AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREBlues bury Kings early with four first-period goals 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! MIAMI (AP) – An agitated passenger who claimed to have a bomb in his backpack was shot and killed by a federal air marshal Wednesday after he bolted frantically from a jetliner that was boarding for takeoff, officials said. No bomb was found. It was the first time since the Sept. 11 attacks that an air marshal had shot at anyone, Homeland Security Department spokesman Brian Doyle said. Another federal official said there was no apparent link to terrorism. According to a witness, the passenger ran down the aisle of the Boeing 757, flailing his arms, while his wife tried to explain that he was mentally ill and had not taken his medication. The passenger, identified as Rigoberto Alpizar, “uttered threatening words that included a sentence to the effect that he had a bomb,” said James E. Bauer, agent in charge of the Federal Air Marshals field office in Miami. He was confronted by air marshals but ran off the aircraft. Doyle said the marshals went after him and ordered him to get down on the ground, but he did not comply and was shot when he apparently reached into the bag. Alpizar, a 44-year-old U.S. citizen, was gunned down on a jetway outside the American Airlines plane, which was parked at a gate at Miami International Airport. Alpizar had arrived earlier in the day from Quito, Ecuador, and Flight 924 was going to Orlando, near his home in Maitland. Relatives said Alpizar and his wife had been on a working vacation in Peru. A neighbor who said he had been asked to watch the couple’s home described the vacation as a missionary trip. “We’re all still in shock. We’re just speechless,” a sister-in-law, Kelley Buechner, said by telephone from her home in Milwaukee. The shooting occurred shortly after 2 p.m. as Flight 924 was about to take off for Orlando with the man and 119 other passengers and crew, American spokesman Tim Wagner said. After the shooting, investigators spread passengers’ bags on the tarmac and let dogs sniff them for explosives, and bomb squad members blew up at least two bags. No bomb was found, Bauer said. He said there was no reason to believe there was any connection to terrorists. The concourse where the shooting took place was shut down for a half-hour, but the rest of the airport continued operating, officials said. Federal officials declined to say how many times Alpizar was shot, or reveal how many air marshals were on the plane. Mary Gardner, a passenger aboard the Orlando-bound flight, told WTVJ-TV in Miami that the man ran down the aisle from the rear of the plane. “He was frantic, his arms flailing in the air,” she said. She said a woman followed, shouting, “My husband! My husband!” Mike Irizarry, a passenger shown on CNN, added that Alpizar “just kept saying, `I got to get off, I got to get off’ and then he ran off the plane.” Gardner said she heard the woman say her husband was bipolar – a mental illness also known as manic-depression – and had not had his medication. Bauer said he could not say whether Alpizar was ill. Gardner said four to five shots were fired. She could not see the shooting. Afterward, police boarded the plane and told the passengers to put their hands on their heads, Gardner said. “It was quite scary,” she told the TV station via a cell phone. “They wouldn’t let you move. They wouldn’t let you get anything out of your bag.” Lucy Argote, 15, said police kept passengers on the plane for about an hour, then eventually told them to leave with their hands behind their backs – and without taking any of their possessions. Argote, from Codazi, Colombia, did not have her passport when she and other passengers arrived in Orlando late Wednesday, about seven hours behind schedule. Argote said Alpizar got up from his seat and ran toward the plane’s door, with his wife yelling in Spanish. “Officers told him to stop and he said no. … He was running like a crazy man,” she said. Passenger Mike Deshears, who works for the Marriott vacation club in Orlando area, said that as the couple ran, “a gentleman in a Hawaiian shirt immediately followed. … It was a matter of seconds before there was six pops.” The wife returned to get her bag and was profusely apologetic, he said. “She said it was her fault that he was bipolar. He was sick and she had convinced him to get on the plane.” 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 the paint department of a home-supply store and spent his spare time tending to the lawn of his ranch-style house. Many found it incomprehensible that he could have made a bomb threat. “He was a nice guy, always smiling, always talkative,” Louis Gunther said. “Everybody is talking about a guy I know nothing about.” Alex McLeod, 16, who lives three houses from the Alpizars, said: “This whole neighborhood is shocked. … Totally uncharacteristic of the guy.” No one answered the door Wednesday evening at the Alpizars’ modest, four-bedroom house on a tree-lined street in suburban Orlando. A car was in the driveway, and television crews milled about. There were only 33 air marshals at the time of the Sept. 11 attacks. The Bush administration hired thousands more afterward, but the exact number is classified. Marshals fly undercover, and which planes they’re on is a closely guarded secret. Until Wednesday, no marshal had fired a weapon, though they had been involved in scores of incidents. Rep. John Mica, R-Fla., who as chairman of the House aviation subcommittee was involved in the expansion of the air marshal service, called Wednesday’s shooting “an unfortunate incident.” “Everyone’s on edge because we view the biggest threat as explosives, or bombs,” he said. Associated Press Writers Mark Sherman and Lara Jakes Jordan in Washington contributed to this report.