let's bring in cnn legal analyst paul kellan, former new york city prosecutor. one of the immediate concerns for families, boy, our schools aren't safe. if it's not the guns, it's the box cutter. what's the reality of safety in schools. >> this is a terrifying, horrifying incident. i was quite surprised. i went to the statistics and looked. going back as far as 1927 there have only been 70 acts of random violence in middle, elementary and high schools in america that have resulted in fatalities. to put that in perspective, today there are 50 million students attending schools in america. statistically, your kids are probably pretty safe. this is an anomaly and as terrifying as it is, statistically it's rare. >> it eases anxiety in the general. in the specific, this case still so troubling. let's unpack it. the kid who did it, whatever the