He killed both pilots, thus the idiot couldn't take off.
He killed himself about an officer fired a 357 Mag through the portal window in the door that hit the high-jacker.
His intention in 1974 was to fly the jet into the Whitehouse!
I did not know about this, did you?
The hijacker was actually shot by a civilian who had the presence of mind, and the courage, to take the revolver from the dead rent-a-cop at the gate, and go after the crazed hijacker.