WaPo:

Montgomery County police received an urgent message at about 6:25 p.m. Saturday saying someone had been shot at Wolf Blitzer’s home in Bethesda. Officers streamed toward the CNN host’s residence near Congressional Country Club. They set up a perimeter.

But a dispatch supervisor was immediately skeptical, and a call to CNN confirmed it: The message was a fraud. Blitzer was fine — was, in fact, out of town. The authorities were dealing with another case of “SWATing,” in which someone jolts police into action with a fake distress call and technological trickery.