lance ulanoff, was it only a matter of time before someone live tweeted something so horrific? >> yeah, unfortunately, i think that's true. we are never without our technology. it's around us. it permeates our lives. we have powerful computers in our pocket, and we have been, you know, we are training our children from the youngest age the use social media, so it's something that comes very naturally to us, and what i noticed as part of this, this horrifying crime, is that the use of social media seemed to be kind of a natural act happening as i was doing these things. i did not feel that part of it didn't feel particularly premeditated. >> ifill: well, not only his act but that people instinctively shared what he put up online. >> it is, but it's funny, because i look at this guy, flanagan, and i think to myself, this is a person who committed a heinous crime, who was not in his right mind, and used social media in a way thatter the -- that terrifies me. the people who reshared what they saw, i understand the impulse because you see something, it's newsworthy, that is what we