here, blew up the tour bus on wednesday. the driver also died and more than 30 people were injured. officials say a second suspect is a possibility, but it hasn't been confirmed. to japan now, where the government is investigating reports that workers at the fukushima nuclear power plant tried to deceive the public. allegedly, they were told to use lead covers over the radiation detectors to hide unsafe radiation levels at the plant. this reportedly occurred december 1, nine months after the plant was damaged by a major earthquake and tsunami. let's go back now to colorado and don. >> all right, breanna, thank you. now we'll go over to ed laven r lavendera. so tell us about that explosion that set off at james' home, the apartment building just a little while ago, it was a controlled explosion, correct? >> yes, this was just a few hours ago. and the bomb technicians and the teams that have been here for more than 24 hours since they took james holmes into custody. it's that red brick building just over my shoulder. the streets have been cordoned off, many of the buildings around it have been evacuated. we know that here in the next couple of hours they will allow people in the surrounding apartments to come back. but what they did earlier when we heard that explosion, it was this technique to try to dismantle some of the trip wires that were connected to the devices they were finding inside of the apartment. apparently that worked to the extent it allowed them to dismantle some of the major pieces that they were the most concerned abt. it was in the words of the police chief, a very sophisticated setup inside that apartment and one that was designed to conflict more damage and pain and the police chief said if anyone walked into that apartment building or that apartment, opened up that door, they could have been seriously injured, if not killed. >> make no mistake, okay, this apartment was designed, i say, based on everything i've seen, to kill whoever entered it, okay? and who was most likely to enter that location after he planned and executed this horrific crime? it was going to be a police officer, okay? so make no mistake about it, what was going on there, and if you think we're angry, we sure as hell are angry. >> and don, over the last few hours since they did that explosion, they've been able to begin taking out a lot of that explosive material and the weapons that were inside that apartment. it was interesting a little while ago, there was eight police officers essentially in a motorcade, escorting a dump truck away. it will be taken elsewhere and analyzed and now the work of being able to get into that apartment and looking for other evidence that might provide more clues into how exactly all of this was pulled off, this massacre, and more clues into the mind of james holmes as they try to nail down a motive as to why this massacre occurred. don? >> so they removed large volumes of material. i'm wondering if this is why the police chief said that holmes received large deliveries recently. do they think it was bomb making material that he was having delivered? >> when you look at the wide arsenal that james holmes had obtained over the last few months, you talk about the weapons that were bought in various gun stores in the area in the last two or three months as well as the gear he wore. they include a lot of the material, the explosive material that was found inside the apartment. they say a lot of that was ordered. he ordered some 6,000 rounds of ammunition through online ways and had it delivered to him. so they're starting to piece together the timeline of how all of these different materials were gathered, where it came from and how it ended up in this apartment. >> ed lavendera, thank you. join us at the top of the hour for a special report on the colorado theater shooting. too often when stories like this happen, much of the attention is focused on the bad guy. we're going to try and focus our attention on the victims of this tragedy. join us tonight at 8:00 p.m. eastern right here on cnn. up next, a timeline of how the shooting massacre unfolded. plus, he was a doctoral student in the neuroscience program, top honors in college. what would allegedly make someone snap? we'll talk to a former fbi special agent. the greatest empires. then, some said, we lost our edge. well today, there's a new new york state. one that's working to attract businesses and create jobs. a place where innovation meets determination... and businesses lead the world. the new new york works for business. find out how it can work for yours at thenewny.com. syou know, i've helped a lot off people save a lot of money. but today...( sfx: loud noise of large metal object hitting the ground) things have been a little strange. 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[ yawning sound ] [ slap! slap! ] [ male announcer ] your favorite foods fighting you? fight back fast with tums. calcium rich tums goes to work in seconds. nothing works faster. ♪ tum tum tum tum tums let's get some expert insight now into the colorado theater shootings and the investigation now under way. tom fuentes is former assistant director at the fbi. tom, thanks for joining us. the fbi special agent here in aurora said just a little while ago that the device inside this suspect's apartment was sophisticated. we know he was a good student, but how does a person learn to make bombs like that? is it as simple as going on the internet? >> well, normally it's not that simple. it may be simple enough to acquire weapons, ammunition, tactical equipment, but to acquire the expertise and successfully assemble a sophisticated detonators, pressure switches, trip wires and other methods of setting off an explosive, that takes a lot of training. people study that and it's difficult to do that. so just to read that off the internet and do it sounds pretty difficult. and i think that's why that's the question of the hour for many investigators, who taught him how to do that? because they're going to know who else was taught how to do that besides him. >> yeah. when this first happened, i said this is like something a crime drama, csi or something like that that you see on television. for someone to booby trap an apartment. in all of your years in law enforcement, have you ever seen anything like that, especially to this magnitude? >> there was some case where is someone has tried to set up a secondary device so that when the first responders came, a second device detonated. but this is a little bit different. if he's watching these television shows or actually watching live real events, that's the first place the police and the authorities go is to the person's residence to try to obtain computer records and other material to determine who they were in contact with, whether they acted alone, whether they're part of a terrorist organization. so i think just watching other events would have taught him that once he's arrested, the police are going to go immediately to his apartment and start searching it and it's a logical step for him to assume if he wants to attack them to set up trip wires and booby traps. >> i want to ask you, what attracts someone to something like this? obviously some people like to ride motorcycles or what have you, some people are attracted to guns, they like to shoot off guns. but what attracts someone to -- and what makes someone, and i'm talking as your experience of working with the fbi with profilers, to want to blow up things like that? >> i think many of the behavioral scientist also say that often the person is looking for their 15 minutes of fame or that something has happened to them where maybe in his case when he dropped out of school, he finally has become a failure for the first time in his life. he's been an honor student and successful in everything he's done, suddenly now he's dropping out of that ph.d. program. we don't know if maybe he was rejected in love. maybe he was trying to establish a relationship and was turned down by someone and a combination of events may have played on his mind that he felt his life was over and he's going to go out in a blaze of glory and make himself famous. >> yeah. that was -- you bring up an interesting point. i thought about that. maybe he was spurned by a girl or something and it drives people to want to get revenge. what we haven't been hearing that much about is those missed signs of the suspect's behavior, like you heard in the gabby gifford's shooting and other massacres. is it too early into this investigation to hear about that? >> yes, it is too early on and they haven't had the ability to get to his computers and e-mail accounts and telephone records to determine who he's been in contact with, who he may have approached and have relationships or attempted relationships with. so that's one factor. but in some cases, the scientists will tell you that there are cases where there are no indications. that you have a person that, yeah, maybe not quite as average. especially someone as bright as him. an honor student with terrific grades and a ph.d. program that most people wouldn't dream of being able to get into. you know, somebody with that kind of back ground, his only encounter with law enforcement was to get a traffic ticket. so we don't have somebody out killing animals in his backyard or mistreating neighbors or exhibiting the bizarre behavior that we've seen in so many cases, but there are cases where a person seems normal and then suddenly goes off the track like he did. >> but tom, i have to say, hearing about what a terrific student he was and how smart he was, and i've been getting comments from people that it bothers them to hear that. it bothers me, as well. i have known some really smart people who are crazy, and as they always say, there's a thin line between genius and crazy. so what is the distinction here? why is that such a factor that he was a smart student, so therefore this is out of character. smart people can do odd things, as well. >> you're absolutely right. you can't question hitler as not being smart and look what he did. so that's not necessarily a mutually exclusive factor to be smart and a psychopath. but i'm talking about the other kind of bizarre behavior that we saw in so many other cases of individuals, the charles mansons and the jeffrey dahmers and the unabomber. we don't have that, at least that we know of, in his case. that may be determined in the future investigation. his computer records, hopefully, and i know the law enforcement investigators are going to put a lot of stock in getting that computer, being able to crack whatever pass codes he has on there and try to see, hopefully the information will be there, who has he been in contact with, what websites has he gone to, and also socially. he hasn't been on facebook or twitter. but this other website, he may be the person on there. that will be an important thing, because it might lead to other people that he was meeting with or exchanging messages with, that we just don't know about, that his parents wouldn't have known about or other friends. >> we can learn more about his mindset and character, as well. tom, thank you very much, sir. >> thank you, don. >> this is a black mark on our history, but there were brave people who stepped up, making their mark on history. one person is matt mcquinn. he shielded his girlfriend and his gift is recovering in a local hospital. straight ahead on cnn, firsthand accounts of how the mass shooting unfolded from eyewitnesss in the movie theater. and my interview with the victim of the shooting who is recovering in her hospital bed right now. brave knights! as you can clearly see from this attractive graph that our sales have increased by... sorry, my liege. honestly. our sales have increased by 20%. what is this mystical device i see before me? 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