Pilot of DC Flyover Plane Crashed Due to Oxycontin Use, Friends Say.

Former business partners of the pilot who crashed a Cessna Citation in Virginia, killing four people, have alleged that he frequently neglected repairs and took Oxycontin while flying. The pilot, Jeff Hefner, was also accused of behaving threateningly, including pointing a gun at one of his partners. Hefner's lawyers denied the allegations, which they said were only emerging after his death. The cause of the crash is still unknown, but the plane had entered restricted airspace over Washington, DC, before two fighter jets were scrambled to investigate.