Witnesses described a frantic scene and close calls after an elderly driver plowed into dozens of hikers marching in a small Virginia mountain town's parade. Investigators were looking into whether the motorist had suffered a medical emergency before the accident.

A New York college student being held by an armed home intruder was shot and killed by a Nassau County police officer who had responded to a report of a home invasion at an off-campus home, police said Saturday.

The Powerball jackpot jumped to $550 million on Thursday -- the third largest lottery in history -- as dreamers in all but the seven states where the game isn't played snatched up tickets for the minuscule chance at a life on easy street.