at about 10:00 local time, he went into oikos university and began shooting indiscriminately. police describe what is it looked like when they got here. take a look. >> when we got there, officers found several victims throughout the classroom, throughout the building. there were several people hiding in locked buildings, locked doors, behind desks, as you can imagine very frightened, very scared. some of them were injured, we had to rescue them out. we had to force our way into a number of rooms because they were locked behind doors. >> reporter: after the shooting, the suspect fled to a grocery store and confessed his crime to a supermarket worker. he was arrested in the parking lot of the grocery store a short time later. police do not have a motive, but, of course, the investigation continues. we know that seven people are dead, three more people are injured, they're at a local hospital, suffering from nonlife threatening injuries. wolf? >> dan simon, thanks very much. also tonight, keeping them honest. a fresh look at two key pieces of evidence in the trayvon martin killing. newly enhanced videotape and newly analyzed audio. one lending credence to george zimmerman's claim of self-defense. the other, perhaps, undermining a key part of his story that he cried out for help before fatally shooting the unarmed teen. by now you're probably familiar with that grainy surveillance footage of george zimmerman being brought in for questioning at the sanford, florida police department. tonight we've seen a higher resolution version of it and enhanced it even further so you can better decide how seriously injured george zimmerman was. reports of the new york daily news and local media say sanford police initially called for a second ambulance. presumably to take him to the hospital. it was later canceled. also, remember this. zimmerman claims that trayvon martin sucker punched him, then repeatedly slammed his head into the ground or pavement. police say he was treated at the scene for injuries to his nose and head. however, it was hard to tell much if anything from the original videotapes about the extent of his injuries, or whether they were consistent with the story he tells. the newly enhanced video which you'll see in a moment may shed new light on that question. then there's the audio evidence. the 911 call. one of many that night on which you hear someone cry out three times for help. the question has always been, who is it? first, zimmerman's father on local affiliate, wofl. >> all of our family, everyone i know who knows george knows that is george screaming. there's no doubt in anyone's mind. >> you and i talked before, without a doubt that is trayvon's voice on the 911 call calling for help. there is now an eyewitness who says, who has been interviewed who says that he saw george zimmerman crying out for help. >> people can say anything they want to. i just personally don't believe it. i know that it was my son that was crying out for help. so right now, we are hearing a lot of speculation and people just want to say whatever they want. >> so who is right? no one can say with absolute certainty. today on starting point with soledad o'brien, a top forensics expert says the evidence points to martin, not zimmerman. >> we have the tape of zimmerman. we have the tape of the screams. and then we can start to comparison. and basically, it will do this comparison, if you can see the screen now. and it will give me some false rejection rates. some false exception rates. and a likelihood ratio, okay. and this gray dot over here designates the very lower end of the stale which in essence translates as it is not him. >> two pieces of evidence, audio and video. we'll talk about both shortly. we'll also be joined by the family lawyer who wrote to the justice department civil rights division, questioning whether the decision tonight charge george zimmerman was made fairly and impartially. we respectfully request, he writes, that the united states department of justice investigate the circumstances surrounding this meeting between chief bill lee and state attorney norm wolfinger in which they disregarded the lead homicide investigator's recommendation to arrest george zimmerman for manslaughter. late today, mr. wolfinger issued a statement, and i'm quoting saying he is outraged by the outright lies contained in the crump letter. as always, a lot of ground to cover tonight. we begin with the videotape. how it was enhanced and what it may show. here again is the tape as you've been seeing it for the last several days. it is grainy and certainly not easy to make out details. now, here is the higher resolution version. the sanford police department recently posted to their website. you can see it is much sharper, much easier to make out detail. in addition to what you see here, we've also taken the tape into an edit bay and made some enhancements. details literally from deborah ferrick. >> so i'm here with jason, one of our great editors at cnn. and we'll show you a surveillance tape but in a very different way. this is the night of the shooting. let's take a look at this and play it down. and you can see george zimmerman. he is sort of talking to police. the police officer right there looks at the back of his head to see if he can see anything. so take a look at this. this is something you actually do see what appears to be some sort of a bump. >> yeah, there's a few things i can do to enhance it. i'm going to put a little contrast on it now to see if we can bring this out a little bit more. throw in another color correction tool on it. i'm going to oversaturate it too, so you can see the reds. >> that's interesting. it definitely looks like something's popping out. >> we'll raise it. you see his jacket getting redder and the area getting redder. and i'm growing to lighten it up a little bit. raise the whites. there you go. >> again, tonight, nothing conclusive there but a fresh look at two key pieces of evidence. videotape showing george zimmerman's head injury. audio tapes suggesting he was not the voice on the 911 tape crying out for help. joining us now is benjamin crump, thanks very much for coming in. this letter that i mentioned earlier, you sent it to the justice department asking them to look into why the sanford police chief met with state attorney norm wolfinger on the night of the shooting and why they allegedly chose to ignore a local detective's inclination to arrest george zimmerman. mr. wolfinger issued a statement accusing you directly of lying. it reads in part. let me read it to our viewers. i am outraged by the outright lies contained in the letter by benjamin crump. no such meeting or communication occurred. i have been encouraging those spreading the irresponsible rhetoric to stop and allow state attorney angela corey to do her work. that's a quote. he is flat out calling you a liar. we would love to get your response. >> yes. on behalf of the family, we're outraged at his for whatever reason, refusal to arrest george zimmerman for killing their son. and it took our letter to finally get him to comment on why george zimmerman has not been arrested. we hear all these things from the media. we don't get anything from his office or the police department. so these folks have been left out in the cold when it's them who should get all the information about why mr. zimmerman is still free for killing their son. and we'll keep writing letters and asking people to investigate anything that is suspicious. they deserve answers. this family only wants answers. >> mr. crump, have you seen the affidavit that your letter hinges upon? in other words, can you prove your claim? >> no, and when we told the state -- the special prosecutor for the department of justice, we're hearing all these things, mr. wolfinger knew that this was out in the media. the family asked these questions. why were they overruled? why is george zimmerman free? who made this decision? this is something they've asked repeatedly from the beginning of this thing. why was not he arrested? that's at the crux of this matter here. >> if there was a disagreement between the investigator and the prosecutor who thought there wasn't enough evidence to charge zimmerman, what does that tell you? >> what it really tells us, this investigator who's on the scene, he makes a decision where he recommends manslaughter. and then he is the person who's evaluating his statement, evaluated the evidence, observed it. why would you overrule him or reject his notion if it is said that zimmerman's claim isn't credible. and remember, wolf, let's be absolutely certain. nobody is saying that he can't make a self-defense claim in a court of law. all we're saying is he should have been arrested. if that was trayvon martin who was accused of pulling the trigger, he would have been arrested right there on the spot. we only want equal justice and fair and impartial to be a part of that across the board. and that means simply stated for again, a cry, and a demand that he be arrested. and we will have a court of law decide his innocence or guilt. >> very briefly, there is new evidence, enhanced surveillance video that shows what could be an injury to the back of his head. could this video support his claim that he was in an altercation with trayvon martin? >> again, it has to be at a court of law. is that enough to justify deadly you have to look at it -- is that enough to justify deadly use of force to kill an unarmed teen? and more importantly, the crux of the matter that we keep harping on. if he does not get out of that car, if he does what a neighborhood watch person is supposed to do, report it to the proper authorities and let them deal with this matter. then trayvon martin is here living and breathing and we're not dealing with this, his parents saying why is my son in the ground and nobody has been arrested for killing him? >> benjamin crump, as usual, thank you very much for joining us. >> thank you, sir. >> as always, more on this at cnn.com. let us know what you think. we're on facebook and google plus. you can follow me on twitter @wolfblitzercnn. more on bringing women out to vote. and how big a gender gap there is in some key swing states when it comes to a race against president obama. tdd# 1-800-345-2550 let's talk about fees. tdd# 1-800-345-2550 there are atm fees. tdd# 1-800-345-2550 account service fees. tdd# 1-800-345-2550 and the most dreaded fees of all, hidden fees. tdd# 1-800-345-2550 at charles schwab, you won't pay fees on top of fees. tdd# 1-800-345-2550 no monthly account service fees. tdd# 1-800-345-2550 no hidden fees. tdd# 1-800-345-2550 and we rebate every atm fee. tdd# 1-800-345-2550 so talk to chuck tdd# 1-800-345-2550 because when it comes to talking, there is no fee. holding down the fort while you're out catching a movie. [ growls ] lucky for me, your friends showed up with this awesome bone. hey! you guys are great. and if you got your home insurance where you got your cut rate car insurance, it might not replace all this. [ electricity crackling ] [ gasping ] so get allstate. you could save money and be better protected from mayhem like me. [ dennis ] dollar for dollar, nobody protects you from mayhem like allstate. the sleep number bed. the magic of this bed is that you're sleeping on something that conforms to your individual shape. wow! that feels really good. you can adjust it to whatever your needs are. so whatever you feel like, the sleep number bed's going to provide it for you. now, sleep number redefines memory foam, combining coolfit gel foam with sleep number adjustability! during our white sale, receive $400 in free bedding. only at the sleep number store, where queen mattresses start at just $699. raw politics tonight. the gender gap. a new polling from usa today and gallup shows president obama beating mitt romney by nine points in swing states and women. the reason why. take a look at the gender breakdown. among men, romney has the one-point lead. among women, an 18-point defense significance. he and the republican party apparently paying a price for supporting policies and making statements a lot of women simply don't like. to counter that, governor romney is putting his wife ann romney front and center with her take on what matters to women. >> do you know what women care about? this is what i love. women care about jobs. >> she talks to women. they're concerned about the jobs their kids are going to get. >> women are talking about jobs. women care about the economy. they care about their children and they care about the debt. >> she is going across the country and talking with women. you've got moms that are driving their kids to school. >> women are talking about deficit spending. >> women, women, women. >> thank you, women. >> and romney trying to bring women home to the party and to her husband's campaign. she is also trying to humanize him. >> well, you know, i guess we better unzip him and let the real mitt romney out. because he is not, it is so funny to me that is the perception. he is funny, engaging, he is witty. always playing jokes. he's -- when i met him when i was a teenager, he was the life of the party. that's why i like getting out there. it's being able to let people see the other side of mitt. >> more now on the woman who sees the other side of mitt romney from randi kaye. >> in the romney household, a number of titles. mother and grandmother and trusted adviser. she is also the great protector of all things romney. >> the last person on earth you would want to cross would be ann romney. if you go after one of her kids or after her husband, she is going to be there. >> ron scott has known mitt romney since 1985 and just wrote a book about him. he says ann is no pushover. >> she got into a tiff with one of her teenage boys, and he was being a smart mouth and she was trying to get away to go to the cape for the weekend. and he was going back and forth with her. finally she got in the car and slammed the door and said see you later. she took off and left him in the driveway. >> scott said ann even stood up to her mother who voiced concern when ann and mitt started having so many children. >> her mom said, gee, you're overpopulating the earth. and ann at one point, she said if you want to see your grandsons on a regular basis, you need to knock this stuff off. >> ann romney humanizes her husband calling him the most disobedient child. she shares his love of chocolate milk and his obsession with peanut butter and of course, tales of romance. >> we are high school sweet hearts and we still are sweethearts, which is nice. are we have five wonderful sons, 16 grandchildren. >> like mitt, ann grew up wealthy in michigan will her father manufactured auto parts. she and mitt fell in love in high school. mitt proposed when ann was just 15. they married while in college at bringing ham young university a mormon school in utah. ann had converted to mormonism in high school. their love affair has been part of the campaign rhetoric, dating back to this ad for mitt's 2002 senate run. simply titled, ann. >> our first real date. >> night of senior prom. >> mitt pulls up to pick me up in a goofy looking car. >> it was an amc marlin. >> he was a little embarrassed about it. >> it was awful. >> it was very romantic. >> mitt admits without ann, as he bit lost. >> if i'm away from ann for longer than a week or association i get a little off course. she has to bring me back and moderate me back a bit. >> still, ann may not be perfect. in 1994 during mitt's senate campaign, she told the "boston globe," money was so tight in college, they considered selling stock from their portfolio. critics painted her as out of touch. >> everybody that read that gasped. >> ann's greatest challenge had nothing to do with politics. in 1998 she learned she had multiple sclerosis. >> it was a devastating thing in my life. it was very tough. i went from being a very active, involved, and hands-on mom to hardly being able to take care of myself. >> to feel better, she turned to holistic therapies and horseback riding. but her battle didn't end there. in 2008, she was diagnosed with breast cancer. whether it is cancer or the campaign trail, ann romney is a fighter. she has beaten two life threatening diseases, but she knows with the gop nomination still up for grabs, there are many more battles ahead. cnn, new york. randi kaye, cnn new york. >> a short time ago i spoke to two members of our political panel, republican strategist mary matlin and maria cardona. how worried should the romney campaign be with this huge swing with women voters and how crucial with ann romney be in trying to win them over? >> well, as we talk about often, the number in the primary are not determining or predictive for the general election. we always need to be concerned about women and the poll numbers i'm looking at now, resurgent republic poll numbers show that women asp as men as much as anybody else are concerned about the jobs numbers, the unemployment, the underemployment and the lack of jobs that are family sustaining. they'll vote in the end on the same concerns that everybody else does. they'll be aired out in the fall. >> maria, describing ann romney in politico today called her the romney democrats fear most. is that true? how big of an asset do you think she is? >> she is a tremendous asset. no question about that. i don't think at this point, fear would be a word that i would describe any democrats have about anybody in the romney campaign right now. it will be a tough election. there's no question about that. and ann romney is very charming. she is articulate. she gives the robotic mitt romney a human factor which he desperately needs. but to mary's point, she's not on the ballot. and as charming and articulate as she is going to be, it will be mitt romney's policies which right now and all the polls showing, this independent women do see those as anti-woman. and that's why 53% of the electorate right now is not supporting mitt romney. and that is not the kind of chasm that you need going into the general election. with 53% of the electorate. that's not a trend that will be easy to make up. >> you do know the gender gap was one of the biggest factors behind the obama win back in 2008. and as of right now, that gap is even bigger this time around. here's the question. can republicans win the white house again without reversing this trend? >> when mitt romney is running against barack obama and he is not being attacked every day in his own party and every day by this president who has declared that he is going after women in the superficial way, and talking about things as if they have no other concern in their mind about where they're getting their next box of birth control. it is not a trend. we'll reverse these numbers and women will vote the way they'll vote on their pocket books. they'll vote on their gas tank. they'll vote on their grocery bags like everybody else. >> a lot of crowing from democrats about these latest poll numbers that i mentioned earlier. but this sort of sudden spike, as you well know, can't necessarily be relied on, can it? it can certainly evaporate as quickly as it appeared. >> no question about that. yes, while these numbers make us all feel happy, we feel happy for one day, two days. but the election is not today, or tomorrow or next week. it is absolutely true that we cannot sleep on our laurels, we need to be focused. and this president is very focused on making sure he continues to talk to women and frankly all voters, about how he is continuing to create jobs, create economic growth, and to focus on the issues that middle class families are really concerned about. this, i think, is where mitt romney is also running into trouble. mary is right. women vote on the issues that everyone else votes on, that is economic grow