>> to date >> today we have ran down over a thousand leads. some of it has helped make a better profile of the madness of the suspect. but we still do not have a clear motive. >> sean: was the sheriff of clark county. there still is no motive on why he opened fired on the music festival on sunday. the real question is what turned him into a psychopath without conscious that would scream to him what he was planning on doing. and joining is now. it's not a phrase that we use lot, evil but over the centuries hundreds of millions of people murdered. and the killing fields of