Are flights operating, and from all terminals?
Yes, flights were back up and flying from all terminals, including Terminal 3, by the end of day on Saturday. Travelers should proceed to check-in for flights, and security, and to their gates and lounges like normal. There are no residual emergency-related delays of any sort.
How's traffic, and are the freeway ramps to/from the airport reopened?
Access to the airport was one of the first things reinstated once the crime scene was cleared. The 105 and 405 freeway ramps leading to/from LAX had been closed during the ordeal and used for evacuation of the terminals, but all was back to normal with the LA-usual traffic by early Saturday, November 2, just 24 hours later.
Who was the shooter?
The shooting, which injured four people and killed TSA agent Gerardo Hernandez, was done by 23-year-old Paul Ciancia. Wounded by law enforcement but captured alive, Ciancia is in custody but in the hospital. He has been charged with murdering a federal officer and committing violence at an international airport, crimes punishable by either life in prison or the death penalty.
Immediately after the emergency, LA-area airports increased security and instituted vehicle checks for cars on airport property, even if they were only there a moment to drop off a traveler. While that strict move has ended, security within LAX and nearby airports has increased, and TSA agents will likely be on their highest alert for some time, considering they lost one of their own (the first TSA agent killed in the line of duty). Please plan to arrive a little earlier than normal to account for longer security wait times, and be ready with extra reserves of patience.
We traveled through Detroit Airport on Saturday, 24 hours after the event at LAX, and found airport security operating normally. All TSA agents were at their posts, but there were no armed backup guards or anything like that. It was business as usual, a status which LAX is striving to return to as soon as possible.