The shooting has stirred questions about a recent repositioning of airport police officers around LAX.
Airport police Chief Patrick Gannon said in the past year, he decided to move officers from behind a TSA security checkpoint to in front of it, where they also took on "greater responsibilities" such as monitoring both the arrival and departure floors of the terminal.
"The threat ... at the airport does not exist behind security at that podium, the threat exists from the curbline on," Gannon said. "So ... we have our people stationed throughout the airport."
He said the nearest police officer to the site of Friday's initial shooting "was just moved to the front part of the airport."
Gannon acknowledged the trade-off of having the officers roam a larger area rather than sit at a checkpoint.
"So are they going to be in the exact same (place), exactly where I'd hoped they would be? No," he said. "It didn't happen in this particular case."
TSA Administrator John Pistole said the shooting has prompted a review of security protocol with partner agencies.
Congressman speaks out
McCaul said better coordination between TSA officers and local law enforcement at the nation's airports could help improve security at those locations.
"I talked to the director of TSA, John Pistole, yesterday. We talked about a review of the policies at airports. Every airport is a little bit different, but the coordination with the local police is key because remember, TSA officers are not armed," he said.
"I think it's important we have the local law enforcement really at different points at the airport to protect not only the perimeter, but also things that could happen through security checkpoint," he said.
He also talked about the importance of using special TSA VIPR teams, short for Visible Intermodal Prevention and Response. The teams are tasked with performing random, unpredictable baggage and security checks at transportation venues.
McCaul said Pistole wants to further the use of such teams at airports "to make sure American people are safe and the traveling public are safe when they go to our airports. I think that better coordination with local law enforcement should help tremendously.
"However, having said that, it's very difficult to stop these types of attacks. Anybody can show up, as we saw in the Navy Yard with the shotgun." He was referring to the September attack at the Navy Yard in Washington.
"It's almost like an open shopping mall," he said, "so very difficult to protect."