Pacific Southwest Airlines Flight 1771Monday December 7, 1987
A fired USAir employee, David Burke, after leaving a goodbye message to friends, shot both pilots with a .44 Magnum pistol. While the aircraft was cruising at 22,000 feet over the central California coast, the cockpit crew heard two shots in the passenger cabin and radioed a frantic message to air traffic controllers: "There’s gunfire aboard." Moments later, the plane entered a high-speed nosedive and smashed onto the ground at 700 mph at 5,000 g's . Investigators sifting through the wreckage were able to retrieve the plane’s cockpit voice recorder, which subsequently revealed the sounds of a commotion in the cockpit, three more shots, the groan of the pilot or co-pilot, and then a final shot.