Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

A gunman with a semi-automatic weapon shot three people, killing a federal security agent, at the Los Angeles airport Friday, officials said, and a suspect was in custody. Flights were disrupted nationwide. 
  
 Passengers evacuated from Terminal 1 wait outside Los Angeles International Airport on Friday Nov. 1, 2013. Shots were fired Friday at Los Angeles International Airport, prompting authorities to evacuate... (Associated Press) 
  
 Passengers evacuated from Terminal 1 wait outside Los Angeles International Airport on Friday Nov. 1, 2013. Shots were fired Friday at Los Angeles International Airport, prompting authorities to evacuate... (Associated Press) 
  
 A passenger walks with his luggage while leaving Los Angeles International Airport on Friday, Nov. 1, 2013. A suspected gunman was in custody Friday following a shooting at Los Angeles airport that left... (Associated Press) 
  
 Graphic locates LAX airport and terminal three where a shooting has injured multiple people and killed a TSA agent; 3c x 4 1/2 inches; 146 mm x 114 mm; (Associated Press) 
  
 Passengers walk with their luggage while leaving Los Angeles International Airport on Friday Nov. 1, 2013. Shots were fired Friday at Los Angeles International Airport, prompting authorities to evacuate... (Associated Press) 
  
 Police stand on high alert at Terminal 2 at Los Angeles International Airport on Friday, Nov. 1, 2013. Shots were fired Friday at Los Angeles International Airport, prompting authorities to evacuate a... (Associated Press) 
  
 Passengers evacuate the Los Angeles International Airport on Friday Nov. 1, 2013, after shots were fired there, prompting authorities to evacuate a terminal and stop flights headed for the city from taking... (Associated Press) 
  
 In this photo provided by John Forstrom, which has been authenticated based on its contents and other AP reporting, people wait at Gate 142 in Los Angeles International Airport, Friday, Nov. 1, 2013.... (Associated Press) 
  
 Airplanes sit on the tarmac at Los Angeles International Airport Friday, Nov. 1, 2013. Thousands of fliers were delayed Friday after a shooting in Terminal 3 closed parts of the airport for hours, prompting... (Associated Press) 
  
 Passengers evacuate the Los Angeles International Airport on Friday Nov. 1, 2013, in Los Angeles. Shots were fired at Los Angeles International Airport, prompting authorities to evacuate a terminal and... (Associated Press) 
  
 Passengers are directed outside Terminal 2 at Los Angeles International Airport on Friday Nov. 1, 2013, after shots were fired, prompting authorities to evacuate a terminal and stop flights headed for... (Associated Press) 
  
 A police officer directs traffic at the Los Angeles International Airport on Friday Nov. 1, 2013, after shots were fired in Terminal 3, prompting authorities to evacuate the terminal and stop flights... (Associated Press) 
  
 A police officer closes a road at the Los Angeles International Airport on Friday Nov. 1, 2013, after shots were reporter in Terminal 3, prompting authorities to evacuate the terminal and stop flights... (Associated Press) 
  
 Passengers walk with their luggage leaving the Los Angeles International Airport on Friday Nov. 1, 2013. A suspected gunman was in custody Friday following a shooting at Los Angeles airport that left... (Associated Press) 
  
 Los Angeles Police Chief Charlie Beck talks with other responders at Los Angeles International Airport on Friday Nov. 1, 2013. Shots were fired Friday at Los Angeles International Airport, prompting authorities... (Associated Press) 
  
 In this photo provided by Natalie Morin, people stand on the tarmac after being evacuated from Los Angeles International Airport, Friday, Nov. 1, 2013, in Los Angeles, after shots were fired at Terminal... (Associated Press) 
  
 In this aerial video frame grab provided by CBS-LA, fire and rescue personnel gather at Los Angeles International Airport on Friday Nov. 1, 2013. Shots were fired Friday at Los Angeles International Airport,... (Associated Press) 
  
 A passenger walks with her luggage while leaving the Los Angeles International Airport on Friday Nov. 1, 2013. A suspected gunman was in custody Friday following a shooting at Los Angeles airport that... (Associated Press) 
  
 Gasaya Ichihara, left, runs across the street with her daughter, Sachika Ichihara, as they try to make their flight to Japan at Los Angeles International Airport on Friday, Nov. 1, 2013. Thousands of... (Associated Press) 
  
 Los Angeles police Assistant Chief Earl Paysinger said the unidentified suspect apparently was injured following an exchange of gunfire with officers. 
  
 Officials told a press conference they saw no further threat Friday to the nation's third largest airport, which is a major gateway for flights to Asia, Australia and New Zealand. 
  
 Los Angeles Airport Police Chief Patrick Gannon said the gunman entered the terminal, pulled an assault rifle from a bag and began shooting at a screening checkpoint before entering the terminal. He said the lone shooter approached a security agent who was checking passenger documents and opened fire. 
  
 "As you can imagine, a large amount of chaos took place in this entire incident," Gannon said. Officers took the gunman into custody after a shootout. 
  
 Some passengers were evacuated, while others were locked down in airport restaurants and lounges. The airport was being swept as part of precautionary measures, and the bomb unit was on the scene. 
  
 Tim Kauffman, a spokesman for the American Federation of Government Employees in Washington, confirmed that a Transportation Security Administration officer was killed. He said the union's information came from their local officials in Los Angeles. 
  
 Ronald Reagan UCLA Medical Center said it received "three male victims from the LAX Airport shootings. One arrived in critical condition and two are listed in fair condition." 
  
 Interim Los Angeles Fire Chief Jim Featherstone said paramedics treated seven people at the scene, and six were taken to hospitals. 
  
 The gunshots were reported at Terminal 3, which is home to Virgin America and other airlines. 
  
 Air traffic was affected nationwide as the Federal Aviation Administration grounded flights that had not yet departed for LAX. 
  
 Witness Brian Keech told The Associated Press he heard "about a dozen gunshots" from inside a security gate at the terminal. 
  
 Ben Rosen said he heard gunfire erupt and saw people start running in all directions and others crouching. He lay on the ground. Police, with their guns drawn, shouted, "This is not a drill, hands up." 
  
 "It was scary I've never experienced anything like this before," Rosen said. 
  
 Airport security staff evacuated terminals, including onto to the tarmac. Hundreds of people remained gathered outside next to airplanes. 
  
 LAX air traffic controller Michael Foote said his colleagues in the control tower saw passengers spilling from the terminal onto the tarmac, "evacuating the building, getting out as fast as they could." 
  
 Flight tracking site FlightAware.com said that as of 11 a.m. local time, there were 12 flight cancelations and 132 flight delays in Los Angeles. ||||| LAX shooting: The latest 
  
  
  
 A gunman armed with a high-powered rifle opened fire at Los Angeles International Airport on Friday morning, killing a TSA agent and wounding several others, authorities said. 
  
 Authorities said the gunman fired at several locations in Terminal 3 before police shot him. LAX police did not reveal his condition. 
  
 [Updated at 1 p.m.: The Times earlier reported that the suspect was dead. But sources have since told the paper that he is in critical condition.] 
  
 The motive was unclear. A federal law enforcement official said that the gunman was a ticketed passenger entering the airport. 
  
 MORE: Eyewitness accounts of LAX shooting 
  
 Officials don’t believe the gunman has ever worked for TSA. Law enforcement sources had earlier told The Times that the gunman was a TSA employee. 
  
 Los Angeles Police Department anti-terrorism officials were on the scene, but sources said they believe the suspect acted alone and was not tied to any known terrorist group. 
  
 At a news conference, the Los Angeles Fire Department said it treated seven people at the scene and transported six to local hospitals. 
  
 Patrick Gannon, the LAX police chief, said the gunman entered Terminal 3 at 9:20 a.m. He pulled an assault rifle out of his bag and began firing. He moved into the screening area and continued shooting, Gannon said. He got past the checkpoint and moved further into the terminal. 
  
 Authorities tracked him down and shot him near a Burger King. 
  
 Vernon Cardenas, 45, of West Hollywood said he was at the airport on his way to Philadelphia when the shooting occurred. 
  
  
  
 “Sitting down, all of a sudden, literally just out of the blue, you hear a rumble in the background and a couple of seconds later, people are running at me,” said Cardenas, who does casting for the Fox television show "MasterChef." He described the scene as “mayhem,” with couples crying and parents who couldn’t find their children. 
  
 Brian Adamick, 43, said he was boarding a Spirit Airlines flight to Chicago at Gate 32 when a commotion erupted. 
  
 He said people were running through the terminal, away from a security area. Adamick said he went through an emergency exit downstairs onto the tarmac with several other passengers. 
  
 “While I was on the tarmac, I heard two gunshots from the same area where the people had been running and screaming,” he said. 
  
 A few minutes after he got outside, he said buses showed up to help evacuate passengers. He said he saw a wounded TSA agent board one of the buses. The man’s ankle was bloody: “it looked like it was straight out of the movies,” Adamick said. 
  
 The man told him, “I got shot, I’m fine.” He told passengers not to worry about him and that he had been shot before, Adamick said. 
  
 A White House official said President Obama had been informed of the incident: "The President has been briefed about the shooting at LAX. We will continue to stay in touch with our federal and local partners. The LAPD is leading the response and investigation. We urge citizens to listen to the authorities and follow directions from the first responders on site. The president will continue to receive briefings throughout the day.” 
  
 Tory Belleci of the television show "Mythbusters" tweeted: "Heard gun shots then everyone starting running for the door. Not sure if anyone was hurt. #LAX." 
  
 TV news footage showed dozens of officers swarming the airport. Images also showed a law enforcement officer being treated by paramedics. He appeared to be alert. Another officer had a bloody hand. 
  
 Earlier coverage 
  
 12:17 p.m.: A federal law enforcement official said that the gunman was a ticketed passenger entering the airport. Officials don’t believe the gunman has ever worked for TSA. Law enforcement sources had earlier told The Times the gunman was a TSA employee. 
  
 12:05 p.m.: FBI: "We do not see any threats" at LAX at this time. 
  
 12:03 p.m. LAPD Chief Charlie Beck: Police will not discuss nature of injuries, any details about the suspect. Case being handled by FBI. 
  
 12:02 p.m.: Seven people treated by LAFD. Six transported to hospitals. 
  
 12:01 p.m.: LAX says some flights diverted to Ontario. Latest updates on flight schedule can be found on Twitter. @lax_official. Flights will be significantly delayed. 
  
 12:00 p.m.: Gannon said "multiple victims" have been shot. He did not provide further details. 
  
 11:58 a.m.: Patrick Gannon, LAX police chief: Suspect pulled rifle out of bag, opened fire in several locations. Police tracked suspect down, shot him in Terminal 3. He was taken into custody. "At this point be believe this was a lone shooter," he said. 
  
 11:56 a.m.: Garcetti: People should stay away from LAX, even those with flights this afternoon. 
  
 11:55 a.m.: Garcetti: Situation at LAX now "static." 
  
 11:50 a.m. Los Angeles Mayor Eric Garcetti said on Twitter that planes at LAX are now departing from several terminals. But no new passengers are being allowed into LAX. 
  
 11:36 a.m.: Law enforcement sources told the Los Angeles Times that the gunman was a Transportation Security Administration employee at LAX. The gunman was killed by authorities after he opened fire Friday morning. He allegedly shot and killed a fellow TSA employee. 
  
 11:20 a.m. The gunman who opened fire at Los Angeles International Airport on Friday morning, killing a TSA agent, is dead, law enforcement sources told The Times. 
  
 No details about how he died were available. Law enforcement sources said investigators were trying to determine whether the gunman worked at LAX. 
  
 Los Angeles Police Department anti-terrorism officials were on the scene, but sources said they don't believe the suspect was tied to any known terrorist groups. 
  
 MORE: Eyewitness accounts of LAX shooting 
  
 11:10 a.m. A federal law enforcement official said that a TSA officer was shot and killed at a passenger screening checkpoint at Los Angeles International Airport. Three or four other TSA employees were injured in the shooting, the official said. ||||| Add a location to your Tweets 
  
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The LA Times reports that a TSA employee has been killed in today's shooting at a security checkpoint inside Los Angeles International Airport. Details about the shooter remain in flux. The latest reports suggest he was wounded by police in the ensuing shootout but remains alive and in custody. And the LAT quotes a federal official as saying he was a ticketed passenger, contradicting earlier reports that he was a TSA employee. Most accounts say two other TSA agents were hit by gunfire, though their conditions are unknown. Other people may have been injured running from the chaos. Police say the gunman entered Terminal 3 about 9:20am, pulled a high-powered rifle from a bag, and opened fire. Police quickly engaged him in a shootout. The FAA halted flights to the airport as a precaution, reports AP, but the mayor says the situation is now under control. One witness recalls the scene to CNN: "I heard a popping sound, and everybody was diving for cover. The TSA said there was a shooting in the terminal and evacuate the building." Also there was Fox Sports columnist Bill Reiter, who tweeted, "After the initial burst of gunfire and hiding, people started jumping over one another, jumping off chairs, pushing each other. Chaos & fear." (Update: The shooter has been identified as 23-year-old Paul Ciancia.)