NTSB Releases Preliminary Reports on Deadly Plane Crashes in Virginia and Western New York.

The National Transportation Safety Board has released a preliminary report on the Cessna Citation 560 jet crash that killed four people in Virginia. The report shows the plane's movements leading up to the crash, including the pilot's departure from Melbourne International Airport, landing at Elizabethton Municipal Airport to pick up passengers, and flying to Long Island Mac Arthur Airport before turning around and heading south. The pilot did not respond to air traffic control and the plane crashed into a rural area just north of Montebello, Virginia. The cause of the crash is still unknown, but hypoxia is a leading theory. The plane had a cockpit voice recorder onboard, but it has not yet been found.