CBS News

Published: Nov 04, 2013 11:33 PM EST

   
PENNSVILLE, N.J. (AP) - Court documents say the suspected gunman charged with killing a TSA officer at Los Angeles International Airport was dropped off at the terminal by his roommate.
    
In an affidavit supporting a search and seizure warrant for Paul Ciancia's cellphone, authorities say the roommate dropped off Ciancia on Friday morning after Ciancia entered his room unannounced and asked to be driven to LAX.
    
The roommate agreed and drove Ciancia in his black Hyundai Accent to Terminal 3. The attack began minutes later, leaving three others wounded, including two TSA officials.
    
The affidavit says Ciancia was concerned about the New World Order, a conspiracy theory that foresees a totalitarian one-world government.
    
The roommate told authorities he only learned of the shooting upon returning to the apartment.