Announcer from nbc news World Headquarters in new york, this is nbc nightly news with lester holt. Good evening. There are late developments in a tense and frightening encounter this afternoon at a Baltimore Television station where a bomb scare ended with police opening fire on a suspect. Employees fled the station after the costumedressed man displayed what appeared to be a bomb with a car set ablaze in the parking lot, the suspect emerged and was confronted by a Police Tactical team. Nbc news correspondent Pete Williams has details. There is the video. Reporter police say early this afternoon a man wearing an animal costume, a surgical mask and sunglasses walked into a Fox Television station in baltimore demanding to air a government conspiracy theory. Station employees said he was wearing what appeared t said he had a bomb. The building was evacuated he said i dont want to hurt anyone, i dont want to hurt you but i want my message to be heard. Reporter just before walking in police say he set his car on fire. Some pictures live streamed by a station employee on social media. He then walked out of the station where police were waiting when they told him to show his hands, he refused and police say they fired at him when he wouldnt stop. When he walked out on the street, he posed a threat this to this community and officers and they were forced to use their real guns to shoot the suspect. With the man lying on the ground, robot devices were called to remove the vest and he was carried into an Armored Vehicle and taken to the hospital for treatment of gunshot wounds. Its become all too common in america for us to gather like this to examine the bizarre dangerous behavior of a singular individual. Tonight Authorities Say no explosives were found. Stuffed into the vans vest turned out to be candy bars wrapped in aluminum foil. Lester . Thank you. Dramatic raids on the other side of the country today. The fbi moving on the brother of one of the San Bernardino killers. Arrested amid allegations of a sham marriage conspiracy and secrets and lies under oath. Nbcs joe fryer explains. Reporter before dawn, the fbi and local authorities moved in on two homes arresting three people with dies to San Bernardino shooter syed farooks his brother, also named syed, his wife and the center of a sham marriage. She is married to enrique marquez. The man charged with providing guns used by syed farook. The marriage between marquez and chernykh was arranged so she could stay in the u. S. She paid marquez 200 a month and didnt live with him. In fact, she actually lived with another man. November marquez and chernykh discussed mutual anxiety for the upcoming immigration interview due to the lack of contact with each other. Prosecutors say he was concerned about being imprisoned for fraud. Authorities say the other two suspects were in on the sham. The three in court today are not charged with terrorrelated offenses. Neighbors say they felt remorse after the mass shooting. They have no control of what their brother did. Reporter so far no indication others were involved in the terror attacks carried by syed farook and his wife. Which left 14 people dead. Lets turn to the 2016 race and harsh words for ted cruz. John boehner caught in tape in an unguarded moment revealing what he really thinks of the man trying to stop donald trump calling him lucifer in the flesh. As nbcs boehner didnt stop there. Reporter ted cruz old enemy now pulling out the political pitch forks. Former House Speaker john boehner. Lucifer in the flesh. I have never worked with a more miserable son of a bitch. Reporter boehner commenting candidly in california. This is not recorded or broadcast. Over my dead body. He allowed his inner trump to come out. Reporter cruz today in indiana. John boehner in his remarks described donald trump as his texting and golfing buddy. Truth of the matter is, i dont know the man. Ive met john boehner two or three times in my life. Reporter but to stop trump, cruz needs help from more members of the gop including the d. C. Establishment hes been fighting for years. During the 2013 shut down famously huddling with members of congress at this d. C. Restaurant to try to turn them against leaders like boehner. Cruz considered by someone of the most hated man on capitol prove hes the one that can work with washington picking up new congressional endorsements today and sending top staff to argue senator cruz has no shot. Last tuesday was the nail in the coffin. Indiana is when he realizes. Reporter cruz and fiorina trailing trump by eight points in the hoosiers state as they barn storm it together for the first time as a ticket. Cruz Campaign Sources tell nbc news, fiorina was one of five finalists for the v. P. Slot. Shes a nice woman, but it wont help. Reporter they have to prove they can stop trump here but for the front runner, even a shutout wont help. Less pressure in the high stake state. If we win in indiana, its over. Is indiana a mustwin for you and the senator . Indiana is very important, and i think were going to do really well. It will be a fight. A Cruz Campaign aide telling me they dont expect to shutout trump. Cruise himself at the Battle Ground status arguing what happens here could keep the country from, in his words, plunging over the cliff. Lester . Halle, thank you. Lets turn to the streak of brutal weather striking across the south and state of emergency in biloxi, mississippi this evening. The water rapidly rises trapping people with no way out and as nbcs Miguel Almaguer tells us, a new threat is brewing. Reporter it hit biloxi, mississippi like a wall of water. Tornado warning has been issued. Reporter the city bracing for tornados. Pretty bad right now. Reporter was pounded with steady rain. Ten inches of water in some spots. The deluge triggering evacuations and rescues, men, women, children pulled to safety. Nearly 200 emergency calls came in. Within the past ten minutes, ive seen it rise at least four feet. Reporter rescues continued all da equipment. A highway submerged under 2. 5 feet of water. Its never flooded like this. Reporter water poured into homes. Neighborhoods turned into islands. Devastation. Its a total loss. Reporter it wasnt just the rain, there was wind, too. Theres got to be 65 or 70 mile an hour winds. Reporter it comes after a deadly week of weather across the country from california that is wild. Reporter to missouri and iowa. Tornado on the ground right there, guys. Reporter at least 22 tornados in seven states. Everything from 18 inches down is a total loss. Reporter tonight back in mississippi, the water is reseeding but the damage is just now being tallied. The rain stopped but water is rising in local rivers and creeks. Were not far from the biloxi river where it is clearly over to peak and crest. This entire area is under flash flood warnings. Looks like its running pretty quickly. Miguel, thank you. With final exams just around the corner, a number of American College campuses including harvard are being hit with the mumps. Its a highly contagious decide disease thats forcing some students into quarantine too stop the spread. We get details from nbcs kate snow. Reporter from her third floor room, freshman elaina is in isolation this week with the mumps sending us this video. I got quarantined on monday after i went to Harvard UniversityHealth Services and basically showed symptoms like face swelling and cold. Reporter with more than 40 students sick so far, fears it could affect finals, even graduation. Weve been scared ourselves. Reporter other College Outbreaks in indiana, illinois, connecticut. Why so many . College campuses are unique. Colleges are a place where people have extended, prolonged facetoface contact. In class, in dormitories. Reporter even though most College Students have to prove they had shots as kids, the protection against mumps can ware off after ten years. Mumps is extremely contagious like the common cold but with swollen painful saliva glands, fever and fatigue. There is no treatment but most recover in a few weeks. I was quarantined for a week. Reporter tyler gray was vaccinated when he was young, but still got sick. I didnt think anyone still got the mumps. Of course, i was calling my parents, and they were freaking out. Reporter Health Officials say there are no plans to give booster shots to students. They are hoping that kids leaving campus for the summer will mean the end of the outbreak. Kate snow, nbc news, new york. Distracted driving. The phone app snapchat is being sued for contributing to a horrific crash. A teenager accused of slamming into an uber driver at more than 100 miles an hour while using a snapchat feature that clocks your speed while taking a selfie. Here is nbcs tom costello. Reporter it was supposed to be a Selfie Snapchat of life in the fast line, 107 Miles Per Hour to be exact but end in a highspeed crash with twisted metal, serious injuries and this law site against 18yearold crystal mcgee, the alleged driver and snapchat it self. It app happened in atlanta. Mcgee was driving at 80, 90 and 107 using a Snapchat Filter that calculates speed. At 107 she crashed into another driver who suffered serious brain injuries. While on the way to the hospital, mcgee allegedly snapped this selfie and wrote, lucky to be alive. The victims attorney claims mcgee had been pushing the speedometer and watching her app. This is how it works, you record a video or photo on snapchat and add the filter to calculate how fast youre going. In this case, 39 Miles Per Hour. Snapchat warns not to use the app or filter while driving. Press and add a caption and send. Reporter snapchat claims 60 of 13 to 34yearolds use its app. Traffic researchers say distracted driving now accounts for a stunning 70 of traffic accidents. We know that if you take your eyes off the road for more than 2. 5 seconds, the crash risk increases so if you try to look at the app to figure out how fast youre going, youre not looking at the road. Reporter tonight 18yearold crystal mcgee is not responding to our requests for our comment. Snapchat says no snap is more important than somebodys safety. We discourage the community from using the speed filter while driving. Tom cost tell u. S. Officials now blame the Syrian Government for a deadly air strike on a pediatric hospital. At least 27 people were killed in the attack in the Doctors Without Borders hospital in aleppo, which the u. S. Says was targeted. Among the victims, many children and vital medical personnel. We get more from nbcs bill neely. Reporter amid the rubble of what was a childrens hospital, terrible scenes. The desperate trying to save lives, the distraught knowing their loved ones were lost. Dozens died, children, doctors, nurses. Thats my family he screams. I lost my family. Among the dead, one of the last pediatricians in syrias biggest city. Dozens were injured in what the u. S. Called deliberate air strikes on a known hospital tied to the aid group Doctors Without Borders. We obviously find this attack reprehensible. Reporter missiles targeted the innocent as they slept, a war crime under internatl it is impossible that none of the courses fighting in aleppo didnt know that this was, you know, a medical facility. Reporter the u. S. And syrians here blame the government. Why did we deserve this she asks . Other medical centers have been hit this week, as the last traces of a seize fire disappear. Its catastrophic says the u. N. Peace talks collapsing. How can you have substantial talks when you have only news about bomb being in shelling. Reporter a massacre of children and of the doctors who treat them. Bill neely, nbc news. Theres more to tell you about tonight. Still ahead, you are always saying you dont have time to exercise. What if you could cram the benefits of a 45minute workout into one minute . The fitness strategy that has a lot of people talking. A precedent change towards the u. S. Military draft. S. Lergens that come from pets, pollen and dust. Just one claritin provides 24hour relief of symptoms that can be triggered by over 200 allergens. Yeah, over 200 allergens with claritin, shes not focused on her allergy symptoms. Shes focused on winning. With powerful, 24hour, nondrowsy claritin, my allergies dont come between me and victory. Live claritin clear. Fight heartburn fast. With tums chewy delights. The mouthwatering soft chew that goes to work in seconds to conquer heartburn fast. Tum tum tum tum. Chewy delights. 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That doesnt mean youre over and done with the workout in a minute, but it does mean that shaking up your routine could mean you get in shape in a lot less time. Morgan radford explains. Reporter exercise. We all know we should make it a priority and thing to drop out of a busy schedule. Trainer andrew hears it all the time. They have kids, they have a busy job. The main thing comes down to time. Reporter researchers in canada wanted to see if there was a way to get more of the of the workout in less time. If you have ten, 15 minutes in the day, you can get in a quality workout thats going to either maintain your fitness or improve your health and fitness. Give me everything you got. Reporter they found one minute of super intense exercise in a short routine can have benefits. If youre willing or able to go very hard, you can get away, if you will, with a surprisingly small dose of exercise. Reporter the study compared men who exercised for 45 minutes at moderate intensity with those who did high intensity interval training for ten minutes. After a twominute warmup the high intensity sprinted for 20 seconds and road slowly for two minutes to recover. They did that three times through. The High Intensity Group put in a total of 30 minutes a week. The moderate intsi health benefits. It sounds easier than it is. Sprinting for 20 seconds at high intensity means going all out, as hard and as fast as you can. Youre saying this isnt a quick fix for a couch potato . Absolutely not. The body responds to progression. You cant pound it and expect to see results. Reporter the good news, you might get those results in less time than you think. Morgan radford, nbc news, new york. Were back in a moment with news about the ice cream man who created the sound track to summer in so Many American neighborhoods. Some cash back cards are, shall we say, unnecessarily complex. 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Cardell hayes pleaded not guilty today to four charges including seconddegree murder. Police say hayes shot and killed smith and wounded smiths wife after a traffic ci aggressor that night. A new heated debate is brewing in washington. The first step in a process that could lead to women beg required to register as the draft as young men are required. The House Armed Service s committee improved the prove in a close vote. It comes after the Defense Department lifted all gender based restrictions on front line combat. The bill goes to the full house for a long battle where the fate lies ahead. A passing to note tonight, the man we hind a familiar tune e hind a familiar tunbhind a faee to generations of ice cream lovers. Les waas died. He was behind the jingle in Ice Cream Trucks written over a half a century ago in philadelphia letting kids know the Ice Cream Truck was near. He was 94 years old and that music sending a lot of kids to the front door i suspect. 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Call or go online to learn more about a free trial offer. If you cant afford your medication, astrazeneca may be able to help. Finally tonight, kids learning to chase their dreams at a full gallup. They live in a city where 25 live below poverty but they are getting a chance to become cowboys and cowgirls with most canyons are made of concrete. Here is nbcs rehema ellis. Reporter in a battered philadelphia neighborhood, its the last thing youd expect to see. Inner city kids riding high. When im on the horse, i dont think about whats going on out here, but when im off, you hear everything. Like the gunshots, the news, people dying every day. Reporter he first saddled up when he was 10. They called me the concrete cowboy and i laugh. Reporter the sight of the unlikely cowboy brings smiles to the whole neighborhood. Its all thanks to malik divers, with donations, he built a makeshift stable where hes able to teach boys to ride for free. In exchange, they have to work. Once they start learning, they start staying out of trouble, give them something to do and keep them busy. Trouble is hard to avoid. One of his young riders dominique was shot and killed last year. Its a lot of senseless killing, and you know, these kids, they need things to do. Places to go. Things that will make them happy. Reporter do you think riding changed you . Yeah. I think i was 16 turning 17 when i stopped riding, and my temper flared. Like, i got angry so fast all the time but now, i just go for a little ride, i dont have to worry about nothing. Reporter its a momentarily break, pushing city life to the background only for a few hours a day. A young man sitting tall in the saddle. Rehema ellis, nbc news, philadelphia. What a great sight. Thats going to do it for us on a thursday night. Im lester holt. For all of us at nbc news, thank you for watching and good night. Thursday night. Im lester holt. For all of us at watching and good night. Ranking from top to bottom. 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