 It appears that he acted alone. The FBI says that it has interviewed nearly 100 people so far in this investigation. It's finished searching Crooks' home and vehicle and now has access to his phone. The hope is that all of that investigative activity may help fill in some of the gaps that we have right now and provide an answer, of course, to the question of motive. Right, right. I mean, it seems like there's just a lot that we don't know. What can we say? What do we know about the alleged shooter? What kind of picture is emerging of him?