At about 03:12 EDT, a Cessna 210L on a Part 135 cargo flight struck a building approximately -mile from the approach end of runway 18L at the Tampa International Airport. The pilot was killed. The pilot had radioed the controller and questioned if he could expect runway 36R. The controller advised the pilot that he was following company traffic that was ahead and landing on runway 18L. The pilot advised the controller that the traffic was in sight. The controller cleared the flight to land on runway 18L; then a short time later, the pilot declared an emergency but did not state the nature of the emergency.