. It qualify it is for Technical Assistance and tax credits to spur fundraising for renovations. Howard president william frederick, himself a howard graduate, said the designation has one major goal. To embark on a designation on a project that we feel will restore the Founders Library to its full glory. Reporter the renovation will take a couple years of planning and fundraising before work can even begin. The work will preserve the librarys history anda te architecture. Obviously the National Trust is the preeminent organization, you know, thats focused on the preservation of Historic Buildings and places of historic significance. Reporter theres no firm date for any parts of the library to close yet, but all the students, everyone is excited. This is such a super building. It has a great exhibit of rights. Its wonderful. How much we love our libraries. Thats wonderful. Lots of old books in there. Going to be a lot of new digital stuff inside too. Going to be great. Thank you, tom. A developing story in nashville, tennessee. Emotional testimony late today from tv sportscaster erin andrews as she took the stand in her stalking trial. Andrews is suing Michael David barrett and the manager of the marriott in nashville for 75 million. Bare rot bobarratt booked a roo to andrews in 2009 and secretly recorded nude videos of her and posted them to the internet. He claims he did it because he was in a financial bind and says he picked andrews because of her popularity. He told the New York Post and espn scandal. Fox news and cbs. Everybody put up that i was doing it for publicity and attention and that ripped me apart. Barrett took voerved 2 1 2 yn prison for stalking andrews. Right now police in Prince Georges County are looking for two men after a shooting put several area schools on lockdown. Plus, why you should not donate to a go fund me page for a Fallen Police office