The plane appeared to be a small Cessna, but little else was clear. The sun had already set, making traditional visual surveillance difficult. So, perplexed, Shayne tweeted: "Anyone know who has been flying the light plane in circles above the city for the last few nights?"
That was 9:14 p.m. Seven minutes later came a startling reply. One of Shayne's nearly 600 followers tweeted back a screen shot of the Cessna 182T's exact flight path and also the registered owner of the plane: NG Research, based in Bristow, Va.
