>> thanks, ed. a former fbi special agent joins us this morning. thank you for joining us this morning. >> thank you. >> just to put this in context, just before this bombing, local police had reached out to whoever is responsible for this. we have police chief manley. here's what he put out as a call. >> we believe the recent explosive incidents that have occurred in the city of austin were meant to send a message. the person or persons understands what that message is and are responsible for constructing or delivering these devices. and we hope this person or persons is watching and will reach out to us before anyone else is injured or anyone else is killed. we want to understand what brought you to this point, and we want to listen to you. >> so in terms of how you conduct these investigations, what's the significance of that kind of plea. what does it tell us about where