'I was dodging bullets and trying to help people get out of the way,' Lea said.
'At first we thought it was firecrackers,' he said. 'Everyone started screaming and running. The shooter made his way down through baggage claim. He had what looked like a 9mm and emptied his entire clip. People were trying to run.'
Video from the airport Friday afternoon showed hundreds of passengers corralled together on the tarmac with emergency vehicles parked outside the terminal with lights flashing.
Around 1:45pm, law enforcemeent started the crowds off the tarmac, by bus and on foot.
Former White House press secretary to President George W. Bush, Ari Fleischer, was at the airport at the time of the shooting and tweeted about the chaos.
Just after 1pm, he wrote that 'shots have been fired. Everyone is running'.