@cbsnews: 13-year-old Cyrianne McReynolds is grappling with the loss of her close friend, 11-year-old Alydia Livingston, who was among those killed in the midair collision of Flight 5342 and a Black Hawk chopper over the Potomac. Sisters Alydia and Everly Livingston, along with their parents Donna and Peter Livingston, died in the collision. 60 passengers and four crew members were on American Airlines Flight 5342, en route from Wichita, Kansas, and three soldiers were aboard the Black Hawk helicopter when they collided Wednesday night. #WashingtonDC #news #update