let's go to this geneticist at lester university, dr.e semen samples from both murders and cement the case with his new thing called genetic firing making and prove that he did both of them because we knew he did both of them. >> dr. jeffries didn't know where he could do it or not. this sort of analysis had never been done before. the breakthrough technique is called restriction technique polymorphism. rflp. it can identify an individual just on a small amount of dna, dna that can come from semen, blood, hair roots and other elements. dna is present in all living cells. it's a little like a computer program containing coded instructions on how to make a human being. no two individuals have the same dna pattern except for identical twins. dr. jeffries' task was to take the semen recovered from lynda mann and dawn ashworth and compare it to the blood sample from richard buckland to see if it was a match. first, white blood cells from richard buckland's satchel was treated with a chemical reaction that allows the dna to float free. next th

. >> host: professor lester spence of johns hopkins university is the author of "stare in the darkness, the limits of hip-hop and black politics." university of minnesota press publisher. >> you're watching booktv television for serious readers. you can watch any program you see here online at booktv.org. >> april 4, '67, he is in new york city speaking at riverside church in manhattan giving a speech called beyond vietnam and in that speech king calls america the greatest purveyor of violence in the world today. he had been on record being opposed to war but this is the first time he has given peter, a major address to the nation condemning the war and he lays out in detail our relationship with vietnam our history with vietnam, lays it out, one of the rare times king actual reads the entire text because he was more of a he was an orator obviously extraordinaire. "i have a dream" speech he went off the script and started freestyling the i have a stream stuff. he was good off script like some people who have to use a teleprompter for everything they say. but, dr. king gave the speech b

. >> host: professor lester spence at johns hopkins university is the author of "stare in the darkness: the limits of hip-hop and black politics." university of minnesota press publisher. >> host: the name of the book is "the malaria project." the author is karen masterson. professor masterson, what is malaria? it is a series of disease. it's not one. it's caused by a parasite from the genus plasmodium and these different parasites to different dings and you find them in different parts of the world. but they all cause some similar symptoms lake intense fever. it looks furnace hot fevers and bone deep chills and body pain and headaches. some wall hiding your liver and relapse years later. you never know whether you've gotten rid of it. some in africa can clump together and cause circulatory problems and put you in a coma. you can play soccer in the morning and by evening you are dead. malaria is the word we use to describe the diseases caused by this genus of parasites. although there is a monkey malaria that is species and of a likely become the fifth human malaria. it's in the proces

lester. >> erica, thanks. a universityis coming under fire after holding a couple of off campus parties at resorts that ended with rooms trashed in garbage. now they are facing serious fallout. here is nbc's john yang. >> reporter: call it animal house on ice. crushed ceiling tiles, wrecked furniture, cabinet doors destroyed. carpet ruined. the aftermath of about 120 college fraternity and sorority students on holiday weekend run amuck. >> appalling. disturbing. never thought that something like that could actually happen with that much damage. >> reporter: tree top resort and spa officials said 50 rooms were trashed and damages were set at $150,000. the general manager said they will pursue every avenue to press charges. sigma ahpla has suspended the chapter while the school investigates. >> disappointed with the behavior. the students need to be held accountable for their actions. >> reporter: in a statement, chapter president said he was embarrassed and ashamed. said the frat would pay for all damages. other michigan st

universal and remarkable. we begin our coverage with our team in paris tonight. first to lester holt to start us off. hey, lester. good evening. >> reporter: brian, good evening to you. a day of mourning has been a day of anxiety. people here have been glued to a drama playing out about an hour's drive from here. a hunt for two of the suspects who were reportedly seen earlier in the day. a third suspect, an 18-year-old, turned himself in last night. this country is on high alert. parisians paused in solemn silence today, remembering the victims of yesterday's attack. [ gunfire ] >> reporter: while just 40 miles away, police swarmed an area northeast of paris in france's champagne region. a manhunt on a massive scale. roads blocked, s.w.a.t. teams going door-to-door after what is believed to be the last sighting of the suspects, brothers said and cherif kouachi. nbc's bill neely in the thick of the hunt. >> reporter: police initially came here because at a gas station up the road an employee reported seeing two armed men. a short time ago two men were seen abandoning the car and then heading into the

lester is well with the addition instead those pieces need to be rearranged. enforcement has to come first not promised in the future but actually implemented rolled out surviving challenge. things like universal use of the e-verify system. these are tracking so visitors will know when visitors leave. once that is in place it doesn't solve everything but it demonstrates a commitment to enforce the law. then we have a different grand bargain than the one that the gang of eight and president obama and john mccain and everybody else wants which is legalization amnesty for significant a significant share of the illegal immigrants who are still here in exchange for the permanent cuts in legal immigration in the future. thank you. [applause] >> let me begin i apologize to roger and my fellow panelists who are here because of family health problem requires me to -- out of here soon as i have made room my remarks that i find myself agreeing with so much of what both mark and alex have said that i must be setting some kind of record for cognitive dissonance. hold on a second. talking just now about the senate immigration bill. much discussed in rarely seen. there it is. [laughter] 1197 pages. it has to

universal belief in freedom of expression is something that can't be silenced because of the senseless violence of the few. >> reporter: savannah, people here anxious to see these men caught. >> all right, lester holt in paris for us, thank you. general michael hey den, the former director of the cia and nsa, now principle at the risk management advisory firm. general hayden, good morning to you. i'm sure you looked closely at the video as we have, but you have a more trained eye. tell me what you see. are they attackers, who, in your estimation, have a lot of sophistication and training? >> they do, particularly compared with other attacks we've seen in ottawa, in sydney, and elsewhere. they are very comfortable in their own skin, comfortable with their weapons. they were calm. this was not a random attack. it was well planned. it was not a suicidal attack. they escaped in order to be able to kill again. so this is kind of the high end of the new genera of attacks i'm afraid we're going to see for some time now, the self-radicalized, self-motivated kind of individual, living in full view inside of western democracy. >> and i wonder if this is the new flavor of terrorism that we should come to