This weekend, he wont be there. Who is there and who is currently speaking, you just saw a hot second ago, the governor of ohio, john kasich, who would like to beat mr. Trump in winning the partys nomination for president. By the way, we will be speaking to this hour live. Do not miss that. Lots of politics to dive into. But first, lets get to this. This could be hollywoods greatest crime story, the grisly murders of o. J. Simpsons wife Nicole Brown Simpson and her friend ronald goldman. O. J. Simpson was tried and acquitted for this infamously gruesome acts. The murder weapon, a knife, was never found. Fast forward to just a couple hours ago. The Los Angeles Police department revealing new information that could perhaps alter the course of this cold case. A knife has allegedly been found around the perimeter of o. J. Simpsons former home, his Rockingham Estate. The story told to us by the person we received it from and the person we received this knife from is a retired lapd officer who retired back in the late 90s. He was a motor officer. At the time, according to him, he was working an off duty, which is he was working a movie job, which a lot of our officers do on an off duty basis, as well as our retired officers. So i do not know whether he was retired at the time that he allegedly received this item from the person who claimed they found it on the property, or whether he was still, in fact an lapd officer and retired some time after that so were looking into that. The bottom line is that with all callses that remain open such as the o. J. Simpson and other murder cases and robbery cases, unless theres an actually arrest or conviction to prove that we have actually closed the case, the cases remain open. This of course is all playing out as the fx tv series about the Simpson TrialAmerican Time story, the people versus o. J. Simpson, is halfway through its tenpart run. Lets kick off our coverage. More on the developments from los angeles. Paul vercammen, please tell me what you know. Well, brooke, right now, this knife is in the polices Scientific Investigative Division or sid and what theyll do is see if they can find any traces of dna. Perhaps if theyre super fortunate, fingerprints. Theyll also look for blood. We pressed the captain on the size of this knife, is it consistent with the knife that would have been involved in the stabbings, in this murder. And he would not be specific. So we tried to get him to rule things out, machete, kitchen knife, a pen knife. He said it certainly was not a machete and indicated they dont want to reveal too much because, as you pointed out, brooke, this is an ongoing cold case. So still a lot of mystery hanging in the air. It seems that this is either the most significant evidentiary development in this case in 20 years or it could be, as can be the case with all things o. J. Simpson, just another red herring and wild rumor, brooke. Do we know, quickly, paul, why that person didnt come forward many moons ago and say, hey, i have this knife . We do not. Of course, as the story is going right now, its the officer who said retired officer, that someone else gave him the knife. So youre attributing it to other people. That was a question also we pressed on. Imagine being the Public Information officer in this scenario and you, too, are wondering why in the world, whether retired or not, an lapd employee would hang on to this knife. Paul vercammen, lots of questions, thank you, sir, in los angeles. The Nicole Brown Simpson case, by the way, its still open. And lapd investigators are looking into any possible criminal violations by the retired officer who says he was given this knife some years ago. Lets discuss. I have cnn senior legal analyst jeffrey toobin, author of the book the run of his life, the people versus o. J. Simpson. Also with me here in new york, legal analyst and criminal defense attorney mark geragos and i have tom lane with me on the phone, former lapd lead detective who was assigned to the o. J. Simpson case. Detective lane was the man who was actually on the phone with o. J. Simpson during that infamous white bronco chase. So welcome to all of you. And, detective lane, let me just kick it off with you. I want a reality check from you. How many knives have been found in the years since this story first broke . Initially, brooke, there were several fives found around the property. We did a canvass of not only the property but the streets all the way from rockingham to bundy with an academy class. There were dozens and dozens of hours spent with over 100 officers searching property yars, areas, sewers, streets, no stone unturned kind of a situation. As to knives, there were several knives turned in by various people. We even had people admitting to the crime. And you have to look at all of these things. We also had, dont forget, a witness at l. A. X. Who observed simpson push things into a trash container at American Airlines before he got on the flight. And that it was never reported to us until months after these items were taken out of a small utility bag, put in the container, and then he zipped the bag shut and walked into the terminal and that was that. So weve had this type of a thing happen before. This particular incident, we dont know anything about the circumstances of the recovery. Its very unclear, so were going to have to wait and see. As far as the knife itself goes, theres a lot of testing, dna, possibly prints, but more importantly, probably, if nothing else is there it were going to look to see if this weapon is dimensionally consistent with the wounds on the victims. As Paul Vercammen was reporting, its in the hands of the sid in l. A. The wounds consistent, forensics, keep in mind, its been in soil for years and years and years. Jeff toobin, you wrote the book on this. Lets play the what the if game. If this is it, if this is the murder weapon, what happens to o. J. Simpson . Nothing. He has been tried and acquitted. And under the double jeopardy clause of the constitution, he cant be tried again. So this socalled discovery, if it is, does, in fact, have anything to do with the murders, is of great historical interest, but legally, since he has been tried and acquitted and since there has been a civil judgment against him, in the subsequent case by the goldman family, it just has no legal significance at all. Mark geragos, you say you have a theory, sir, spill it. One of my theories is that toobin arranged for this because it comes halfway through his tv series. What do you think about this, toobin . Dont answer, i dont want you to incriminate yourself. The only legal jeopardy i can think of, i havent researched it today, to take a look at, is, you know, you can be acquitted in a state court and you can still be prosecuted federally like rodney king. I havent looked at the statute of limitations but youre talking 20 years for a violation of somebodys constitutional or civil rights. So if there were to lead to something, would the feds jump in here, would they say that there was a prosecution in the offing . My guess is probably barred by the statute of limitations, but you can do that. You can be acquitted its this weird kind of exit or pathway in the double jeopardy clause. You can actually be acquitted in a state court, yet then subsequently prosecuted in a federal court. So thats one potential exit route there with regard to the law, but im still back on this knife and detective lane, help me out, just as far as forensics goes, again, if this knife, you know, dates back, what was it 95 . 20 years. 20 years, 20 years ago, what kind of forensics could you really find on this . Well, its questionable. Of course, dna can be around for a long time. By the way, im also glad to see mark hasnt lost his sense of humor. He sure hasnt, has he . Going to check for the dna again, which is possibly there. Prints are questionable. But of some consequence is going to be whether or not this weapon is dimensionally consistent. I mean, could this have possibly have been used . And, again, weve had several people come forward with knives over the years. This is nothing new. I question how this whole thing began. We got people saying one thing and going back 18 years and a gave it to b who maybe put it and gave it to c. We just dont know at this point. I think toms absolutely right. Whether theres dna on there, there can be. Ive had cases out of this special s. I. D. Unit where their had units that was 20 years old. 20 years later, they get a hit and theyre able to then link it up to whatever evidence this is maybe a knife deep down in some soil and what toms alluding to though, the bigger problem, is kind of a chain of custody problem. First youve got an offduty lapd officer. Boy is the guy correct that a lot of them are doing movies in l. A. Its a great source of overtime. But he gets it from somebody else. Now, theres all kinds of legal problems with the person, whoever had it, when did they come into it, what couldnt that person if youre potentially withholding evidence. Evidence arguably, how did he find it, whats the providence of it, so all those things become real questions theyre going to have to ask. If i can just add, i mean, mark is exactly right, the chain of custody for 20 years is an enormous problem, but if there is dna on the knife, which ties to either the victims or even to simpson himself, that might trump the chain of custody problem. I mean, if the blood is actually that of one of the two victims. You know, that would make it relevant evidence, that then you would work on the chain of custody. The first thing you have to do is determine if there is any dna connection. Because if theres none, then this is just irrelevant and nothing. Its a ratings booster, but jeff is right, if there is any kind of dna, anything whatsoever that they can even if its just a small piece, that is going to trump in most judges minds whether or not its admissible. Mark geragos, jeff toobin, detective tom lane, thank you all so much. I appreciate that. Coming up, back to politics. Breaking news here in the race for president. Donald trump, speaking right now, cadillac, michigan. The news is this, he has Just Announced he will not attend c pac, a major conservative conference, this weekend. If hes a no show there what will he be doing this weekend . We have that for you. Also ahead, will the republican race come down to two key battleground states being florida and ohio . We will talk to one of the contenders for president. Ohio Governor John Kasich who has been told the only adult in the room. And after 11 debates, many believe his message is now breaking through. Stay with me. Bleeding gums . You may think its a result of brushing too hard. Its not. Its a sign of early gum disease. Listerine r can help reverse. Early gum disease in just two weeks. Listerine r . Power to your mouth™ every Auto Insurance policy has a number. But not every Insurance Company understands the life behind it. Those who have served our nation have earned the very best service in return. Usaa. We know what it means to serve. 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Absolutely ageless® night cream aveeno® with active naturals® blackberry complex. A whole new way to keep skin looking younger longer. Starting tonight. Part of the new absolutely ageless collection from aveeno® and were back. Youre watching cnn. Im brooke baldwin. Turning now to the republican race for the white house. The stakes could not be higher it the discourse is now hitting an alltime low, yes, folks, donald trump and some of the others, theyve gone there. For one, trump defended the size of his on the president ial debate stage, a counterpunch, he says, to correct the record that he does not have small hands, a punch from marco rubio. Will his below the belt bravado make any difference to voters heading to the polls tomorrow . 155 crucial delegates are up for grabs saturday. If not that, what is about this story that is first on cnn . Donald trump announcing he will be skipping the influential cpac event that end stas for the conservative Political Action conference. The billionaire stands above the pack, despite the fact that he is taking it from all sides. The gop calculating how to keep him the nomination from him. And then on the debate stage last night, donald trump took it from, you know, all sides here from especially marco rubio and ted cruz. We are not going to turn over the conservative movement or the party of lincoln or reagan for example to someone whose positions are not conservative. Someone who thinks the Nuclear Triad is a rock band front the 1980s. This little guy has lied so much about my record. The real con artist is senator marco rubio. The people of florida cant stand him. He couldnt get elected dog catcher. You know, donald has a tenuous relationship with the truth. Youre the lying guy up here. Youre the liar. Youre the one. Now let me just tell you are you hiding excuse me, ive given my answer, lying ted, ive given my answer. In cadillac michigan, where trump is holding that rally. Well get into what trump said to the rally there, but first, why not attend cpac, whats the story there . Donald trump is skipping cpac this weekend and is going to kansas instead. Of course, kansas is voting tomorrow. This is going to be the first trip for donald trump to that state. Then he goes to orlando for a big rally there. Of course, florida, a huge state. A winner take all state in the florida primary. On march 15th. So that will be a big rally for him. The american conservative union, the guys organizing cpac, say theyre very disappointed donald trump wont show up and they say that sends a clear message to the conservative grassroots. It comes at a time when marco rubio and cruz are hitting trump for not being conservative enough. Whether its his record on abortion or the record on giving to Hillary Clintons campaigns. Both cruz and rubio are beating him u. N. Of course we have the small hands debate which continues to rage with donald trump defending his man hood on the debate stage last night. In fact, he went after marco rubio again this morning, lets take a listen. So when little marco spews his crap about the size of my hands which are big, the size of my hands . I looked at him. I said, marco now, i just wanted to set look at that. Those hands can hit a golf ball 285 yards. So there you have it, the hands scandal continues on the campaign trail. Donald trump starting to pivot to the general election, saying hes the guy who can take on Hillary Clinton, and that you need some flexibility when negotiating. When you look at the polls, theres no question why, here in michigan, brooke, he is leading, 29 support, both cruz and rubio jockeying for that second place position, to be the trump alternative. Here in cadillac, michigan, you can hear donald trump behind me speaking. They lined up and folks could not get in, they are at capacity, with over 3,000 people here. Theyre very excited to hear donald trump. Well hear what else he has to say about rubio and ted cruz, brooke. Chris frates, thank you, sir, in michigan. Gives his rivals even more reason to criticism him. Whoever the ultimate nominee is for the republican party, they will all back that one individual. Ill support the republican nominee. Mr. Trump, yes or not. Ill support the republican nominee. Yes, because i gave my word that i would. What i have endeavored to do every day in the senate is do what i said i will do. Sometimes he makes it a little bit hard but, you know, i will support whoever is the republican nominee for president. Can you definitively say tonight that you will definitely support the republican nominee for president , even if its not you . The sans yes, i will. Joining me now, chris kovac, the kansas secretary of state who recently endorsed trump. Republican pollster kelly ann conway. And jamie weinstein, Senior Editor for the daily caller. Secretary, let me just begin with you, because you must be thrilled that trump is heading to your state tomorrow, prioritizing kansas, and im just wondering, did you have any conversation with him before his camp announced he wouldnt attend cpac this weekend . I did have some conversation with his campaign, not with mr. Trump directly. I understand how important that conference is. So mr. Trumps coming to wichita to speak an hour before the caucus begins. One of the interesting things about kansas, many people may not know, is in the past two election cycles, caucusgoers have voted against the frontrunner when the frontrunner has been an establishment candidate. So they went for santorum over romney last time and in 08 huckabee over mccain. Even though i