 We're joined by Alan Lichtman, professor at American University. Sir, just a couple more questions, please. And we still don't know much about the shooter. We still don't know his motivations. But I'm wondering, what we uncover, will that change the way future generations is going to look back on this? Or is it really immaterial that the discord is so great that the shooter's motivations are immaterial? It's just that this has happened and sides are being more starkly designed than ever.