get them out of there. >> we'll show you what they were up against, all the factors big and small that spelled the difference between life and death. also tonight as we continue to remember the victims, as they lived not just as they died. tonight we speak to the mother of rebecca wingo. a young woman with a whole life ahead of her. she mastered mandarin by the age 20, raised two daughters, working her way through school, training to work with troubled teenagers. she joins us later. we begin with breaking news. al package from the alleged shooter found in the news room. at the university of colorado. he mailed it days before the massacre, addressing it to one of his professors at the university colorado's campus in aurora. it arrived days before the shooting but was not discovered until monday afternoon when police found it in the mail room. they sent in the bomb squad, handled it by robot and x-rayed the parcel just in case. sources telling john miller who joins us now that the letter inside spoke of shooting people and included crude drawings of a gunman and his victims. do we know, john, from your sources, have you heard why this letter wasn't discovered sooner? >> well, we have a little conflict there. which is what we were told by law enforcement sources earlier in the day. and i have to say, this has been made extremely more difficult than it needs to be by a gag order that's been placed on all of the investigators and the district attorney who's not commenting. so getting information is like pulling teeth, even in an issue of public concern. but to update that, what we're told is it was mailed before the shooting, possibly days before the shooting. what the university is saying now is it arrived at their facilities services building on monday, july 23rd, that it was in the mix of mail there. and that when they found it, investigators were called. they looked at the package. they brought in the bomb squad. that caused the evacuation of the building right around 12:30. so it appears as pressure from this story builds, people are digging deeper for the data. the college is saying it got there monday. >> and do you know anything about the relationship between the accused shooter and this professor? i mean, was this somebody who taught him? was this somebody that he actually sought counseling from? >> if it's the professor that we believe it to be, it was somebody who taught a series of courses that he attended, including neurological disorders and ironically, schizophrenia. but we don't know what their relationship was. there are real questions there about there is information that he failed on an oral exam and that caused his withdrawal from the program. but we're far from knowing, was the professor the person who he failed the oral exam in front of? was it somebody else? again, because of the gag order it's a very difficult environment for reporting. >> and in terms of, what have you been able to find out in terms of what's in the notebook? >> well, very little. and there are questions that remain. we're told there's verbiage kind of a pent-up, was the phrase used, writings about shooting people. and that there were some very rudimentary images in there of a shooter and victims. but the real question, anderson, which i know is what we're all wondering is a, were was there anything in there that was specific to the date the batman show or something else. and b, is there anything that gives -- that sheds any light on motive. and right now, we can't learn that. >> john, stick around. i want to bring in james alan fox who we often consult with. professor, you say it's not unusual for mass murderers to actually reach out to people before actually committing a crime. >> right. they either reach out in either a threat or a call for help. but it's not unusual for them also to send letters, timed so they will be received after the shooting in an expnation for why they did what they did. there was a shooter at the university of iowa who sent letters to the media, time when his rampage was committed. university of arizona, same thing. frequently, mass murderers will send letters as explanations not necessarily as warnings or calls for he or threats. >> and what does it say to you that the suspect himself apparently tipped off police to the existence of some sort of a letter to the university? >> i'm sorry, that he did? >> yeah, there's reports that he had said to police that he had mailed something to the university. >> i can't really comment. i don't know exactly the context in which he said it. he -- you know, often times they're trying to intensify their persona by becoming larger than life. or they could just be telling the police some of the details that will not interfere with their defense. >> professor, you studied a lot of mass murderers, is there ever an explanation that satisfies people? that makes -- i don't want to say makes sense, but, you know, even if somebody puts into words why they did what they did, does it really make sense? >> well, frequently they do say exactly why they're doing what they do. often times, they identify who the villains are, who they're trying to get even with. specifically. but what people really want to know is enough information so that we can identify these individuals before they go on rampages. and we'll never get to that point. sure, i understand that people want information and maybe we can know more about this case and this person as a guide book. well, that's wishful thinking. if other people -- if you have in your life a son or a neighbor, a co-worker who's in trouble, who's suffering, you know it. you don't need a document, instruction manual based on the colorado shooter to tell you that this person needs help. >> john, you have actually talked with investigators who used special equipment to try to kind of recreate what occurred. what's the purpose of that? >> one of the things that's going on in this case is they have such a complex crime scene, with so many ballistic evidence, so many bodies, so many elements over -- just so much to collect, that they have actually held the crime scene longer. they want to get the bullet trajectory and all of this evidence in. and it's not a scene where one or two people were shot and it's kind of what they do with photographs and charts. so they've brought in some of the most sophisticated equipment. i talked with hal sherman and said what's the best stuff out there. he said, you know, the top of the line is aris 360, a canadian company that developed the software where you can combine this. so you take a 360 degree digital image with laser measurements that collect up to 30 million points of reference. then you lay the software over it and it allows you to recreate the scene to exact scale, introduce the victims where the witness statements tell you they were, put the gunman where they place the gunman. if they are using this weapon and the shell casings eject out to the right and fly eight or ten feet, you can extrapolate the gunman was eight feet to the left of the casings. then you can snap on a trajectory tool and using the witness statements and everything else, you can see where bullets were fired, where they ended up, and it's powerful in front of a jury. >> when you need that >> yeah, when you need it. what do you mean? >> this is an open and shut case when you look at it. it will not be hard for the prosecution to document and prove who the shooter was. that kind of technology is extremely useful when there's some doubt into what happened and who was responsible. >> i'll disagree with the professor on the following. which is, and i'll defer to him on the legal matters. but the crux is going to be if this was the person loling in court and seeming out of it or or whether he was a cold and calculated person who was able to put together this extraordinarily layered and complex plot. when you bring evidentiary tools like this that bring the crime scene back to life and you can adjust that new data into it without losing your scene, what you're able to demonstrate to a jury is he may say he was incapable of complex thought as he sits here today, but watch his actions, watch his tactical planning, watch his prowess. you actually can need it. >> go ahead, professor. >> but also, you have a crime that's timed perfectly to the premier of this movie. you have the level of planning involved. this was not a difficult case to show that someone is clear headed. i mean, i understand what you're saying. certainly we like to gather as much evidence as possible to present to the jury. but a case like this, the likelihood that a jury is going to return anything other than a guilty verdict is frankly slim. >> professor fox, we appreciate your time. >> we want to still presume he's innocent. >> of course. john miller, thanks for your reporting. follow me on facebook and twitter. coming up, a new perspective on the chaos inside and outside the theater that terrible night. emergency dispatch tapes participant a picture of what it was like for the victims and the first responders who were trying to help them. that's next. >>sorry. he wants you to know about priceline's new express deals. it's a faster way to get a great hotel deal without bidding. pick one with a pool, a gym, a great guest rating. >>and save big. >>thanks negotiator. wherever you are. ya, no. he's over here. >>in the refrigerator? see life in the best light. outdoors, or in. transitions® lenses automatically filter just the right amount of light. so you see everything the way it's meant to be seen. maybe even a little better. experience life well lit, ask for transitions adaptive lenses. visit your local walmart vision center today to discover how authentic transitions brand lenses enhance your vision. walmart. save money. live better. throughout our entire lives. ♪ one a day men's 50+ is a complete multi-vitamin designed for men's health concerns as we age. ♪ it has more of seven antioxidants to support cell health. that's one a day men's 50+ healthy advantage. welcome back. by now we've heard a lot about the rush to get out of the theater number nine including the mass shooting on friday in colorado. what happened later in area hospitals. but let's look at the vital moments in between that must have seemed like hours. tonight, what it was like for victims and first responders, much of it caught on emergency dispatch tapes. a report from randi kaye. >> reporter: aurora police arrive within three minutes. 5 1/2 minutes later, police make their first request for a ambulance. >> we need rescue inside the auditorium. multiple victims. >> copy. >> reporter: about two minutes later, first responders, this time for a child critical inside theater nine. >> i got a child, i need rescue at the back door of theater nine now. >> unable to wait longer, police start moving victims outside on their own. >> we've got three to seven hit. >> medics are again requested for the child police are worried about. >> again, p.d. is requesting medical personnel in theater nine, they have a child down and cannot evacuate. >> quick-thinking police start transporting those critically injured to hospitals in police cars. >> metro, do i have permission to transport victims by car? i've got a whole bunch of people shot out here and no rescue. >> yes, load them up, get them out of there. >> there's a first request for paramedics to treat the critically injured child. still no first responders. another plea for help. >> we have one we cannot move. get ambulance here as soon as possible. >> reporter: the fire department's first responders for far too long are blocked from getting to the critical by those less injured. a sea of wounded victims stream into the parking lot stops paramedics in their tracks, leaving the most critical patients untreated. the aurora fire captain wouldn't go on camera but told the "denver post" they were overwhelmed with patients. patients were running towards them. they were covered with blood. we cannot move past a patient to get to another patient. remember the child police say is in desperate need for a medic. another request for help goes out. >> p.d. is requesting emergency medical to the back of the theater. >> i copy that. i'm just trying to get things under control here. >> reporter: and another. >> sir, i apologize again. p.d. is asking for emergency medical. i believe they have another party that they can't evacuate which is a child. but ten parties down behind the theater is what they're saying. >> at this point, they're about 20 minutes into the shooting chaos. still, no rescue teams on site at theater nine. emma told anderson cooper about one victim she saw. wandering the parking lot untreated. >> he was asking for help and no one would stop to help him. i have to at least talk to him. but i should talk to him. i went over and he had been hit in the head. >> dispatch tapes also indicate a breakdown between police and fire. police clearly knew there were dozens shot, but a fire commander tells dispatch there are perhaps just 20 victims. >> do we have an approximate patient count at all? >> i'm just trying to sort it out. i'm hearing 10 here, 4 here. i'm going to go with 20 right now. let's just go with 20 people until we get this verified. >> reporter: 22 minutes into this, the rescue teams and fire department are still clearly overwhelmed. >> we have nine shot. if we can get any ambulances to stage, we can get them over to the ambos. >> okay, stand by, let me get this sorted out. i'll be with you just hang on. >> reporter: finally, nearly 24 minutes after shots fired, ambulances arrive at the theater's back door. >> we're rolling in now. >> really gives you a sense of the chaos there. randi joins us live from there. on the dispatch tapes, did they ever identify the child they were trying to save? >> reporter: no, anderson, they never i.d.ed her and said who she was, but we can only guess it was the 6-year-old who died in this theater shooting. there were no autopsy results released so it's hard to know what her injuries were and what maybe possibly if she could have been saved if they had reached her sooner. >> and any response from emergency responders about the delays in treatment? the police seem to be on the scene immediately. >> reporter: right. the police were there within minutes. we did get a statement just moments before we went on air from the city and from ems telling us that they also arrived within minutes, they started treating patients immediately. and that's true. we reported that in our story, we just heard that. but they don't identify which patients. it could have been the patients in the parking lot. it wasn't the patients critically injured at the theater. you have to wonder, why would the police be calling for ambulances over and over and over, anderson, for more than 20 minutes if they were staring at an ambulance right in front of them. they did say all patients were en route to the hospital within 55 minutes. >> so many responded so quickly, as we said. now, because we made a promise along with the people of aurora to remember the lives of the fallen, we want to remember tonight, rebecca wingo, mother of two. she was multitalented. multilingual. she devoured books in a single sitting. she was just 32 years old. her mother shirley joins us now. shirley, i'm so sorry for you loss and i can't even imagine what you're going through d what your family is going through. we've been trying to talk to as many family members, and we just want to hear about what rebecca is like. i heard so many people describe her in such glowing ways. what do you want people to know about rebecca? >> we want rebecca to be remembered for the loving, giving, brilliant soul that she was. we want her life in the military to be honored. she was in the air force for 11 years as a mandarin chinese linguist. she was going back to school. she wanted to work with foster children who were aging out f the system and had nowhere to go. she was just the best hearted person you would ever meet. and we also wanted to thank everyone who's helped us so much. and we wanted to clear up some confusion about the 529, that's fine, and also the fundme.com, auroraheroes.com website. and we want you to know, those funds are being used to bring in people from all over the world that love rebecca and so thank you so much for allowing us all to get together. >> you're joined by kate woodall. kait, you were rebecca's best friend. i heard one person say she was like a catalyst when she entered a room. she sort of lit up a room. >> she did. i met her at a music show. music was one of her favorite things. she was so vibrant. everyone was so drawn to her. we had so much in common. and we just became friends instantly. and we spent a lot of time together, going to shows. and she was always there for anyone who needed her, all the time. she was the most giving person and the most brilliant spirit i've ever met. >> she left behind two daughters. do they understand what's happened? >> the 9-year-old has a better grasp, but the 5-year-old, no. and we've been told by psychologists that they're too young to understand permanence. so even if the 9-year-old understands that mommy died, she doesn't -- she can't imagine that mommy is never coming back. ever. >> you've all been gathering with friends and family and just remembering rebecca and remembering all the good things about her. and i think it's so important to remember how somebody lived their life, not just how their life ended. so i guess surely -- >> absolutely in this case. >> shirley, is there anything else you want people to know about rebecca? >> she should be an example to everyone as the most amazing way to live a life. just go for it. and kindness all the time. >> yeah. >> she always showed kindness to everyone. she didn't have a mean bone in her body. if everyone lived that way, we would be a much better world. >> that's right. we're going to do it rebecca's way from now on. >> i know the prayer vigil on sunday, i've said this before, but i thought one of the most moving moments was when a speaker would read out somebody's name and the whole crowd would yell back, "we will remember you." i just want to leave you with that tonight. i think there's a lot of people -- and we will remember her. and i appreciate you coming on and talking about her. >> thank you. i wish you strength and peace. >> and thank everybody in the world for praying for us. thank you. >> we will remember. when we come back, injured survivors who are facing long recoveries in some cases, but very big hospital bills. some hope to report on that front next. it's already ingrained in our dna. during the golden opportunity sales event, get great values on some of our newest models. this is the pursuit of perfection. [ music plays, record skips ] hi, i'm new ensure clear. clear, huh? my nutritional standards are high. i'm not juice or fancy water, i'm different. i've got nine grams of protein. twist my lid. that's three times more than me! twenty-one vitamins and minerals and zero fat! hmmm. you'll bring a lot to the party. [ all ] yay! [ female announcer ] new ensure clear. nine grams protein. zero fat. twenty-one vitamins and minerals. in blueberry/pomegranate and peach. refreshing nutrition in charge! mine was earned off vietnam in 1968. over the south pacific in 1943. i got mine in iraq, 2003. usaa auto insurance is often handed down from generation to generation. because it offers a superior level of protection, and because usaa's commitment to serve the military, veterans and their families is without equal. begin your legacy, get an auto insurance quote. usaa. we know what it means to serve. his morning starts with arthritis pain. and two pills. afternoon's overhaul starts with more pain. more pills. triple checking hydraulics. the evening brings more pain. s