Paddock to carry out the mass shooting. In las vegas paddocks motive remains unclear, but were learning more about paddocks plan and what he did in the days leading up to the shooting. What we know is Stephen Paddock is a man who spent decades acquiring weapons and ammo and living a secret life, much of which will never be fully stood. You have to make the assumption he had to have some help at some point. New information on what paddocks girlfriend is saying to investigators. Her attorney reading her statement. I knew Stephen Paddock as a kind, caring, quiet man. Investigators are grateful for her cooperation, but they will have many more questions. Multiple senior Law Enforcement officials have told nbc he researched other locations in boston and chicago. Nbc news has new details on exactly what paddock researched in those other cities. Lets get right to our reporters for the latest on the investigation and what is happening on capitol hill. Nbc news justice correspondent Pete Williams is in our d. C. Bureau where he has been following this investigation from the very beginning. Pete, what can you tell us about the other cities that paddock was looking into . So first of all, how we know this is correct, what were told is that the authorities got on to this by looking through the Electronic Devices that they have found in his homes, in his car, in the hotel room, and looking at his communication history and his internet browsing and what they find is that he researched outdoor summer concerts, outdoor Music Festivals in chicago, at grant park, and in boston at fenway park, and in chicago he went so far as so actually reserve rooms during what is called the lollapalooza, the summer Music Festival in chicago while the festival was on. Although he reserved the rooms, he never actually showed up. And we have not gotten any indication that he actually reserved any rooms in boston. But what this says is that he was at least interested in outdoor Music Festivals for several months before the las vegas shooting. Does that mean he was planning to attack crowds before las vegas . Possibly investigators say. Its just part of what theyre learning as they starting to back and try to fill in a timeline here. Yeah. And its the closest thing weve come to anything indicating that he had considered Something Like this before las vegas. What about the other things that investigators are learning, specifically that he bought threequarters of his guns, 33 of his guns, in the last year alone . Yeah, 70 of them, actually. So he has bought guns since well, for 35 years, in all the various places he has lived, texas, california, nevada, crossed over the state line, mesquite is right up against the state line, went over into utah a couple of times and bought some guns, but the acceleration, its the pace of the gun buying in just the past year. So 33 of these weapons, mostly rifles, he bought in the last year. So the question is what happened in september or october of 2016 that caused this sudden shift . Was it that he had a lot more money sitting around the house and he wanted to protect it because he was winning a lot of money, millions of dollars in gambling . Or was there Something Else in his life that was a precipitating event . So far what Officials Say is they havent found anything. They have found some health issues, some Mental Health issues, but nothing serious or profound enough they believe that would cause someone to want to commit mass murder and think about it apparently for months at a time. What about an escape plan . I just dont know what that is. The officials ive talked to are familiar with what the sheriff said. There are apparently a lot of Little Things that indicate he was thinking about other things after the las vegas shooting, but i dont know of anyone who knows about an escape plan or that he had any real serious thoughts that he would survive this. Justice correspondent Pete Williams in our d. C. Bureau. Thank you very much. And nbcs Stephanie Gosk is in las vegas. Were getting a detailed timeline from authorities. Can you walk us through what we have . Reporter sure, katy. An hour and 15 minutes, thats what Authorities Say thats how long it took from the first shot fired by paddock to the moment at the busted in that door and actually found him shot in the head in that hotel room. Lets go through in a detailed way the bullet points of that timeline. So 10 05 on sunday night the first shots are fired by paddock. 10 12 the first officers arrive on the 31st floor of the mandalay bay. 10 15 the final shots are fired by paddock. Think about that for just a second. He was firing for ten minutes, that had to have seemed like an absolute eternitiy for those terrified people on the ground. Moving on, 10 17, the first officers arrive on the 32nd floor and then this, at 1018 tank hay juijesus compost goes door, miraculously only shot once in the leg. He is able to go to the authorities, tell them where paddock is. 11 20 the officers breach that door and thats where they find him shot in the head. Amazing it took so much time between the officer getting there and them getting into that room firing more than 200 shots at that door. Are we getting any more information from officers on what it was like as they tried to breach that room . Reporter well, you can only imagine from that point on when they were sure they had the room, and obviously the firing had stopped out into the crowd, but there was still activity, they didnt know whether he had explosives, there were concerns for their own safety. Coming up with a plan, they didnt know whether he was alive or not inside, you can imagine it was very difficult and extraordinarily dangerous, but ultimately they were able to breach that door and go inside. Also we found out some details not just about the guns that they found in that room, but also what was found in his vehicle outside. In the trunk of his vehicle they found 1600 rounds and ammonium nitrate, thats fertilizer but its also used in explosives, authorities pointing out that at both of his properties he didnt have any grass, clearly they were concerned that he was going to make some kind of explosive device with that stuff. Katy. Nbcs stephanie fwosgosk in vegas. After every mass shooting this time it may be different, at least partially. Yesterday senator Dianne Feinstein introduced a bill that would ban the creation, sale and possession of bump fire stocks. A few republicans indicated they are open to the idea but how far will the bill actually get . This Morning HouseSpeaker Paul Ryan said this, in an interview with msnbcs hugh hewitt. John cornyn has said he wants to have a hearing on bump stocks. Are you open to a vote on bump stocks. I didnt even know what they were until this week and im an avid sportsman, i think were quickly coming up to speed with what this is. Fully automatic weapons have been banned for a long time, apparently this allows you to take a semiautomatic turn it into a fulliment a tick. This is something we need to look into. Kasie hunt is on capitol hill. What is the likelihood that a hunt like this actually becomes law . Reporter hi, katy. Theres still a lot of twists and turns ahead of this. Youre right that the tone and tenor of the debate around bump stocks specifically has been different than what weve seen in the past. You have some republicans coming out and saying, hey, i had no idea what this was, as paul ryan said, he is not the only one, and expressing some willingness to potentially make a change, but i will say the legislative process around this still potentially problematic. I want to show you a little bit of what weve heard from senators over the course of the last day or so and then we will talk about it. This strikes me as something worth considering and particularly when you look at the video of this individual, spraying gunfire at a high rate on these 22,000 people from this 32nd floor hotel room, i think its worth our serious consideration. Do you support a ban on bump stocks . There has been talk about whether or not to ban them that were used in the shooting in las vegas. We will look at it, i think its premature to make any decision. I think we are all learning more about bump stocks. I dont think that the 80 or 90 million americans who exercise their Second Amendment rights to own a gun should be punished for the act of one evil person. Reporter and one additional note, katy, certainly shelly mark capita just walked by this location. Our producer talked to her and she said she might be open to Something Like this, thats remarkable from somebody from west virginia, a very trump heavy voting state. Here is my one caveat on this, and its a major one, any legislation related to guns, legislation takes a long time, period, and the longer Something Like this takes the more likely it is that it gets chewed apart and potentially changed. There is an effort on the house side to get the atf to look at this and to declare that these bump stocks are illegal, they think that will be a faster way, i think that is a politically more tenable way than to wind this through congress. Kasie hunt on capitol hill, thank you very much. And senator chris murphy a democrat from connecticut joins us now, his district includes new town where 20 children and six adults were killed in the sandy hook shooting in 2012, he is also a cosponsor of senator feinsteins bill. I know bump stocks are a part of the issue but they are not the whole issue. I want to talk about the polling that we have in this country on guns and just how many people have guns. There are according to polls are or stats 265 million guns in the u. S. , 30 of the population owns them, 3 of the population has more than half of americas guns. Not only that, a quinnipiac poll taken in june 2017 shows that 94 support background checks, 93 of republicans support background checks. 57 of people say that guns are too easy to buy. Only 35 agree with the nras argument that more guns will make america safer. The bump stocks is only part of it, its clear that americans support some form of tighter gun laws. Why dont we have them . Theres really no other issue like this and you laid out the case pretty well. Youve got 90 of the American Public that supports, you know, probably the most important intervention which is universal background checks, we know it works in states that have universal background checks the rate of gun crime and gun homicide is much lower and yet congress cant move. The answer is pretty simple, the gun lobby which lobbies ard against universal background checks is much stronger right now than the antigun violent lobby. They have had 30 years to build up political power thats especially potent in republican districts and we are playing catch up. I view this as a longterm social change movement not unlike some of the other big ones that have played out over history. We will win but we have to get as strong as they are, we have to defeat members of congress that are voting against 90 of their constituents. We wont inn with this inside washington, we will win this outside of. Senator, the Washington Post has been tracking how much the nra donates to all members of congress, they have a full list of what money has gone to whom. Paul ryan has received almost 40,000, Mitch Mcconnell 26,000, kasie hunt was just on with us a moment ago saying the longer any of this legislation takes even on bump stocks which seems to be supported by a lot of folks in congress right now, republicans alike, the longer it takes the harder it is to get things done. How do you intend to keep the pressure on . And i ask this because youve been talking about this now for years after new town, you bring it up a lot, and it only gets spoken about when there are these mass shootings. How do you keep it as part of the conversation a week from now . A month from now . A year from now . The number that you used for the donations that go to those numbers they are actually pretty small in the scope of how much money people like paul ryan raise, the problem is the nra has managed to make their stamp of approval a proxy for a broader set of conservative credentials. So if republicans want to show how conservative they are in their district they want that nra stamp of approval. We have to help republicans show that they are conservative if thats what they need to get elected without having to be 100 in compliance with the nras agenda. How we keep it in front of the public, we go around washington. In 2016 we had four referendums on the ballot to tighten gun laws, one of them in nevada and three of those referendums won. So we are going to do that again in 2018 and 2020, keep these ballot measures moving so that we ultimately might be able to go around the stagnation and the nra power here in washington. Senator, the nra has just released a statement unfortunately the First Responders the First Response from some politicians has been a call for more gun control, banning guns from law abiding americans based on the criminal act of a madman will do nothing to prevent future attacks, this is a fact that has been proven time and again in countries across the world. They then go on to say that in order to keep americans safe and on behalf of our 5 million members across the country we urge congress to Pass National right to carry reciprocity which will allow law abiding americans to defend themselves and their families from acts of violence. It sounds like what theyre doing is going back to the argument that they made after new town which was more folks with guns will protect crazy people that have guns. Right. Protect you from crazy people that have guns. Yeah, so that statement is a complete fabrication from beginning to end. We have reams of research on what laws work and what laws dont and what we know is that states that have stricter guns laws making sure that dangerous people dont get weapons and people dont get dangerous weapons have lower rates of crime. What we know is if you have a go u. N. In your home this is more likely to be used to dill you than kill an intruder. There are people who had firearms at places like las vegas and dallas and they were helpless because they had shooters with semiautomatic and now we know automatic weapons up above them firing down. Its all mythology from beginning to end, its about a political agenda that the nra advances in order to help the gun industry, their patrons, and we have to do a better job of explaining that to people. Remember, 3 of the population has more than half of americas guns. 3 of the population. Senator chris murphy of connecticut. Senator, thank you very much for joining us. Thanks. And you know those rumors youve been hearing about democrats worried about their leadership being ineffective, potentially toxic in the house . Well, those rumors are true, there is some concern at least among some in the caucus. Today there is a renewed call for democratic leader in the house nancy pelosi to step aside. So the next generation of democrats can step up. The Washington Post is reporting congresswoman Linda Sanchez of california the fifth highest ranking democrat in the house thinks its time for a change and not just with pelosi. She wants House Minority whip steny hoyer and James Clyburn to step down, too. Congressman joe crowley is a democrat from new york and as chairman of the Democratic Caucus he is the fourth highest person in the democratic leadership. Congressman, thank you very much for joining us. Thanks, katy. What is your reaction to congresswoman sanchez . Well, first of all, i think nancy pelosi, steny hoyer and jim clyburn are some of the hardest and smartest working members of our democratic leadership and our caucus. What im focused on right now, katy, is the fact that were dealing with a crisis in puerto rico and the virgin islands, we have had a massacre of incredible scale in las vegas and today we had a budget pass that i dont believe is refle reflective of the values of the Democratic Party nor the American People. Those are things that need to be folks used on right now. Sanchez is your deputy chair, have you spoken to her about these comments . I think what we ought to be focused on are the issues that i spoke about just now. I think that Linda Sanchez is a valued member of our democratic leadership and caucus but i do believe right now is not the time to have this discussion. Sanchez came out and made this discussion part of made this part of the discussion. She brought it up today. So why would somebody in the democratic leadership make these comments calling nancy pelosi and the leaders after pelosi was able to at the very least cut a deal with President Trump on funding when it came to the hurricane disaster . Right. Well, what i would say, katy, is our caucus made its decision last november when we held a raucous caucus and debated these issues and we were elected to the house leadership. I dont believe that right now is the time to be having this discussion. We need to stay focused on the issues at hand and i went through the litany just a few we are not focusing on economics and job growth in this country under this republican controlled congress. 250 plus days of do nothing, do absolutely nothing when people are dying in this country either through natural disasters or man made disasters like we saw happen in vaccinatiegas this we the democrats want to retake the house and senate in 2018. Nancy pelosi is a lightning rod, the republicans use her pretty effectively to rally support among their voters to get them to vote for republican lawmakers. Are you concerned that she will be a liability for 2018 when democrats could have a real opening to retake both houses of congress . At least one of them. You know, katy, i have heard