Another shooting of a alleged terrorist like the London shooting of Charles de Menezes????? Original Article Fatal shooting by air marshal 1st since post-9/11 enforcement Officials followed procedure, homeland spokesman says Amy Driscoll, Lesley Clark and Trenton Daniel Knight Ridder Newspapers Dec. 8, 2005 12:00 AM MIAMI - The shooting of a Florida man returning from a church trip to South America who said he had a bomb in his backpack was the first time an air marshal shot at a passenger or suspect since the government stepped up the presence of the law enforcement officers on planes after Sept. 11, 2001, according to Department of Homeland Security officials. The shooting took place within earshot of other horrified passengers, who reported hearing multiple shots fired. Rigoberto Alpizar, 44, a U.S. citizen from Maitland, Fla., died on the scene. He had arrived in Miami from Quito, Ecuador, earlier Wednesday with a woman officials believe was his wife. Just before the shooting, passengers reported seeing the man running wildly down the aisle of the plane with a woman in pursuit yelling that he was "sick." Passenger John McAlhany, in Seat 24-C, said the man "came running from the back." "He must have been doing 1,000 miles an hour," McAlhany said. "He knocked over stewardesses." McAlhany, a Sebastian, Fla., construction worker on his way home from a fishing trip in the Keys, noticed the man acting erratically during the boarding process. "When we got on the plane, he got off, then came back on with his wife," McAlhany said. "He didn't look stable." Law enforcement officers surrounded the plane after the shooting. Inside, McAlhany said passengers were ordered to crouch under their seats. He said that when he tried to pop up for a look, a flight attendant ordered him to get back down. He said the man apparently left a backpack on the plane, adding that the other passengers were treated roughly when law enforcement boarded the plane after the shooting. "They put a gun to the back of my head and said, 'Put your hands on the seat,' " he said. "That was more scary than anything else." He said the passengers were taken off the plane and confined to a conference room "with a lot of other people." The plane had arrived from Medellin, Colombia, and was to depart for Orlando at 2:18 p.m., but the flight, American 924, was subsequently canceled, according to the Orlando airport's Web site. "None of the other 113 passengers onboard were affected or were ever in any danger. This was an isolated incident," the airline said in a news release, adding that it would have no other comment. The marshals "followed procedure by the book," said Brian Doyle, a Department of Homeland Security spokesman. Alpizar's brother-in-law, Steven Buechner, said he was a native of Costa Rica and met Buechner's sister, Anne, when she was an exchange student there. Relatives said the couple had been married about two decades. Neighbors described Alpizar as a pleasant man who worked in a home-supply store. Associated Press contributed to this article.