Detailed text transcripts for TV channel - CNN - 20180216:06:34:00
Someone in a similar situation commit the sim kind of crime. you can't guarantee 100% it won't happen again. >> we have talked about this a lot. that law enforcement has learned an awful lot since columbine. they changed tactics completely. we saw the result of that here. the first units on the scene go in immediately and deal with the wounded and get everybody out. what more, though, can change? what more can get better? >> we were walking around the location. and talking to parents. they were so the praise for the quick response and the heroism of the police officers that showed up. and to y...