 Right. It's still less than 24 hours since the shooting took place. So it really is the early hours. So there is a lot that's unknown. The first step was to confirm the identity of the gunman. That appears to be done. Investigators are going to be looking at whether this individual acted alone or was working with others. They'll look at the gun, how and where it was obtained. And, of course, they'll be looking for a potential motive. At a press conference around midnight last night, FBI Special Agent Kevin Rojek said investigators had not identified a motive yet.