aurora city hall at 6:30. >> jamie: at this point, we are learning more about the suspect in the massacre. investigators are saying that james holes planned the attack for months, until last month when he dropped out of medical school, the 24-year-old appeared to be a brilliant, aspiring skift with a very bright future. but those in law enforcement are saying that the typical lone gunman is one of the most difficult types of criminals to catch. he had no criminal record. you can obtain many of the weapons he had legally. most who know them say there is no sign that something is about to go terribly wrong. >> he was laid back, kept to himself. never really talked to anybody. the conversations we did were very short. i mean, he was somebody who you wouldn't look at twice walking down the street.