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They've been there, escorted in by different officers. they have to be careful where they're going in the school because it's an active crime scene. >> sure. and police officers are not trained as grief counselors. that's a very difficult specialty they're not trained for. so, they're taking these small groups of children in. they obviously want to steer them away from the places where there might be, you know, places where victims might have fallen and be sensitive about that. we talked about it last night until late last night, this was still an active scene where they were not convinced the...

You about a person who would put out these sort of decoy devices, to use your term? >> there definitely appears to be some copycat similarities here. looks like he took pieces from recent shootings, even going as far back as columbine, which was 19 years ago, hard to believe, last month. four components to a bomb. you need a power supply, like a battery, which he didn't. you had to have explosive, pten or c-4, which are much more difficult to get. he did not have those either. then you have to have an initiator, which could be a blasting cap, which he did not have. fragmentation, which appears...