Tonight investigators say the 298 people on Malaysia Flight 17 never knew what hit them. The official investigation says the boeing 777 was ripped apart by a russianmade missile fired in the civil war in ukraine. And 15 months after this tragedy theyre still fight over who pulled the trigger. Heres elizabeth palmer. Reporter the charred wreckage of mh17 scattered across 20 square miles of Eastern Ukraine turned the whole area into a vast crime scene. Today the chairman of Dutch Safety Board which headed the main investigation was categorical. Flight mh 70 crashed as a result of the detonation, on the lefthand side of the cockpit. Reporter the russian made buk missile was fired from the ground said the board. A simulation showed the blast a yard away from the plane pierced it with chunks of shrapnel and tore the cockpit clear all. The pilots died instantly. Though some passengers may have a half. Mh 17 crashed on ukrainian territory controlled by russian backed separatist militias. Dutch investigators recovered as many pieces as they could and transported them to a hangar in the netherlands where like a grim jigsaw puzzle they were reassembled. That revealed what caused the crash but not who. A separate criminal inquiry will decide that. Defense analyst Elliott Higgins who provided social media evidence to the dutch investigators says that photos and satellite data show that a buk Missile Launcher was driven into rebel territory from russia and fired just before the crash. Based on our research it look like that Missile Launch came from russia and a missile crew. A huge problem for russia. Reporter russia always it maintains it was probably the Ukrainian Army that fired the missile. Today a Foreign Ministry spokesman said he had serious doubts about the dutch conclusions. Elizabeth palmer, reporting for us in our london newsroom tonight. Liz, thank you. Tonight we learned deaths linked to ice cream tainted with bacteria were part of an going on for years. In april, Blue Bell Creameries recalled product from 23 states because of listeria which can be fatal to those with weak immune systems. In part 2 of our investigation, jim axelrod shows us how the case of the mystery deaths was solved. Reporter when megan davis and team from the South Carolina department of health randomly sampled ten products from a local Blue Bell Distribution Center in january, the last thing they expected to find was listeria. We never in a million years thought we would find a positive sample. Reporter two of the ten samples tested positive. But just to be sure, they went back and collected 30 more. All 30 of the samples that we tested, tested positive for listeria. Reporter stunning. Yeah, stunning. A little scary that those products were going to consumers. Davis uploaded their findings into pulsenet, a database of dna fingerprints the center for Disease Control monitors to identify outbreaks nationwide. A group that matched. Reporter dr. Robert touks is Deputy Director of the food Borne Disease division. The listeria germs found in South Carolina in the ice cream matched illnesses in a hospital in kansas. Reporter that hospital was via saint Christie Francis in wichita. Listeria sickened five patients over the past year. But the hospital couldnt figure out where it was coming from. The listeria patterns found in South Carolina solved the mystery in kansas. It turns out all five of the patients had been served milk shakes made with Blue Bell Ice Cream. In mid february, blue bell quietly pulled all of the i cream made on the machine that produced the ice cream testing positive in South Carolina citing a quality issue. Via christie had blue bell product in its freezers. The Kansas Department of health tested 45 them and found another hit. When that was loaded up into the pulsenet database, it matched five other patients. But these werent recent. Reporter these five cases came from three different states. Going back to 2010. Any one a lowlevel outbreak was going on for, four or five years. Reporter an outbreak no one was looking for that very nearly went undetected. Our inspector could have picked two different ice cream products to test. What if he hadnt picked the two samples. It may have had a different outcome. Pulsenet enabled the cdc to trace tainted ice cream not just to blue bells main plant in texas but to a blue bell factory in broken arrow, oklahoma as well. Blue bell said it is increasing focus on sanitation and cleaning and is being evaluated by independent microbiologists. In a statement to cbs news, blue bell said our top priority and commitment is to pre deuce high quality, safety, Delicious Ice Cream for our customers. Fascinating detective story. Part three tomorrow. Jim, thank you. L. A. Police on the hunt for drones flying where they shouldnt be. She is not the runaway bride, but she was rushing for a good reason. Right back. 130 yards now. Bills got a very tough lie here. Looks like we have some sort of sea monster in the water hazard here. I believe thats a kraken, bruce. It looks like hes going to go with a nine iron. That may not be enough club. Well hes definitely going to lose a stroke on this hole. If youre a golf commentator, you whisper. Its what you do. Fifteen percent or more on car insurance, you switch to geico. Its what you do. This golf course is electric. Happy anniversary dinner, darlin im messing up every dish, pot, and plate. To show my love. Tada all this devotion only calls for a little bit of dawn ultra. Now even more concentrated. Just one bottle has the grease cleaning power of two bottles of this other liquid. You still got it, romeo. A drop of dawn and grease is gone. Well, things in the bedroom have always been pretty good. Yeah, no complaints. Weve always had a lot of fun, but i wanted to try something new. And im into that. So were using ky love. Its a pleasure gel that magnifies both of our sensations. Right, i mean, for both of us, just. Yeah, it just takes all those awesome feelings you usually rawr. Dare to feel more with new ky love. Want to know what keeps some l. A. Cops up at night. Drones. There has been at least one close call with the police helicopter. Reporter for lapd officers, a drone strike could be catastrophic. A drone is like trying to it could sneak up on you. Reporter a danger they face every time they fly. While there is yet to bea collision, the lapd 17 helicopters fly low and past. Pilots worry about even a small drone strike the windshield, the main rotor or one on the tail. We impact a drone. Now 5,500 pound of aircraft, 130 gallons of jet petroleum. We are 800 feet over los angeles, this should be airspace free of drones. More than 100 drones cited by pilots at this altitude and thousand of feet above. Breaking the rules. In late august this drone came within 50 feet of an lapd the pilot drove 200 feet. Air division commander, al lopez. There is an effort to find a way to crack down on bad behavior without a lot of success . There are no real regulations now. There are regulations the faa is recommending. For instance, recommending it stay in line of soogt of the operator. They dont fly over the unintended public. They dont fly at night. Reporter but the city is filing misdemeanor charges against the alleged operator, Martin Sheldon for using a dren to interfere with police. Lopez says its time for legislators to act. I hope it doesnt take an aircraft coming down because of a collision with a drone. Reporter do you worry about that happening . I worry about that every day. Reporter the lapd would like to the same law as pilots and afr reckless behavior. Scott, the man facing charges for comment. If convicted he could spend a kris van cleave for us in los thanks very much. Next. Have a look at this picture. A collector bought it at a junk shop in fresno for 2. The guy on the left is infamous outlaw billy the kid playing croquet. Photos of billy are extremely rare. Experts say this one could be worth 5 million. You cant put a price on this photo. Brian and Stephanie Toby were getting married sunday in san diego on a golf course where the president was playing. They stopped to watch him. He spotted them. And obliged them with a picture for their album. This picture in sarah raes wedding album. As her wedding in clarksville, tennessee was ending, rae a paramedic got a call her father and grandmother were in a car accident. She rushed to the san to help. Fortunately, everyone is okay. For all those men who claim they read playboy for the articles. Youre about to get a chance to prove it. [text message alert] [crashing] finally tonight, is it news when a major publication promises to cover more of what made it famous . It is when the publication is playboy. Heres anthony mason. Reporter from its first issue in 1953, publisher hugh hefner put playboy on the front lines of the sexual revolution. I think i started playboy because i was raised in a lot of repression. A methodist midwestern home. He called his magazine a pleasure primer for the masculine taste and a smart swinging lifestyle that hef came to embody. On playboys 50th anniversary in 2003, he said. In a very real way in terms of pop culture and sexual attitudes, we do live in a playboy world now. Reporter the magazine that gave the american male the playmate of the month, the nude center fold that became its signature, declared the era of full nudity over. Why, playboy explained in a statement. The short answer is, times change. Dominique patton Senior Writer at deadline hollywood. Theyre looking to go to a younger demographic. Hugh is 89 years old. An icon and leader in the battle of sexual liberation. He is not the person advertisers want to read or buy the magazine. Reporter in a way, playboy was overtaken by the revolution it helped unleash. With the internet making pornography easily available, the magazine circulation has dropped. For more than 5. 5 million in 1975, to little more than 800,000 leaders today. The real basis of the change is the bottom line they have got to do something. Reporter when playboy removed nudity from its website last year, traffic soared from 4 million to 16 million unique users a month. The average age fell from 47 to 30. So the magazine will still show women in provocative poses but they will no longer be fully nude. And yes, playboy will still feature what men always said they really bought it for, the articles. Anthony mason, cbs news, new york. And thats the cbs wednesday. For some of you, the news continues. For others, check back with us a little bit later for the from the Broadcast Center in new welcome to the cbs overnight news. Im michelle miller. The democratic president ial candidates squared off last night in las vegas. For the first of six primetime debates. It was Bernie Sanders first real chance to challenge Hillary Clinton in person. They were joined on stage by former Maryland Governor martin omalley, rhode island governor, and former u. S. Senator james webb. Here is some of what they had to say. Do you want to shield Gun Companies from lawsuits or not . Of course not. This was a large bill. For example, do i think a gun shop in the state of vermont that sells legally, a gun, to somebody, that somebody goes out and does something crazy. Be held responsible. I dont. On the other hand where you have manufacturers and you have gun shops knowingly giving guns to criminals, or, aiding and abetting that, of course we should take action. Secretary clinton, is Bernie Sanders tough enough on guns . No, not at all. I think we have to look at the fact that we lose 90 people a day from gun violence. This has gone on too long. Its the time the entire country stood up against the nra. The majority of our country supports background checks and even the majority of gun owners do. Senator sanders did vote five times against the brady bill. Since it was passed more than 2 million prohibited purchases have been prevented. He also did vote as he said for this immunity provision. I voted against it. I was in the senate at the same time i wasnt that complicated to me. It was pretty straight forward to me. He was going to give immunity to the only industry in america. Everybody else has to be accountable. But not the gun manufacturers. We need to stand up. And say, enough of that. We are not going to let it continue. Well bring you all in on this. Senator sanders, you have to be able to respond. As a senator from a rural state. What i can tell secretary clinton that all the shouting in the world is not going to do what i would hope all of us want. That is keep guns out of the hand of people who should not have those guns. And end this horrible violence that we are seeing. I believe that there is a a consensus said we need to background checks, do away with the gun show loophole that we Mental Health the we have to purchasing issue. And that when we develop that consensus, we can finally, finally do something to address the gun. Governor chaffee whats the greatest National Security threat to the United States . Certainly the chaos in the middle east, no doubt about it, and started with the iraq invasion. Nuclear iran the biggest threat, isil, climate change, makes cascading threats even worse. Secretary clinton . The greatest National Security threat . I think it has to be continuing threat from the spread of nuclear weapons, into the wrong hand. I know that terrorists are constantly seeking it. Thats why we have to stay vigilant but also united around the world to prevent that. Senator sanders . Telling us if we do not address change. To Sustainable Energy the grandchildren may not be habitable. Senator webb . Our relationship with china. Our greatest daytoday threat is cyberwarfare against the country. Greatest military operational you served in vietnam. Youre a marine. Once a marine always a marine. A decorated war hero. Became secretary of the navy. During the vietnam war the man standing next to you, senator sanders, applied for status as a conscientious objector, can he serve as a credible commanderinchief . Everybody makes their decisions. When a time there is conscription. As long as they go through the Legal Process that our country requires, i respect that. And, it would be for the vote tires decide to, whether senator sanders or any one else should be president. I will say this, coming from the position that i, what i have come from, from a military family, with my brother, a marine, my son was a marine in iraq i served as a marine. Five years in the pentagon, i am very comfortable that i am the most qualified standing up here today to be your commanderinchief. Not a young man today. When i was a young man, i strongly opposed the war in vietnam. Not the brave men like jim who fought in the war, but the that war. That was my view then. I am not a pacifist. Anderson, i supported the war in afghanistan. I supported president clintons effort to deal with ethnic cleansing in kosovo, i support air strikes in syria, what the president is trying to do. Yes, i happen to believe from the bottom of my heart that war should be the last resort that we have got to exercise diplomacy. I am prepared to take this country into war if that is necessary. Secretary clinton, you are going to be testifying before Congress Next week about your emails for eight months you havent been able to put it behind you. Dismissed it. Joked about it. Called it a mistake. What does that say about your ability to handle crisis as president . What i did was allowed by the state department. It wasnt the best choice. I have been as transparent as i know to be. Emails. Asking that they be made public. And you are right. I am going to be testifying. I have been asking to testify for some time. And to do it in public which was not originally agreed to. Isnt it a little hard forup to call this just a partisan issue. There is an fbi investigation. Ago said this is a legitimate issue . I never said it wasnt legitimate. I said i have answered all the questions if i will certainly be doing so again before the committee. But i think it would be really unfair not to look at the entire picture. This committee spend 4. 5 million of taxpayer money. They said they were trying to figure out what we could do better to protect our diplomats so Something Like benghazi wouldnt happen again. Not be great politics. But i think the secretary is right. And that is that the American People are sick and tired of hearing about your damn emails. Thank you. Thank you. Me too. Me too. You know . The middleclass. Anderson. Let me Say Something about the media as well. I go around the country. Talk to a whole lot of people. Middleclass of this country is collapsing. We have 27 Million People living in poverty. Massive wealth. Income inequality. Trade policies have cost millions of decent jobs. The American People want to know whether we will have a democracy or an oligarchy as a result of citizens united. Enough of the emails. Lets talk about the real issues facing america. Round two of the democratic president ial debates is saturday november 14th in des moines, iowa. You can watch it right here on right back. The prov formula locks moisture inside my hair and the damage from 100 blowdries is gone. Workers at Blue Bell Ice Cream factory in texas say management ignored their complaints bout conditions at the plant which was later linked to an outbreak of listeria. Ten people got sick from the bacteria. Three died. The