inhalation while making their way to the exits. According to James Burnett, who headed the National Transportation Safety Board (NTSB) investigation team, "I can't think of a recent accident where this many people have been up and out of their seats and didn't make it out." The captain was one of the few people who died of blunt force trauma, a blow to the head when the bulkhead collapsed as the aircraft collided with the firehouse. The first officer was rescued through the cockpit windows by some of the first firefighters to arrive on the accident scene. Shaw was found to have traces of phenobarbital in his blood. The Federal Aviation Administration prohibits use of the sedative before flying. The drug was prescribed for irritable bowel syndrome by Shaw's physicians, who said they had warned him not to use the medication while flying. Investigation First Officer David Kelly, who was flying the USAir 1493 during the accident leg, reported that he did not see SkyWest 5569 until he lowered the nose of his aircraft onto the runway after landing. Kelly also said that he applied the brakes, but did not have enough time for evasive action. Statements made by passengers who survived the crash were consistent with this testimony. Local controller Wascher, who cleared both aircraft to use the same runway, testified before the NTSB and accepted blame for causing the crash. She said she originally thought the landing USAir plane had been hit by a bomb, then "realized something went wrong... I went to the supervisor and I said, 'I think this (the SkyWest plane) is what USAir hit.'" She testified that rooftop lights in her line of sight caused glare in the tower, making seeing small planes difficult at the intersection where the SkyWest plane was positioned. Just before the accident, she confused the SkyWest plane with another commuter airliner that was on a taxiway near the end of the runway. Making matters more difficult, the ground radar at LAX was not working on the day of the accident. The NTSB's investigation of the crash revealed that the cockpit crew of the landing USAir jet could not see the commuter plane, which blended in with other airport lights. The NTSB cited LAX's procedures which placed much of the responsibility for runways on the local controllers, which directly led to the loss of situational awareness by the local controller.