ana, one last update for you. we know that four students now remain hospitalized, all in fair but stable condition. >> a little good news there, to hear they're recovering. that is a good sign. thank you, kaylee hartung, for that report. coming up, we are learning more about the white supremacist views of the killer who massacred 17 at this florida school, and that's leading to new questions about how our country reacts to his disturbing allegiances. we'll discuss next in the "cnn newsroom." when this bell rings.. ...it starts a chain reaction... ...that's heard throughout the connected business world. at&t network security helps protect business, from the largest financial markets to the smallest transactions, by sensing cyber-attacks in near real time and automatically deploying countermeasures. keeping the world of business connected and protected. that's the power of and.