Building to stop the gunman. This comes after the stunning admission last night that it failed to investigate a very specific threat about the killer. Were also learning police had repeated warnings about this gunman for years. His family, his guardians, counselor, even strangers who saw his posts online tried to alert authorities that he was violent and he was a threat, and that he was a potential School Shooter. Is failure after failure after failure. Nearly every step of the way. Will the president address this at a conservative conference hours from now. President trump has proposed giving bonuses to teachers who carry guns. The nra likes that but doesnt like the president s plan to raise the age level to buy a gun. Does the president have the courage to fight them . Its interesting. We heard from matt schlapp. He doesnt know what the president intends to do here or where he stands. Political ire on the fbi and, yes, the media. Lets begin our coverage with rosa flores live in parkland, florida with these new developments, these infuriating revelations about just how much was known and how much was not done right up until the very end. Reporter you know, which probably leaves parents thinking what if . Because the trail of evidence, john, is clear. The warning signs that this killer had violent tendencies were there, and they were there for years. And then of course we learned a week ago that a tip to the fbi was not investigated. And now this morning weve learned from the sheriff that he is sick to his stomach because the one resource officer that was there at the school when the shots rang out, who had a weapon, stayed outside and didnt go inside that building. What i saw was a deputy arrive, and he never went in. The only armed Police Officer stationed in Marjory StonemanDouglas High School resigned amid revelations that he waited outside as the massacre unfolded. What should he have done . Went in. Addressed the killer. Killed the killer. Reporter he is telling reporters that surveillance shows the deputy, scot peterson, taking a position outside the building for four minutes as gunshots rang out but failed to stop the attacker. Devastated. Sick to my stomach. There are no words. These families lost their children. Reporter peterson retiring thursday after being suspended without pay. Ive been a Police Officer for 30 years. Reporter seen here speaking at a School Board Meeting in Broward County in 2015. He was recently nominated twice for deputy of the year. Two other deputies now on restricted duty. They are being investigated for how they handled tips warning about the killer. Authorities announcing that they have received 23 calls involving the killer and his family starting in 2008 when the killer was just nine years old. The most serious warnings began two years ago when an anonymous caller alerted police that the killer threatened to shoot up the school on instagram and posted pictures of himself with the gun. The miami herald said seven months later, a peer counselor reported that the killer possibly ingested gasoline, wanted to buy a gun, and wanted to commit suicide by cutting himself. Days later, an investigator for Florida Department of children and families determined that he was low risk. Later that month, the family that initially took the killer in after his mothers death called police to report a fight. 911 emergency. How can i help you . Yeah. There was a fight in my house with a kid and my son. Okay. Punching him and thats when he left the house, but i need somebody here because im afraid he comes back and he has a lot of weapons. What kind of weapons, maam . Let me ask my son. What kind of weapon did he get . That hes going to get . A remington. A remington. The family also revealing this disturbing detail. He also dug in the backyard because he knew he was not allowed to bring it here and we found that he did inaudible he was going to bury the gun there. The next day, a tipster from massachusetts called the Sheriffs Office to report that the killer was collecting guns and knives. Telling them he will kill himself one day and believes he could be a School Shooter in the making. If you look behind me, you see there is a growing memorial, but were not at the school. Thats because staff and teachers will be returning to school today. Orientation is scheduled for sunday. And students are expected to return on wednesday. John . Yeah. Rosa flores in parkland. I have spoken to so many students and teachers who say theyre not ready, theyre just not ready to go back just yet. A president to make clear where he stands on this issue. He holds a press Conference Today with the australian Prime Minister at the cpac conference. Abby phillip live at the white house with what we can expect. Abby . Reporter well, good morning, john. President trump appears to be determined to answering this question of what to do about these School Shootings his own way. He is calling it an offensive posture versus a defensive posture. And the centerpiece of his proposal appears to be a controversial one, Arming Teachers inside of their schools. After an Early Morning tweet storm yesterday, he expounded on it in a meeting. Take a listen at what he had to say. I think a concealed permit for having teachers and letting people know there are people in the building with a gun, in my opinion you wont have these shooting. These people are cowards. Theyre not going to walk into a school if 20 of the teachers have guns. The people that do carry, we give them a bonus. We give them a little bit of a bonus. Reporter there are a lot of people on both sides of the aisle who say that is not just a good idea. The white house has not detailed anything about how it would be paid for or how all of this would work. On the other hand, the president has been talking about another issue on his mind, these active shooter drills, something that students and teachers about what to do if there is a shooter in their school. He says it can be scary to young children. Hes not exactly sure that they are a good idea. The white house later had to walk that back. A Deputy Press Secretary raj shah from the podium yesterday said the president was talking about the branding of the drills not exactly about the idea. As he goes over to maryland later today to talk to the conservative Political Action conference, it will be a big question about how far is he willing to go on the issues before that audience. They got so much red meat from wayne la pierre. It will be interesting to see whether the president goes that far when he is in front of the group today, john and alisyn. Yes, it will abby. Thank you for previewing that. We have David Gregory and james gagliano. James, lets start with all the developments. The relentless red flags about this gunman that were missed. I think it just bears us repeating, putting it up on the screen again. There are dates where there could have been some intervention. There were anonymous calls that this kid was going to shoot up the school. A peer counselor reported this kid was suicidal. His mother said he wrote a racial slur on his bookbag. There were youtube comments that he posted that he wanted to be a professional School Shooter. His cousin asked police to take his weapons after his mother died. There were threats that he was going to go get his gun and show back up during a fight and shoot somebody. There was a caller to the call center that he could be a School Shooter in the making. But listen, james, where could he have beenk through all of these, and we Say Something has to change, if your mother says you write a racial slur on your bookbag, youre not getting locked up. If you say im come canning back with my gun, youre not getting locked up. Would in this litany, this laundry list could something have happened to incarcerate him. You never come to me to sugar coat things and im not going to do it here. It is fallible human beings and systems that were supposed to be interconnected and they werent. We need to go to the root of this, which is the national in standpoint criminal background check system. Many states still to this point do not report all of these Mental Health issues or conditions for these folks who never should get their hand on a gun. Its crazy. Aoeupb insane. We are not looking at this in a vacuum. I get a sense of revulsion every time i hear this. I know the sheriff in Broward County is doing a deep dive of what happened. But that was another colossal collapse in the system. You know the line from the godfather, this is the business that we have chosen. Those of us in this profession, we dont view this as a job. We accept additional risks when we put that uniform on, pin the badge on, and strap on the sidearm. To know that there was somebody mere feet or yards away from the slaughter of children, i can tell you i have not recovered from that news yesterday, and i dont know when i will. Again, it bears repeating. We dont know what would have happened, had he tried. The protocol is the best thinking on this. We have had too many instances to study. Is that confronting the killer is the best way. Right. To stop them in process right now. David gregory, if you look at that, that was the end. That was the last chance to keep this from happening. Why have an officer there if you are not going to confront a shooter. Thats the whole point. Whats disturbing about the president frankly popping off with his psychological read on what the sociopaths are going to do when they come into a school is not helpful to have the president of the United States saying these are cowards. There was an officer there who failed to confront the shooter. Again, you dont know what motivates. But in so many is cases these sociopaths, may be ill, they will see a sheriffs deputy or armed teachers that will dissuade them. Come on. Lets attack this a little more rigoro rigorously. The question from alisyn was the right one. It is very easy to put up a list of all of these missed signs. But if youre the parent of this child and youre going through all of these difficulties, hes not going to be incarcerated because of some of these tips or because of wraoug a slur on a ba writing a slur on a backpack. Does that have been to the standard . Heres my point. No, im not is saying that has to be the standard. But i think we have to realize from a Law Enforcement perspective, you can act on it. The question, john, i think youre right, the question is how do we get to a place where there are enough flags for a person that is not a criminal record but that theres enough flags because theres enough professionals who have been able to speak to each other that the point at which someone goes in and wants to buy a firearm, there is some way to flag this individual. And i dont think its look, its a legal gun purchase that he made. The gun seller can be in the business of putting all of these pieces together. Other people have to do that. Thats the challenge here. James, i want to talk about Arming Teachers. I want to do it as dispassionately way as possible. Obviously the gun conversation raises passions pretty quickly. But for the teachers who want this, okay, so we have heard from the teachers, some teachers at parkland, some at newtown who say i could never do this. I just want to educate kids. But for the teachers who want this, and there are already schools in texas where staffers are armed, unfortunately we dont have a lot of data about whether this actually works. Lets just talk about whats effective. Do you think this would be an effective way to cut down on School Shootings . Im going to show you the complete opposite ends of the spectrum here. We will let the viewers choose. On one hand is this, trained Law Enforcement professionals khewh i was on 25 years, on a clear day, shooting at paper on a range generally hit their targets between 80 , 85 of the time. Thats under perfect conditions with no rounds incoming. Now, when you add stress to this mix, and there have been studies shown, Law Enforcement officers, generally hit their target 18 of time when theyre in an adversarial confrontation with a bad guy. That is one out of five discharged. If we think Arming Teachers, having them go through safety course and giving them time on the on range is going to change that, its not. Now, the opposite end of the continuum is this. Im adjunct professor at st. Johns university, retired Law Enforcement, former s. W. A. T. Team leader. When i go to st. Johns, its a gunfree campus. Im not allowed to carry a weapon to have the privilege of the concealed carry that i have as a retirement Law Enforcement officer. If i had been in parkland that day i would have been unarmed as any of the students there. We need to look at this, the insanity of Arming Teachers. If you had teachers that were prior Law Enforcement or prior military, would it not be a bad deterrent to say in certain cases we will make an exception. Number one, david, would teachers ever want to do this. Number two, will it work . And number three is, is the discussion now going to shift exclusively to Arming Teachers instead of them focusing on the other things which might also help at least a little. It would be a mistake if it just goes to that. I talk to my 15yearold son. I think that would be unsettleing to students to know a teacher is armed. It parent part said if my kid was at parkland, would i want a teacher to be armed and take our chances . I might want to consider that. But i think the other thing to add to this, and i wonder what jamess take is. Just like if were evaluating terror threats, if you have a threat matrix for a school and you have an individual who actually has a tie to the school, who was expelled to the school and you have information as Law Enforcement to say, well, theres been a specific threat against the school, can you on a casebycase basis harden that target and say, look, we have a guy out here we are worried about. There may be a legitimate threat against the school. Were going to surveil, harden this particular school. Does it make sense to think about it that way and could parkland have is thought about it that way working closely with the Sheriffs Office . Thats a good question, david. It goes, again, to resources. Were talking funding and mechanism resources. We have 335 Million People in this country. And i think theres 1. 2 million sworn Law Enforcement officers. So when you look at it like this, the amount of threats that get called into the fbi and the amount of threats that get called to the local police departments, it is mind numbing. Now, again, this is one in hindsight we look at and think how could the red flags have been missed. Again, it speaks to resources. Are we going to commit ourselves to making sure schools are safe is. Once we harden every school in the United States, the bad guys will find another soft target where people are gathered, where more than one or two people are gathered to focus their ire on and focus their attack. Maybe we could slow it down, james. Whats wrong with making it harder to walk into is a school . James, david, thank you both very much. Ahead on new day, we will be speaking with the nra spokeswoman dana loesch about all of this, about gun violence, what their suggestions are. Thats coming up in the next hour. All right. Up next, taking action. States coming together to fight gun violence. Theyre not waiting for the federal government. These states taking matters into their own hands. Three governors join us next. And 26 essential vitamins and minerals, including calcium and vitamin d. Boost high protein be up for it dial your bingewatching up to eleven. For a limited time, get four unlimited lines for thirtyfive bucks each. Woah. 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