
A loss of oxygen is a leading theory for why an unresponsive business jet flew over the nation’s capital Sunday before it crashed in rural Virginia. But federal investigators are just beginning to look for answers, and an expert cautioned against jumping to conclusions.
The Cessna Citation took off from Elizabethton, Tennessee, headed for Long Island's MacArthur Airport. Once over Long Island, it turned around and headed south, flying a straight path over Washington, D.C. before crashing in Virginia, k illing the pilot and three passengers.