Pelley the tension has been mounting. The School President did nothing. They were subjected to rarely slurs on campus that is overwhelmingly white. The pressure continued. Students went on a Hunger Strike and the Football Team threatened to stop playing with their coachs backing. Today president tim wolfe resigned along with the schools chancellor and adriana diaz is in columbia. Reporter students celebrated the news after an emotional University President tim wolfe announced he was stepping down. I take full responsibility for the frustration, and i take full responsibility for the inaction that has occurred. [chanting] reporter wolfe surrendered to student protesters who spent done enough to address racist incidents on campus where only 7 of the student body is black. The concerns on mizzous campus go back as far as 2010, before tim wolfe was president , when during black History Month cotton balls were placed on the ground outside the black culture center. The students responsible were suspended and charged with misdemeanor littering, not a hate crime. This smetser a swastika, painted in human feces, was discovered in a dorm bathroom. The student body president complained he was called the n word and several other students made similar complaints. The University President made no comments on these incidents. Last month protesters approached the president s car at a homecoming parade. He did not engage. In a statement weeks later, wolfe said, my apology is long overdue. My behavior seems like i did not care. That was not my intention. Last week a grad student, jonathan butler, went on a it is our duty to fight for our freedom. It is our duty to fight for our freedom. Reporter and protests gained momentum on saturday after the Football Team said it would refuse to play anymore games until the president was removed. Butler ended his Hunger Strike today. How do you feel . Empowered. Reporter football coach gary pinkel. Reporter i didnt look at consequences. It wasnt about that at the time. It was about helping my employers and supporting my players when they needed me. Reporter the university is set to lose more than 2 million if the Football Team didnt play saturday. And, scott, student activists are still demanding a more diverse faculty and a say in the appointment of the next president. Pelley adriana diaz for us tonight. Adriana, thank you. Two city marshals from marksville, ra la, are being held tonight on 1 million bond. Theyre charged with murder in sixyearold boy, the son of a man they were pursuing. David begnaud on a case the state police chief calls the most disturbing thing hes ever seen. Reporter cbs news has learned that video from a Police Officers body camera appears to show christopher few with his hands in the air before investigators say he was shot at 18 times by deputy ward Marshalls Norris greenhouse and derrick stafford. Mike edmonson is head of the police department. So you dont know why those two marshals wanted to pursue that man in the first place . We dont know that. Were going to find out. Reporter what investigators say they do know is on tuesday night november 3rd, roughly 9 20 p. M. , chris few was driving in a white s. U. V. With his sixyearold son Jeremy Mardis in the front seat. They were being pursued by the deputy marshals. Few came to a front end. Thats when the deputy marshals started shooting. Few still inside his vehicle, put his hands in the air. Chief edmonson has seen the footage. Does it look like christopher few was trying the bruce that vehicle as a weapon to hurt those officers . Nothing tells us any of that right now. All we saw is the vehicle backing up. All we saw was a gunfight. Reporter Jeremy Mardis, who had autism, was hit by five bullets in the head and chest. He died at the scene. His father was also shot and is still in the hospital in fair condition. Officers, did you guys intend to kill that father and son . The deputy marshals turned themselves in friday night. Doug anderson is the Avoyelles Parish sheriff. This is a small community. Everybody knows everybody. Its a tragic situation. And everybody is paying the price. Reporter sixyearold jeremy was buried today in hattiesburg, mississippi. The few family Attorney Says chris, too injured to attend the funeral, has not yet been told his son was killed. The deputy marshals have not yet entered a plea. We reached out the their attorneys tonight but have not yet gotten a call back. Scott, as for a motive, we can confirm tonight the investigators are probing whether one of the deputy marshals had a personal grudge against christopher few. Pelley David Begnaud for us tonight. David, thank you. A top federal safety regulator is shifting gears today for the first time and is calling for seat belts in all school buses. Kris van cleave is following this. Reporter 16yearold Ashley Browns life ended on her way to a High School Soccer game when the bus she was riding in crashed. Her father brad believes a seat belt would have saved her. In the a day goes by we dont think of her. The wounds are refreshed every time we see a accident happened that takes the life of another school child that could have been prevented with a lap shoulder belt on a school bus and every motor coach. Reporter last month this school bus flipped over in virginia injuring 28. It did not have seat belts. Safety administration estimates four children die every year in large school bus crashes. The agency believes seat belts would cut that in half. We are used to putting on a seat belt. You get on a school bus, and theyre not there. And its this big void in our safety system. Reporter administrator Mike Rosekind is hoping change can come without new regulations, but currently just six states require seat belts on school buses, and they are expensive, costing between 7,000 and 10,000 a bus. With nearly a half Million School buses in the u. S. , the cost to retrofit them all could go into the billions. Seat belts save lives. They should be on every school bus for every kid. Lets stress how the make that happen, not what the barriers are, but how to get those seat belts on every school bus. Reporter brown welcomes the renewed push for seat belts but says it does not go far enough. Saying it as policy is a good step. I think thats what is needed is the regulation and law. Reporter as for the range, from 2,000 up to 8,000 students per year are hurt in school bus crash, so in a way this is a bit of peer pressure on School Districts and bus makers to install seat belts and for good reason, scott. Nhtsa says if it has to go through the regulationmaking process, that could take up to a decade. Pelley our transportation correspondent kris van cleave. Thanks, kris. In the race for president , the top eight republican candidates will meet tomorrow night for their fourth debate, and a poll out today puts ben carson just slightly ahead of donald trump in south carolina, an early primary state. Marco rubio is in third place. Hillary clinton is far ahead on the democratic side, which is forcing a change in tone from her competitors. And nancy cordes has that. Reporter in concord, new hampshire, today, Hillary Clinton filed her papers to run in the nations first primary, a race thats growing sharper by the day. That is not Hillary Clintons position at all. Reporter vermont senator Bernie Sanders has gotten bolder in calling out the frontrunner. I have many disagreements with Hillary Clinton, and one is that i dont think its good enough just to talk the talk on Campaign Finance reform. Reporter six months ago sanders was reluctant to draw even mild contrasts. Do you think youd be a better president than Hillary Clinton . Its not a question of personality. Hillary clinton is a very intelligent woman. Reporter but hes now begun taking subtle digs at clintons character. In his First Campaign ad. An honest leader. Reporter and at a democratic dinner in iowa. Every day i will fight for the public interest, not the corporate interests. Reporter on thursday sanders told the boston globe, i disagree with Hillary Clinton on virtually everything. Is that your experience . Do you disagree on virtually everything . Of course not. That would mean he doesnt agree with me on equal pay for equal work, he doesnt agree with me on paid family leave, he doesnt agree on making sure incomes rise, including raising the thats obviously not the case. Reporter sanders sharpened his rhetoric after clinton was more confrontational than he expected at first democratic debate and after polls showed her closing the gap here in new hampshire, which is his strongest state, scott. Pelley nancy cordes on the campaign, nance, thank you. Cbs news will bring you the next democratic debate from des moines, iowa, on saturday at 9 00 p. M. Eastern. Our john dickerson, the anchor of face the nation will be the moderator. Two americans were killed today when a Jordanian Police officer opened fire at a Training Center near amman. The two americans worked for u. S. Government contractor training palestinian police. Three others were killed. The officer was shot dead. His motive is not clear. An act of terror is suspected in the russian jet tragedy, and cbs news has learned that investigators are focusing on the sinai branch of isis. The leading theory is that a bomb brought down the plane over egypt, killing all 224 on board. Russia has canceled regular flights to egypt and is evacuating more than 40,000 of its citizens. Today a u. S. Senator called for hearings after a 60 minutes investigation last night. John tester of montana said that the broadcast exposed flaws in background investigations that are used to grant security clearances to federal employees and contractors. Tonight we have more of our investigation on this broadcast, this time a look at how people who hold on to their clearances are able to do so even after crimes and psychotic behavior. In 2013 aaron alexis was profoundly psychotic when he office. He was a contractor with a security clearance. He had access to that building because he was supposed secret materials that he never should have been able to get to. Reporter Paul Stockton is a former assistant secretary of defense who led an investigation. He found that after alexis got his clearance to handle secrets, he was arrested for firing a bullet through the ceiling of his apartment, arrested for vandalizing a nightclub and he displayed psychotic behavior. It was shocking that he was able to get and retain a security clearance. Reporter but alexis retained the clearance because by regulation it was up to him to selfreport his crimes to his superiors. Otherwise his clearance would not be automatically reevaluated until it expired after ten years. Army specialist rickie elder is a similar case. After he got his clearance, he was charged with two assaults, a d. U. I. Hitandrun an aggravated battery. It took five years to suspend his clearance, after which during a briefing he killed his commander and himself. How do you assess the National Security clearance process as it exists today . I think its elaborate and woaffully insufficient. Pelley former secretary of defense john hamre says people should be monitored continuously for signs of illness and Mental Health behavior. Once youre in youre in. Once youre in youre inch we should turn this up r upside down and say, what are the key jobs that are so sensitive that well monitor these people intensively and consistently . Pelley to see the full investigation, find it on cbs. Com. Click on 60 minutes. Russia could be banned from the next summer olympics after the World Antidoping Agency said today that russia is engaged in widespread sports doping at all levels. The report said the cheating is organized by the russian government itself. The Antidoping Agency said that a moscow lab destroyed nearly 1,500 athlete test samples to keep them from investigators. And russian intelligence agents enforced the cheating. What we knew about Blood Pressure may be wrong. An important new study. And shamus days as a performer are numbered when the cbs evening news continues. 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Seaworld has been under fire since the documentary black fish was released in 2013. It criticized the treatment of the orcas and chronicle an attack against a trainer. Dawn brancheau was killed when a whale pulled her into the water. Attendance has been falling and the company has lost half its market value in the past two years. Hargrove. People can be inspired and not have to see a caged animal ha has given up their life for you to be entertained. California Coastal Commission barred the park from breeding california congressman adam schiff plans to ban breeding of captive orcas nationwide, which would impact seaworlds other parks. I view the step taken by seaworld today as small but positive. But it really needs to go much further. We really need to end the captivity of these majestic creatures. Reporter now seaworld is only ending the killer whale show at its park in san diego. Scott, the company says the show will continue at their parks in orlando and san antonio, texas. 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Get all day minor arthritis pain relief i state your name , do solemnly swear that i will support and defend the constitution of the United States against all enemies foreign and pelley tonight we have results of a new study that says sharply lower bloop pressure leads to significantly longer lives. We ask dr. Jon lapook to explain. Reporter current guidelines of people with high Blood Pressure generally target those below 140, for those 06 and over below 150. This trial followed 9,000 people and at least one other risk factor for heart disease. Doctors used medication to lower their pressure to under either 140 or 120. In august the study was ended early when data showed a clear difference in outcomes. Results published today show the under 120 group had a 38 lower risk of Heart Failure than the other group and a 27 lower risk of death. However, the under 120 group also had more serious side effects, like low Blood Pressure, fainting, abnormal blood chemistries and kidney problems. Dr. George bakris of university of chicago medicine specializes in treating high Blood Pressure. In these people that are older, you can push the Blood Pressure down to 120. It is well tolerated, and there is a benefit. Pelley so, jon, what are doctors likely to do with this information . Reporter , well, doctors tend to be cautious. While the lower Blood Pressure problems, it can increase risks of the other problems we talked about, so i think youll see ongoing discussion of the pros and cons. Pelley jon, thank you. There is plenty to talk about at what happened at meridian, mississippi. As folks inside an ihop, the parking lot was gobbling up their cars and trucks, 13 in all. No one was hurt in the sinkhole. 211 diewls after dieing in a duel, hamilton is bigger than ever. Thats next. This portion of the cbs evening news is sponsored by pacific life. For life insurance, annuities and investment, choose pacific life, the power to help you succeed. Ys there for my daughter. 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Lin Manuel Miranda is the playwright and composer, and he hamilton. Charlie rose sat down with him for 60 minutes. This is what i knew from high school, i knew hamilton died in a duel with the Vice President and he is on the 10 bill. Reporter as you read it, what happened . I was thunder struck. I got to the part where a hurricane destroys st. Croix where hamilton is living and he writes a poem about the carnage and this poem gets him off the island. Reporter you saw a rap artist in him . I do you a direct line about hamilton writing his way out of his circumstances and the rappers i grew up with. Reporter mirandas gift is making that story come alive. Witness hamiltons battle with jefferson over how to pay off the revolutionary war debt. In virginia we plant seeds in the ground we create around this is too many damn pages for any man to understand declaration welcome to the president were running a real nation would you like to join us or do whatever the hell it is you do in monticello a civics lesson from a slaver we know who is really doing the planting i think the secret sauce of this show is i cant believe this story is true. Its such an improbable and amazing story, and i learned about it while i was writing it. I think that enthusiasm is baked into the recipe. Pelley charlie rose with lin Manuel Miranda. Thats the cbs evening news for tonight. For all of us at cbs news all around the world, good night. The son of a polish immigrant who grew up in a brooklyn tenement. He went to public schools, then college, where the work of his life began fighting injustice and inequality, speaking truth to power. He moved to vermont, won election and praise as one of americas best mayors. In congress, he stood up for working families and for principle, opposing the iraq war, supporting veterans. Now hes taking on wall street and a corrupt political system funded by over a million contributions, tackling Climate Change to create cleanenergy jobs, fighting for living wages, equal pay, and tuitionfree public colleges. People are sick and tired of establishment politics, and they want real change [ cheers and applause ] Bernie Sanders husband, father, grandfather, an honest leader building a movement with you to give us a future to believe in. Sanders im Bernie Sanders,