would describe as copycat types of threats and we have been investigating those as you would expect with incredible care. as of this time, none of them have proven to be anything of significance. however, we always err on the side of caution and will continue as these threats come in, copycat or otherwise to focus on them and follow up on them. so with that, we are now going to be able to answer questions for any of us here at the podium. >> [ inaudible question ]. >> let me ask chief boyce to speak to that. it is the idea of affirming that, in fact, he was a solo player. just additional evidence that might be gathered -- did he have conversations with people that flesh out his motivation, what was going on in his mind in these last two hours of his life?