Los Angeles (CNN/WSYR-TV) - The U.S. Attorney's Office said 23-year-old Paul Ciancia has been charged with two felonies, murder of a federal officer and commission of violence in an international airport.
Ciancia is the suspect in Friday's shooting at Los Angeles International Airport.
Investigators said Ciancia pulled a rifle out of his bag, shot a Transportation Security Administration officer, walked away, then came back to shoot him again, a federal prosecutor said Saturday.
The TSA officer, Gerardo Hernandez, died of his wounds.
Ciancia is unresponsive while being treated at a hospital after he was shot by airport police. FBI investigators have not been able to interview him.
If convicted of the two felony charges, he would face life in prison without parole or the death penalty, according to the federal prosecutor.
The U.S. attorney general would decide if a death sentence would be sought.
Four other people are recovering from gunshot wounds suffered in Friday morning's shooting.
They included two other TSA officers and one "civilian", according to the FBI.