 He will address the nation tonight at 8 p.m. Eastern time. CBS News crime producer Ann Schechter with the latest on the investigation into the suspect. CBS News has spoken to some former classmates of his who describe him as a loner, say that he was bullied and that he would wear hunting gear to class. So we're starting to kind of paint a picture. And what investigators are doing now is they're creating a profile, looking for motive and also creating a timeline.