there's a second gunman out there. multiple shots were fired. we've heard from some witnesses who said perhaps as many as seven. as far as we know, there's just one gunman and that gunman is dead. but police are looking for or checking to see, actually, if there is a second gunman. that has placed this campus on lockdown. i want to bring in professor garcia at the university of texas. professor garcia thank you for joining us. let me start out by asking you if you heard, saw anything this morning when this took place? >> good morning. actually, no i didn't see anything. we first received word across campus via a text message alert system that the university has in place and that was approximately at 8:30 this morning. shortly thereafter we started hearing the campus sirens going off and that's the moment when we knew the campus was in lockdown. will you get a text message when the campus is no longer in