A passenger on Flight 924 gives his account of the shooting and says Rigoberto Alpizar never claimed to have a bomb By SIOBHAN MORRISSEY/MIAMI At least one passenger aboard American Airlines Flight 924 maintains the federal air marshals were a little too quick on the draw when they shot and killed Rigoberto Alpizar as he frantically attempted to run off the airplane shortly before take-off. "I don't think they needed to use deadly force with the guy," says John McAlhany, a 44-year-old construction worker from Sebastian, Fla. "He was getting off the plane." McAlhany also maintains that Alpizar never mentioned...