one day i'd love to see a conservative say that he agreed with the professor on and a liberal say he agreed with the police officer. that would be a historic night. thank you both very much. i would now like to acknowledge a couple of special guests from portsmith, arkansas tonight. lisa kneehaus are winners of our remarkable contest. she and her 7-year-old son alex are here in the house tonight. they they are. we want to congratulate lisa and alex. great having you here. congratulations on a great entry, winning the contest, the trip here to los angeles. a chance to see this show. could be one of the highlights of your week. anyway, here now is anderson cooper and "ac 360." anderson? thanks so much. the professor, the policeman and president had beers at the white house today. that story leads our broadcast. we're following breaking news in the michael jackson case. 360's randi kaye has it. clues found at the las vegas

properties of conrad murray, jackson's doctor, clues to how jackson obtained his drugs and some of the names he used. let's quickly check in with randi for a preview. what do you have? >> reporter: hi there, anderson. inside the search warrants we have from the searches of dr. conrad murray's clinic and home in las vegas is a major piece of news. as you know, dr. murray is jackson's personal physician who was at his home when he stopped breathing. for the first time, we see in the warrants, in writing, that authorities are looking for evidence related to propofol or diprivan. that's the powerful sedative authorities believe killed michael jackson. we know from a source that dr. murray gave him that drug within 24 hours of his death. we'll tell you if they found it. we'll also let you know why they may have been looking for drugs in the name of michael jackson's son, prince? how many aliases was he allegedly using to get drugs? we'll tell you. all the details on that, anderson, and what was seized as evidence. coming up in a few minutes. on that beer at the white house, some are calling it ale

to the chief or the audacity of hops. a few guys with cold beers on a hot day with 4 zillion cameras and a national controversy for company. all this, two weeks the day after cambridge police sergeant james crowley arrested harvard's henry louis gates jr. at his home. then president obama weighed in, talk radio erupted, the president made calls, sergeant crowley suggest a beer and here we are. that's not all, not by a long shot. candy crowley has the "raw politics." >> reporter: on a humid summer night beneath a magnolia tree off the rose garden, the vice president, the president and black professor and the white policeman who arrested him had a beer together. >> no tension? >> no tension. >> reporter: apparently it did go well. the president called it a friendly, thoughtful conversation and you'll never guess what, sergeant james crowley says he and professor henry louis gates are planning their next meeting. >> i would like not only to discuss but i'd also like to listen to professor gates' perspective. he has the credentials to

enlighten me a little bit and perhaps the professor as he expressed to me has the willingness to listen to what my perspective is as a police officer. >> reporter: heads of state have come away from the white house with a lot less but do not call this a beer summit. >> the clever term, this is not a summit, guys. this is three folks having a drink at the end of the day and hopefully giving people an opportunity to listen to each other. that's really all it is. >> reporter: not exactly all. it is also the president's attempt to get out from under headlines he helped write. it was a rather routine cop call on a possible break-in at a home in cambridge. it turned into a national test on racial profiling and relations between police and minority communities. the story was elevated and propelled by five words at a presidential news conference. >> the cambridge police acted stupidly.

>> reporter: it fueled the fire and knocked the president's health care message off the front pages. the president had to explain, re-explain, call sergeant crowley to personally explain and then invited both crowley and gates to the white house. now, the professor and the cop are working out details of their next meeting. >> i think meeting at a bar for a beer on a second occasion may send the wrong message. maybe kool-aid or iced tea or something like that. >> reporter: the president is dying to get back to his agenda and put cambridge on the back page. >> i would be surprised if you guys all make this the lead as opposed to a very important meeting we had with one of our most important partners in the world. >> candy, professor gates issued a statement tonight. what can you tell us about that? >> reporter: he did, just a couple of hours ago. he put it on root.com. he's the editor in chief. professor gates wrote, it is

incumbent upon sergeant crowley and me to utilize the great opportunity that fate has given us to foster greater sympathy among the american public for the daily perils of policing on the one hand and for the genuine fears of racial profiling on the other hand. which is, anderson, remarkably, like what sergeant crowley said. so they did actually come away with what looks like, at least a preliminary meeting of the minds. >> there's going to be another meeting to come. candy, stick around. before we dig deeper, i do want to play a bit more of what sergeant crowley said after the meeting in his own words. listen. >> i think what you had today was two gentlemen agree to disagree on a particular issue. i don't think that we spent too much time dwelling on the past. we spent a lot of time discussing the future. the professor and i, both on individual tours of the white house. the professor approached me and introduced his family, i introduced my family.

then we continued on with the tour but as a group. two families moving together. that was the start. so it was very cordial. >> it was a private discussion, it was a frank discussion. i'd rather not go into the specifics of what we discussed. >> did the president make any contributions to the discussion? >> he provided the beer. >> was that pretty much it? >> he contributed in a small part but he really wanted to bring two people together to try to solve not only a local issue in cambridge but also what has become a national issue. i've gotten phone calls, e-mails, letters, things in the mail from the men and women of the police department and i think this has brought us closer together as a law enforcement family. >> how does your perspective change? >> he's an interesting man. >> an interesting man in what way? >> he's just a regular person, sitting around the table, having a discussion about an issue and

he's very cordial. i respect him a great deal. >> no tension? >> no tension. >> could you joke around and have an ordinary conversation or was it business? >> it was both. it was business but discussing it like two gentlemen instead of fighting it out either in the physical sense or in the mental sense in the court of public opinion. it was very productive. >> sergeant crowley in his own words. president obama calls this a teachable moment. it certainly is a talkable one. join the live chat under way at ac360.com. i'm about to logon myself. we'll continue the discussion here after the break. also, the rest of what randi kaye uncovered about michael jackson's apparently massive prescription drug habit. in iran, major new protests caught on tape inspired by the killing of that young woman, neda, whose death is galvanizing protest movement. these people are risking their lives to have their voices heard. and the innocent man who went to prison largely on the evidence of a dog's supposedly infallible nose. [ new age music plays ]

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after waiting the -- president obama was doing more than playing friendly bartender. today he was doing political damage patrol. a poll from the pew foundation showing 29% approval. 41% disapproval. digging deeper now, bringing back candy crowley. the president said this get together basically went well. served its purpose. as far as the white house is concerned or perhaps as far as they hope, is this thing over?

>> i think it's the latter. as far as they hope this thing has moved on as far as they're concerned. what they wanted to do was sort of launch gates and crowley off into their own universe and move on. because at this point, the president despite all of the calls for having sort of national forums on race and racial profiling, he just -- we have the economy out there. we have health care out there. we have been knocked off their message since he jumped into it in the news conference. >> professor watkins, there's no doubt the president wants to move on to something else. it's kind of weird that for a guy who talked about a national conversation about race, this is kind of the only mention we've had of it. >> i think president obama is being a smart politician by moving on beyond this issue. this is not the kind of problem that's going to be solved in one election cycle. we have to realize that this is almost like going to the middle east and obtaining peace in a very short amount of time. you know, when you look at the

situation, what has to happen, in my opinion, is that this has to be taken up by the people. we have to help the president. we have to create what i would call the arc, the a-r-c, the american racial conversation. that's where we force ourselves to have those uncomfortable discussions in which those discussions are laced with forgiveness, empathy, love and the ability to listen. what i encourage people to do is to stop for a second and try to see if you can understand the other perspective. if you support sergeant crowley, try to see if you can understand why somebody might support professor gates. if you can't understand that, talk to somebody and ask them why they support professor gates. on the other side, i think people should do the same thing. if we don't have a dialogue and desire to understand, that we'll never get past this problem. >> it's always key on any debate i think to walk in someone else's shoes. candy, has the white house learned a political lesson from this? has the president? >> well, what is interesting to me about this is that president

obama is probably the most verbally careful candidate or president i have ever covered. this is a man who seems to think about words even as he is about to say them. that he said this at the news conference and it caused -- just sort of fed into this story and divided people again on whether he should or should not have said it really was kind of amazing to me that he would do it. i think part of that is when you get relaxed, which he clearly is, when he gives news conferences, he gives a number of them. he's very good at the back and forth. and a lot of people that i talked to afterwards, i said, what is the deal here? these are outside the white house people. they said to me, i think the president seems distracted. they thought he seemed distracted by health care. this was about the time where you were looking at house conservative democrats thinking they were going to unravel health care and the white house was trying to figure that out. they felt that the president seemed distracted. i guess the key here is to

concentrate on every question. and move on. because it was really very, very odd for this particular president to say something that would be so controversial. he just doesn't do that very often. >> particularly on the subject of race. he's avoided that in the past. as president. it's interesting, professor, i want to read a message obtained from a sergeant. the african-american cambridge officer who came on the scene later. he said he supported crowley 100. when he was on this show, he said if he arrived on the scene first things would have turned out differently. he has gotten push back on that. he says i have become known at least to some as an uncle tom. i'm forced to ponder the notion that as a result of speaking the truth and to the defense of a friend and colleague, who just happens to be white, that i have somehow betrayed my heritage. are you surprised he's facing that kind of criticism? >> no, i'm not surprised. i've gotten hundreds of e-mails to the same effect. >> about him?

>> no, not about him but the accusation of being an uncle tom. people are used to me fighting for race. they've seen me do that. one thing i absolutely refuse to do was to take sides without knowing all the facts. >> people say that about you because of the positions you've been taking? >> yes. absolutely. but you know what, for every person that has something negative to say, there are other people who have something positive to say. one thing i believe in, anderson, is the goodness of the american people. i know about the goodness of black american people as well. we're christian people. we want to do the right thing. what i would encourage this officer to do is look deep within himself and ask himself, is your commitment to the blue line overriding your commitment to fairness? we know it is possible there are some officers who are so committed to the blue line they can look past the indigs cessions of their colleagues. one of the things i'm absolutely

positive to say, not every cop is a bad person. not every cop is corrupt. you have to find out the facts. if the facts don at line with what their perception of the situation is, you have to think that through and make your own decision. don't let anybody think for you. >> professor boyce watkins, enjoyed having you on. again, thank you very much. candy crowley as well. thank you. a lot more online at ac360.com. right now, a live chat and views from david gergen. who has seen these kind of photo opts from the inside of the white house. he's writing tonight about president obama's hope to turn this one into a teachable moment. that's online right now. coming up, the clues police think they uncovered when they searched jackson's doctor's home and office. names, aliases and he had a lot of them. how many other doctors they could be looking into. later, the german shepard whose nose said a man was a murderer. dekds later, otherwise.

just ahead, a police dog whose handler played him off as a fooling-proof tracking machine. it was all a lie. his nose put at least one innocent man behind bars for a long time. how the truth ultimately came

out. erica hill with the 360 bulletin. an american dead in a fire fight with insurgents. nearly 700 u.s. troops have died in the region since 2001. u.s. and british officials said this week they remain committed to staying in afghanistan. despite rising casualties and declining support for the war there. jury deliberations beginning in the corruption trial of former louisiana congressman william jefferson. he's accused of using his office to solicit and receive more than $500,000 in bribes for himself and his family. this hay ring a bell. in june of 2007, federal agents filed charges after finding $90,000 in his freezer. jefferson says he is innocent. another big day for wall street. all three indices posting gains, the dow up 83 points. to its high better-than-expected earnings est close since november. reports and improving jobs picture credited for the climb. say hello to muffy. another lucky dog for you this week. she's so stinkin' cute. she vanished from her family's

house in brisbane, australia, nine years ago but was recently found alive and well in melbourne. a microchip in muffy's neck led police to her owners. and they will be reunited soon. >> nine years. >> isn't she sweet? >> cute looking dog. >> muffy. still ahead, the breaking news in the michael jackson story. we're going to dig deeper into the search warrants investigators served at dr. conrad murray's home and office. full of clues about the case investigators may be building. what they found is frankly stunning. also, if the iranian government thought the uprising was over, it thought wrong. we'll bring you the latest on a massive new outpouring when "360" continues. mom knew i needed calcium from day one.

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randi kaye obtained a copy of the search warrant investigators served two days ago when they searched the home and office of michael jackson's personal physician, dr. conrad murray. it spells out what they were looking for and what they took. randi joins us from los angeles. what surprises you most about what they found at dr. murray's properties. >> reporter: there's a lot of surprising information in here, anderson. the search warrant says they were looking for evidence quote, demonstrating crimes of excessive prescribing and prescribing to an addict. also evidence of manslaughter. the addict in this case is apparently michael jackson. the search warrant says authorities were looking for medications that were administered and prescribed including the powerful sedative diprivan which authorities believe killed michael jackson. the warrants say investigators were specifically looking for shipping orders, records relating to the purchase, transfer, receiving ordering, delivery, and storage of diprivan or propofol which it's also called. the investigation seems to focus

on that drug. they took paperwork, and the doctor's iphone. the key piece of evidence that really stands out for me is the cd with the name omar arnold on it. i confirmed tonight with a source close to the investigation, michael jackson used the name omar arnold to get prescription drugs and get procedures done without people knowing about them. now, anderson, we know he use that name and a cd with that name was taken from conrad murray's clinic in las vegas. >> is omar around ole the only alias that he seemed to be using? i'm assuming he had more. >> reporter: he certainly did. the search warrant shows authorities believe michael jackson was using 19 aliases in all. they were looking for prescriptions actually written in all of those names which includes the name of his personal chef, kai chase and his son, prince jackson. the chef told larry king tonight she didn't know anyone was using her name. dr. murray's attorney still says he's a witness and not named as

a suspect. the search warrant also named, by the way, seven other doctors who may have had correspondence with or written prescriptions for michael jackson in any of his aliases. it seems, anderson within they're trying to match up michael jackson, names he used with doctors they're looking at. the doctors include dr. murray, jackson's longtime dermatologist, dr. arnold klein and five other doctors were haven't reported on. they are looking for correspondence between jackson and cherilyn lee. that name is familiar. the former nurse who told us on 360 jackson begged her for propofol sedative so he could sleep. >> seems the investigation is zeroing in on dr. murray, you learned authorities are still collecting medical records elsewhere, right? >> they're still issuing subpoenas for records, still visiting doctor's offices. he told me just this week investigators seized records he says are related to the investigation from a plastic surgeon in beverly hills. that doctor is in the same

building as jackson's long-time dermatologist, dr. arnold klein. who we also know had his medical records subpoenaed. our source told us long ago that dr. klein was on the list of doctors being looked at. dr. klein who told cnn he was not on that list and that he never gave jackson anything more dangerous than demerol. >> the other big development today is the custody deal between katherine jackson and michael jackson's ex-wife. he'll get his wish for who's going to raise the kids, right? >> reporter: it seems that way. katherine jackson was named as the guardian. he want her to raise them and have custody. for weeks now there's been all this talk about whether debbie rowe, jackson's ex-wife will seek custody. we're talking about the two oldest children, those debbie rowe gave birth to. tonight, word of an agreement. katherine jackson will retain custody. debbie rowe will have visitation rights. this will be presented to a judge monday for final approval. the timing and the frequency of visitation will be determined by a child psychologist. the fees for that psychologist will be split by both parties. speaking of money, we should

point out, when debbie rowe gave michael jackson full custody of the children when the divorce was final years ago, in return she got paid $8.5 million. that was the settlement. in this case i'm told no money was exchanged as part of the custody deal. 7 this was a separate deal from the divorce agreement between jackson and rowe from years ago. as far as we're being told, anderson, debbie rowe did not sell her children as some had accused her of doing. >> comforting thought. i guess. randi, thanks very much. a senior legal analyst, jeffrey toobin. what do you make of this, that the search warrant said they were looking for things, such as prescribing to an addict. >> it underlines how complex this investigation is. because the key thing to remember about dr. murray is he was only michael jackson's doctor for about two months. >> right, he was like the hired gun just brought in to shepherd him through this concert. >> yes, get him ready for the tour, take him through the toward. this warrant suggests michael

jackson has an immensely complicated pharmaceutical history and was, in fact, an addict. so the issue of how he got drugs, from whom he got drugs, where -- when he was using, what he was using, authorities are going to have to figure that out before they charge murray with doing anything wrong. >> in california my understanding is giving drugs to an addict is an offense. >> it can be an offense if you know they're an addict. if you know they're an addict and you think the drugs are furthering the addiction. it's a hard crime to prove. it's rarely prosecuted. >> the fact that he was using 19 aliases, even his son's name to get drugs, it's interesting. all along we've heard that michael jackson was a great parent. in reality, how great a parent can you be if you're popping dozens of xanax a night? i don't mean that flippily against michael jackson but clearly if this guy's an addict, you know, there wasn't a lot of parenting going on. >> i don't know if there was

much parenting going on. this is how addicts are. they do anything to get drugs. they lie to people, use their relatives, they use their friends. they sometimes steal money. michael jackson seems to have plenty of money. he didn't have to steal money. again, the fact that they are essentially saying michael jackson was an addict makes the prosecution of anybody harder, because it suggests that jackson himself was the big initiator of getting all these drugs. >> do you believe no money in this deal between katherine jackson and debbie rowe, do you believe no money exchanged hands? >> that certainly jumped out at me as peculiar. given the history and the nature -- >> she complained she didn't get all the money from the settlement they were supposed to have long ago. >> right. the other thing that was odd about the settlement is the fact that visitation will be determined by a psychologist hired. most people who have custody issues, they work it out between themselves.

the fact that they had to hire a psychologist to handle it suggests that there's still a lot of animosity there and we probably haven't heard the last of that dispute. >> there's been the question of joe jackson's presence in the kids's lives. katherine's lawyer this morning said it's a nonissue. basically joe jackson doesn't live in l.a. a reality, she lives in california, he lives in las vegas. publicly at least in the mumblings of joe jackson, he's talked about him raising these kids along with katherine jackson. >> debbie rowe's lawyers have used as at least a negotiating ploy, their interest in keeping joe jackson away from her two children because of his history, according to michael, of abusing his children. it doesn't sound like that issue was fully dealt with in this dispute. it may simply have been a negotiating tactic that debbie rowe's people actually don't care much about. it may be that joe jackson is not really involved. with these kids much at all. >> it doesn't seem that joe

jackson has been -- he doesn't seem to know much about these kids or really exhibit much interest in these kids. >> if you ask joe jackson you'll get a confusing answer. >> that's what i glean from his public mumblings. it's hard to actually know, unless you get a full transcript. jeff toobin, appreciate it. thanks. child custody battles almost always painful, sometimes very ugly. especially when the famous are involved. go to ac360.com for an interactive guide for other celebrity custody battles. were doctors fueling jackson's dangerous addiction? seems like they were. tomorrow night, joe johns "keeping them honest." he shows us how easy it is to get prescription narcotics. joe? >> reporter: anderson, south florida has been called the painkiller capital of the u.s. people come here from all over the east to buy large quantities of highly addictive drugs. i spoke to one man who was arrested today who says he injects 25 to 30 painkillers every day.

>> addicted to drugs. >> reporter: we came here to broward county, florida, to take a closer look at what police are calling the next big problem, which some say is already here. anderson? >> that's tomorrow night. don't miss joe's "keeping them honest" investigation on the program. want to weigh in on a story we're talking about tonight? join the live chat at ac360.com. i apologize, we had a computer problem linking up before. conversation is underway. i'm about to logon. up next, thousands paying tribute to neda. young woman shot dead after the election. they're met with brutal force from the regime. video coming up. later, convicted of murder because of a dog. did a german shepherd lead police to the killer or was it a scam by the trainer? the story, just ahead. five co-workers are working from the road using a mifi, a mobile hotspot that provides up to five shared wifi connections. two are downloading the final final revised final presentation. - one just got an e-mail. - what?! - huh? - it's being revised again. the co-pilot is on mapquest. - ( rock music playing ) - and tom is streaming meeting psych-up music

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in iran, a day of mourning and defiance. thousands risk their lives to honor those killed after the presidential election. this is video from one of today's massive protests that shows an armed policeman repeatedly striking a man in the head with a baton. the guy tries to fight back.

extraordinary images. there were reports security forces used tear gas on the crowds. one of the largest demonstrations was held here at a tehran cemetery. the woman whose death has become a symbol of the struggle. her name is neda. she was shot to death in the wake of the disputed election. her brutal killing broadcast around the world. caught on grainy amateur video. the image, an iconic image of the unrest. there are reports that two opposition leaders tried to address the masses at a ceremony today but riot police prevented them from speaking. extraordinary day. we have the director of iranian studies. he joins us now why was today's event so worrisome to the regime that they brutally cracked down like this? >> the regime has become increasingly worried about show of force of the opposition. the opposition demanded a silent demonstration at that site. they promised not to have any

speakers. they would recite versus and go home. the regime knew there would probably be a couple million people. they denied the permit. nevertheless, people risked life and limb and came out in thousands and they came out in three different sites. >> it is incredible, given the crackdowns, given all the violence we've seen, given the fact that there are untold numbers of people in prison and god knows how many people have been killed by this regime in this round, that still thousands of people came out today. >> i think it speaks to the degree of anger and frustration that people have and to the determination to see a change they have been fighting for for a very long time. they honestly see a regime that is also cracking. there are signs increasing signs. >> what are the signs that you see? >> well, first of all, there are cracks within the regime. many of the clerics are separating themselves from

mousavi. there are indications that some of the security forces are separating themselves, refusing to beat on people. we have reports of the regular police confronting these thugs. we have some of the most senior ayatollahs speaking very forcefully against this type of brutality against these prisons, against these secret prisons that have become known just in the last 48 hours. people feel the regime is weakened. there are tensions between mousavi and ahmadinejad. that was truly a remarkable last few days because ahmadinejad defied hominy on something that hominy clearly ordered him to do. >> what happens now? how do you see this playing out in the next weeks and months? >> i think there are people very actively trying to demonstrate on the day that ahmadinejad is

supposed to be sworn in. people are soliciting advice and ways of disturbing and disrupting that day. >> when is that supposed to be? >> in a week. exactly in one week. >> okay. >> and people are already planning for it. and i think what we are going to see is a continuation of this struggle. i think iran is in a purgatory. status quo. the old system has died but the new system is not powerful enough to be born. that's why this flux is both interesting and a constant shifting scenery. >> do we have an accurate number of how many people are imprisoned or lost their lives or simply disappeared? i think the regime put forward a figure of 130 people had been released. i'm not sure. do you have a figure? >> yes. we have a fairly accurate figure of at least 2,000 people arrested.

and at least 20 by some accounts, more than 100, killed in the torture or killed in street demonstrations. there are about 200 people who are missing. the secret prisons are popping up and the opposition is gathering names. we have something like 200 names of people who have simply disappeared and are probably in one of these frightening prisons. >> yes. god only knows what is happening to them. abbas milani, thank you for your time tonight. thank you, sir. >> thank you. an innocent man sent to prison for murder in america. a dog played a big part of the conviction. how could it happen and why it took so long for him to clear this name? details and whether this thing happens more than it might imagine. later, kid, drive and the cops. a 7-year-old boy leads coppen a chase.

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when we first heard about this next story, we had a hard time believing it was true. amazingly, it was. a whan who spent decades in prison for a murder he didn't commit was convicted in large part. as you'll see, it was all a lie. for tonight's "crime and punishment" report, here's randi kaye. >> reporter: bill dillon thought he would die in prison. he was 22 in 1981 when he was sentenced to life for a murder he didn't commit. >> the dog hit on my scent three times. that's what made me the suspect. they came back and got he. i never saw freedom again. >> reporter: the dog dillon is talking about, a german shepherd named harass ii. with its handler, john preston, the team was renowned as so-called scent-tracking specialists. >> it ends right here. >> reporter: they were hired to work hundreds of cases around the country. what do you remember about this dog? >> this was a big

basketball-headed german shepherd. it's not your average -- it was huge. >> reporter: the real killer's bloody t-shirt had been found. dna testing wasn't around back then. so investigators relied on the legendary nose of the big dog. the dog's owner testified at dillon's trial that the dog tracked the scent from the killer's t-shirt down this beach which is near the crime scene to all the way to these steps where the killer made his escape. the dog then supposedly connected that scent to bill dillon by signaling at a piece of paper that dillon had touched. the dog's owner claimed the dog tracked bill dillon to a room inside the courthouse. and like he had done so many times before, preston convinced the jury of his dog's miraculous abilities. >> he said the dog could track under water. he said the dog could get on top of boat and smell down under the water. >> reporter: experts say we consulted say no way, not possible. but in an interview with abc

news years ago, preston was asked if the dog was ever wrong. >> to my knowledge, no, i don't feel i've ever been wrong. >> reporter: in bill dillon's case in 1981, preston's wonder dog supposedly picked up dillon's scent more than eight days after the murder. and a hurricane had rolled through. was it possible to track a scent after all that? we asked this man, who trains police dogs. >> with that dog? no. the drive wasn't there. >> reporter: in another case, the dog supposedly was able to track a scent 8 1/2 years after a crime. possible? >> that dog? i doubt it. >> reporter: we asked our expert, tim maguire to watch this video of harass ii at work. at times, the dog urinates on evidence and acts like he's out for a walk. >> i want to see enthusiasm. i want to see excitement. i want to see not necessarily tension but him trying to establish a track. you want to see the dog working. >> reporter: did you see any

enthusiasm on this dog, harass ii? >> absolutely not. >> that's a good girl, come on. >> reporter: to see how quickly and aggressively, a well trained tracking dog works, i'll head into the woods. first, one of these dogs will smell my jeans, get my scent and see how quickly they can find me. unlike harass ii, this blood hound was motivated. pulling her handler the whole way. >> where did she go? that's a good girl. >> reporter: good girl, you found me. teleyears after dillon was convicted back in 1984, a judge became so suspicious of harass ii's abilities he set up his own test. the dog failed miserably. couldn't even follow a scent 100 feet. in fact, the judge concluded the dog could only successfully track when his handler had advance knowledge of the case so preston could lead the dog to the suspect or the evidence. do you think this was a conspiracy? >> any cases that were weak or

any cases they felt were not good enough to go to the jury, then they fed preston information, paid him good money to come in and lie. >> reporter: more than two decades later, florida state attorney told us they're not aware of any evidence of a conspiracy. eventually, preston and his dog were discredited, exposed as a fraud. but the state of florida never reviewed old cases. and no one told bill dillon who sat in jail another 20 years. until 2006. the following year, a dna test finally proved his dna did not match the dna of the killer's shirt. proving the dog was wrong. >> this is incredible. >> reporter: eight months ago, after nearly three decades behind bars, dillon walked out of prison a free man.

randi kaye, cnn, conova beach, florida. >> unbelievable. florida's innocence project is investigator other cases involved. preston died last rear. he was never charged with perjury, never punished. we're joined by jeffrey toobin. you say this kind of junk science happens much more than we think. >> you know, "csi" convinced us, especially jurors, that science can answer all sorts of questions and that the kind of tests that go on in courtrooms are very reliable. real science is established, things like ballistics testing, bite marks, arson investigations. a lot of that is bogus and there are people in prison because of it and it's really a scary thought. >> there have to be thousands of people in prison based on ballistics or a bite mark or an arson investigation. >> dna is the gold standard. dna is not junk science. it's real science. it's been tested. there are double-blind tests. most of these other tests have

never been subjected to real scientific scrutiny. in the national academy of sciences just issued a big report saying we need to look a lot more closely at all these technologies or we shouldn't let them in their courtroom. >> i think it was "the new yorker" where i read an article about ballistics. we have this idea that a bullet has a unique marking and can be pinpointed to an exact batch. and every bullet has a unique marking on it. >> grooves. >> it's not the case. >> someone made that up and no one ever -- now i'm remembering the article, no one studied it and looked back to prove it was true. when they did, they found out it's not true. >> the whole idea of scientific rigor, testing of the testing is something that's relatively new and hasn't been applied to these old technologies like bite marks. bite marks is a particularly notoriously unreliable one. but it can be persuasive. it's just not scientifically valid. >> it's scary to think how many people could be incarcerated because of that.

jeff toobin, thanks. espn reporter erin andrews videotaped in her hotel room naked. controversy out of control leading to a 9 1 call. interviewing the bachelorette. my question that seemed to surprise some people. our shot of the day.

a lot more stories for you on "360." a bulletin with erica hill. interesting observations from a senior adviser coming in iraq. in a memo, he says it is time for the u.s. to declare victory and go home. that memo from colonel timothy reed that despite other issues, iraqi forces can now stand up for themselves. a spokesperson for the commander in iraq says the colonel's memo does not reflect the official stance. it was written earlier this month. american troops began drawing done this month with a target of 50,000 remaining by next fall. caught on tape again. this time, no video. erin andrews calls 911 to complain about paparazzi outside her home. that tape was just released.

officers responded to the 911 call. no incident report was filed. andrews made headlines after it was revealed she had been secretly videotaped nude inside her hotel room. a car chase north of salt lake city, a little different from the kind we usually see in southern california. check out this driver when he gets out of the car. that little guy. >> yikes. >> he's 7. >> wow. >> apparently his reason for leading the cops on this chase, he didn't want to go to church. all right? come on. >> wow. >> he took the car and tried to get out of dodge. >> yikes. >> didn't quite work. >> unbelievable. let's do our "beat 360" winner now. the daily challenge to viewers to come up with a caption better than one we can come up with of a photo we put on the blog every day. is it friday yet? >> tomorrow is friday. >> president obama holds up a piece of half-eaten fruit. our staffer winner tonight is jack. you know what would make this taste even better?

a frosty bud light. >> you don't drink beer? that's okay. how about some fruit then? angela, congratulations, your beat 360 t-shirt is on the way. getting personal with the bachelorette. my awkward question, her awkward answer. (announcer) introducing new tums dual action. this tums goes to work in seconds and lasts for hours. all day or night. new tums dual action. bring it on. lower yourtums dual action. bad cholesterol but your good cholesterol and triglycerides are still out of line? then you may not be seeing the whole picture. ask your doctor about trilipix.

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i filled in for regis the last two mornings. it was great fun as always. the high point or low point, depending how you look at it, was chatting with the bachelorette. after weeks of televised lip-locking, she picked her man. paris and her new chosen fiance

appeared on the show. take a look. >> you're so adorable. >> thank you. >> kissing all the guys. what do you think about it? >> what do you think about it? >> at first i thought it was kind of weird. you get used to it. >> how many did you actually hook up with? how many did you actually sleep with? >> i'm shocked! i'm shocked! >> wait. you greased up this guy in oil on national tv. you're shocked by that question? >> it was aloe vera. >> i didn't really want to know. >> i kissed ten guys but only four with tongue. >> you know what, i just threw up in my mouth. >> great. >> i'll give you this, anderson cooper. let's be honest. you asked the question everybody wants to know, all of these dating shows. >> on that show, i don't watch it.

i watch the soups so they show the best moments. they show her greasing people up and then like volcanos erupt and you see the ocean moving. so it seems like this is going on a lot. >> let's be honest. this isn't the first -- she's not the first bachelorette or bachelor to be in the situation where you think there's a little more going on here than we're seeing. which is fine. i don't really want to see it. i don't know why we chose that sound effect, but great. >> i don't know what that sound effect means. lovely woman. i wish them boast the best. good luck to you. >> i don't think she should be surprised by the question. >> none of these people -- there's only one that actually got married and remains married, right? >> yes, tristan and ryan suter. why do i know that? >> he was a firefighter. she had been on the show previously. >> i love that you know things about this, too. the white house beer depp ploemsy. we'll have the latest on that. and jeep dealer, and get up to double

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