Doesnt make sense you have to wait until 21 to get a handgun, but you can get a weapon like the one used in florida at 18, but tonight, why doesnt his plan raise the age . The adult film star and her ultimatum. Giving the president until noon tomorrow. The o. J. Simpson interview that was never seen. Saying what he is about to describe is only hypothetical. Good evening. As we come on the air in the west, we begin with a string of deadly bombs. Authorities now investigating if there is a possible serial bomber on the loose in austin, texas, tonight. Today alone, a deadly package bomb exploding, one of two attacks today. Police say a teenager was killed and a woman badly injured when the device went off at their front door. A third blast just days ago. And while police were at the second scene today, the third went off elsewhere. Abcs alex perez leads us off from austin. Reporter tonight, austin, texas, on edge. Investigators scrambling to track down a possible serial bomber. Three mysterious explosions in ten days, just miles apart. We got two people down, it looks like one in the door entry. Reporter 6 44 this morning, a deadly blast. A 17yearold africanamerican teen killed, an adult woman injured when they opened a package they discovered on their front porch. Neighbors horrified. I saw an ambulance with my neighbor on a stretcher, and, so, that was that was very terrifying for me. We have a trauma activation. Penetrating trauma, head and torso. Reporter then, at 11 50, another explosion just three miles away. Authorities rushing from the other crime scene. The package device detonating when an elderly hispanic woman handled it. Shes critically injured. All of a sudden, we just heard an explosion, and i just felt it, like, move the ground. And thats when we walked out and we saw the smoke and the lady laying on the floor. Reporter police evacuating the neighborhood, putting small children on buses. Alerting everyone not to touch any suspicious packages. Weve got a pattern of incidents that have occurred in this community over the past ten days, and so that we believe are related. Reporter its the third bombing since march 2nd. All within this 14mile radius. The first killing, 39yearold anthony house. Police saying the packages not sent in the mail. They believe they were left on front porches in the middle of the night. These devices can explode in many ways, either by being moved or by being opened. If you see something thats out of place, do not handle it. Reporter federal and local authorities searching for Surveillance Video in these neighborhoods. They have no description of the suspect. You have heard something, however trivial you may believe it to be, that may be the piece of information that we need to crack this case. Alex perez joins us live tonight from the scene of the third bomb. And alex, authorities are not ruling out the possibility of a hate crime . Reporter thats right, david. Authorities still on the scene here. Investigators say a possible hate crime is one of the possibilities on the table right now. Two of the victims were black, one of them was hispanic. Authorities say at this point, theyre not ruling anything out. David . Alex perez leading us off on a monday night. Now, to new reporting here this evening after that awful Helicopter Crash here in new york city. The final images of the five passengers killed, recording their flight just minutes before the tour helicopter went down in the east river. Tonight, the pilot, the only survivor, now saying one of the passengers bag straps or a safety harness tether got caught on the fuel switch. And weve learned the passengers were unable to free themselves from their harnesses quickly enough, as that chopper went underwater. Abcs david kerley is on the scene for us. Reporter tonight, new images inside that helicopter flight. Smiles all around during takeoff. Just minutes later, tragedy. Zerolimahotel, mayday, mayday, mayday. Zerolimahotel, whats the matter . You okay . Engine failure. Reporter the sunset photo and sightseeing tour going down in the east river. Marine 6 does have one diver in the water. Reporter the five passengers unable to escape the sinking chopper in icy water. It almost looked very surreal. And next thing we know, its approaching the water, slowly. And then it just completely crashed and then sunk. Reporter the lone survivor, the pilot, telling authorities that a tether or part of a passengers harness snagged one of the fuel levers, shutting it, bleeding the engine of fuel. Tethers are used to allow photographers, or in this case, a coast guardsman, to move around a chopper in flight. But the illfated flight may have suffered another disaster. It was equipped with floats used for Emergency Water landings. But as the new york chopper nears the water, the pilot says the right float fails to inflate properly. The helicopter slams to that side. If those floats had worked properly, we would have had five people probably still alive. Reporter the five passengers in their late 20s and early 30s. Among them, a journalist, a firefighter, an argentinian tourist and two tour company employees. None of them able to free themselves from the harnessing system under water. Passengers on a similar flight complained about those harnesses. Somebody who flew in a sister helicopter last night said it was not easy to get out of, when theyre on the ground, to get out of their harnesses. We will be looking at this helicopter to see whether the harnesses were functioning. Reporter liberty helicopters, according to federal authorities, has two deadly incidents, including a 2009 crash with a small plane that killed nine. David kerley with us live tonight right along the east river there. And david, you mentioned those harnesses. They were difficult to get out of. That the Police Divers had to cut all the victims free . Reporter these are multipoint harnesses, they come over the shoulders, sometimes over the thighs. The passengers may not have been familiar with the release. Of course, the pilot was. He was able to get out of the aircraft, david. David kerley with us tonight. David, thank you. And developing at this hour, the third noreaster to slam the east coast in less than two weeks. Set to hit tonight. The system stretching from North Carolina to new york city to boston to maine. Icy roads and Poor Visibility for the ride home near fayetteville, west virginia. This is the system tonight, set to bring up to two feet of snow in some places where they have already lost power for days already. Abcs Adrienne Bankert from massachusetts tonight. Reporter tonight, round three. A winter storm already bringing heavy snow to the ohio valley, downed trees to the carolinas, roads dangerous to drive on. The storm is moving to the north and east, where communities brace for whats become a neverending story. The third noreaster in 11 days. Millions in the northeast are still recovering from backtoback storms that left some in the dark, no power to charge their phones. Without heat or hot water for over a week. We will be enacting a snow emergency starting tonight at 7 00 in the city of boston. The Boston Public Schools are closed for tomorrow. Reporter in quincy, massachusetts, paul kopps basement destroyed by last weeks storm. Never had a problem until this last storm. And now, you feel a little bit of unease, every time you hear about another one coming. Reporter more than a thousand Flights Canceled through wednesday. Eli swan was headed to orlando. Theres no way that im getting out. Reporter the south hammered this weekend. Up to 90mileanhour winds downed trees, killing two in texas. And Adrienne Bankert with us from quincy, massachusetts, tonight. And adrienne, i know they are worried about the high winds, because theyve been battered now in two noreasters already. Reporter thats right, david. Were talking over 60mileperhour wind gusts. And up to two feet of snow. With the high tide rolling in, theres the concern for flooding again. David . And also those already loosened power lines. Adrienne, thank you. Lets get right to rob marciano. Hes live along new yorks west side highway tonight. And unbelievable, a third, rob, in ten days. Reporter indeed, david. This ones a little bit different. The good news is, it will track a lot farther off the coast. The bad news is, that means it will be mostly snow for most people and folks that live on the coast are going to get hit hard. Right now, its taking shape off the carolina coastline. Still snowing in raleigh and richmond. It will rapidly intensify tonight. By the morning commute, from Atlantic City to albany to boston, just a miserable, and snowing heavily. Blizzard conditions potentially for the evening commute, in and around boston, with heavy snow continuing there. Could see 12 to 20 inches in eastern new england. 6 to 12 inland. 3 to 6 just outside of new york. And its almost st. Patricks day. David . All right, rob marciano, thank you. And at the white house tonight, President Trump revealing his plan for gun safety, and critics are now asking about a promise he made that is not in the proposal. Also at this hour, breaking news from the white house on the russia investigation. We have it all, involving what a committee in the house is now saying. Heres abcs chief White House CorrespondentJonathan Karl. Reporter less than two weeks ago, President Trump boldly declared hes not afraid to take on the nra. Some of you people are petrified of the nra. You cant be petrified. Reporter but now, the president seems to have caved entirely to the gun lobby on School Safety. The most glaring example, raising the minimum age to buy an assault weapon. Were going to work on getting the age up to 21 instead of 18. It doesnt make sense that i have to wait until im 21 to get a handgun, but i can get this weapon at 18. I dont know. Reporter parkland survivor sam zeif had pleaded directly to the president for the age increase. I turned 18 the day after. Woke up to the news that my best friend was gone. And i dont understand why i can still go in a store and buy a weapon of war. Reporter a week later, nra officials came to the white house and the president tweeted, good great meeting in the oval office. But now, the just released white house plan on School Safety calls only to study the issue of age restrictions. In the immediate aftermath of the parkland shooting, the president said he supported several other initiatives opposed by the nra. He talked about supporting universal background checks, about taking guns away from those identified as a threat, even without due process. What happened to all those proposals . Right now, the president s primary focus is on pushing through things that we know have broad bipartisan support or things that we can do from an administrative perspective that we can do immediately. Reporter is there anything in here that the nra opposes . Look, the president still has in this plan the age limit increase, and that is part of reporter not as federal policy, right . One of those things will be reviewed on what the best path forward is on that front. So, lets get to Jonathan Karl live at the white house tonight. And jon, some of the lawmakers in that meeting that day with the president are now responding to this . Reporter in fact, dianne feinstein, who sat right next to the president and seemed pleased with what he said back then, looks at this new proposal and calls it a shameful abdication of the president s responsibility to lead. Adding, shame on you, mr. President. And jon, i mentioned a moment ago, theres late word coming in from the house intelligence committee, that they are moving up to wrap up their russia investigation . Republicans on the committee saying they have found no evidence of collusion . Reporter these are the republicans that control that committee. The finding is hardly surprising. And given how partisan that committee is, its not going to have any impact on the overall debate over russia and it certainly wont stop the investigations that continue, david, in the senate and, of course, robert mueller. Jon karl starting another week at the white house. Jon, thank you. Meantime tonight, President Trump is facing an ultimatum from that adult film star and the deadline is noon tomorrow. Heres abcs chief National Correspondent tom llamas tonight. Reporter tonight, Stormy Daniels trying to cut a new deal with the president. The porn star, seen here in a photo she shared on social media, offering to return the 130,000 payment she received from the president s personal attorney, michael cohen, but with the stipulation that she would wire the money to an account designated by the president. If accepted, daniels Attorney Says it would resolve their pending disputes and daniels would be free to speak openly and freely about her prior relationship with the president. And to be able to use and publish any text messages, photos and or videos relating to the president that she may have in her possession. Did your client, Stormy Daniels, have sex with President Trump . Yes. Reporter theres no doubt about that . No doubt in my mind. Reporter daniels Attorney Says the president has until noon tomorrow to accept the offer. This latest move, another attempt by daniels to prove the president , who has denied the affair, is trying to, quote, shut her up. Daniels lawyer has already argued an agreement signed 11 days before the election is null and void, because thencandidate trump didnt sign it. Why is that so important . Is she trying to sell her story . Shes not trying to sell her story. Its important to her, because the amount of misinformation that has been out in the press and the media, especially over the last six weeks. And mr. Cohen and others associated with mr. Cohen are correctly responsible for that misinformation and she wants to set the record straight. This is about the truth. Its about a search for the truth. Reporter and david, tonight, neither the white house nor the president s personal attorney, michael cohen, have responded yet for comment. Again, that deadline is tomorrow at 12 01 eastern. We shall see, david. All right, tom llamas with us again tonight. Thank you, tom. Theres still much more ahead on world news tonight this monday. The russian poison plot. And tonight, the major development. Also, the o. J. Interview that was never seen. Simpson saying that what hes about to describe in this interview is only hypothetical. Also tonight, the Nursing Student murdered. Tonight, police now identifying a person of interest and where they think he is. And new video coming in tonight. Tim mcgraw collapsing while performing onstage and what his wife, faith hill, then tells the crowd. Well be right back. The markets change. At t. Rowe price. Our disciplined approach remains. Global markets may be uncertain. But you can feel confident in our investment experience around the world. Call us or your advisor. T. Rowe price. Invest with confidence. Depend silhouette active fit briefs, feature a thin design for complete comfort. They say move it or lose it and at my age, im moving more than ever. Because getting older is inevitable. But feeling older . Thats something i control. Get a coupon at depend. Com but their nutritional needs remain instinctual. Thats why theres purina one true instinct. 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And today, Prime Minister theresa may told parliament the weapon was russian made. It is now clear that mr. Skripal and his daughter were poisoned with a militarygrade nerve agent of a type developed by russia. It is highly likely that russia was responsible. Reporter called a novichok agent, a next generation chemical weapon up to ten times deadlier than vx or sarin. It attacks the nervous system. Assuming it is russia, would it have to have been ordered from the top . Yes. Theres no way that somebody within the middle ranks could have got their hands on this. It would have had to have come from the very top. Reporter in russia, putin brushed off questions about the attack in britain. First, get to the bottom of it there, he said, then well discuss this. The British Government summoned the Russian Ambassador today and gave him 24 hours to explain how this advanced chemical weapon came to be used in an assassination attempt in england. David . Terry moran from london tonight. When we come back tonight, tim mcgraw collapsing. His wife, faith hill, then coming up on stage. And the Nursing Student murdered. Late today, police identifying a person of interest. Well be right back. Y, police identifying a person of interest. Well be right back. You dont like my lasagna . No, its good. Hmm. Oh. Huh. [ both laugh ] here, blow. Blow on it. You see it, right . Is there a draft in here . Im telling you, its so easy to get Home Insurance on progressive. Com. Progressive cant save you from becoming your parents. But we can save you money when you bundle home and auto. Progressiv