you're looking at shots right now on the t left of your screen of chicago, for officer paul bow wearbowersgeorgia for ce maddox. both were gunned down on the job last week and of course it occurs the same week we had this horrific school shooting in florida. reminders to certainty the fragileity of life and how anything like this can pop up at any moment. thomas hutchins is with us. if you'll indulge me, on this violence and the issue that it's more common here, you've heard all the groups that say it's definitely more common in the united states than it is elsewhere. obviously a lots of them are saying it's because of guns, others are saying it's our culture. what do you think? >> it has a lot to do with culture, neil. i think we all know that the lack of family involvement and structure istructure has been ar in a lot of what's gone on. we've seen the emergence of gangs and why kids join gangs, they find that's the only place to really get recognition for some of their achievements because they're not getting it at home and people aren't frankly investing in understanding what's importan