It could be coincidence.
It could be information gained through terrrorist network.
It could also be information gained from his FBI sources ...which leads right back to the current controversy on what did the FBI know and when did they know it. The FBI agent that was arrested was out of New Mexico. That may be in the same division as the Arizona branch.
http://www.thesandiegochannel.com/sand/news/stories/news-147989820020524-150536.html
The artist sketch didn't look much like him