live. we ve learned the identity of the third victim killed in the attack, lindsay liu. the school confirmed her identity earlier this afternoon. 8-year-old martin richard and 29-year-old krystle campbell were also killed in the horrible bombings. 178 people were injured and at least 100 have been released from area hospitals. i m joined by john king and cnn analyst. juliet, start with you. you are a former homeland security official. what are you hearing on the latest of the developments especially when it comes to this individual who was spotted on videotape? essentially what you said, you know, that the idea they would have a name that soon seemed way too quick for someone in custody unless he was well known to law enforcement already or was under surveillance. right now this is exactly how you would expect an investigation to unfold. there will now be trying to figure out what his name is but, jake, the key is what are they going to say at 5:00? we shouldn t second gu