After LAX shooting, should TSA officers carry weapons?

(CBS News) Investigators in Los Angeles are focusing on the anti-government views of the man charged with killing a Transportation Security Administration officer. Officials say they still don't know why the suspect chose his target. Some observers say the officers should have been able to defend themselves.

Accused gunman Paul Ciancia is still in the hospital Tuesday, CBS News' Ben Tracy reported. His lawyer says he is unconscious and unable to speak after being shot in the face by LAX police on Friday. In a statement, Ciancia's family said they are shocked by the murder. Now, some are calling for TSA agents to carry guns.

The LAX shootings, as they happened

Tony Grigsby was one of two TSA officers shot on Friday that survived. He wanted to talk about his fellow officer who did not.

"Let me take one moment to express the sadness I feel in my heart over the loss of my friend, Gerardo Hernandez," Grigsby said. "Only now it has hit me that I will never see him again."

Grigsby says he was shot twice as he tried to help an elderly man escape accused shooter Ciancia's rampage.

According to newly released court documents, Ciancia's roommate dropped him off at terminal three in a "black Hyundai," the gunfire began just three minutes later. The affidavit says Ciancia was worried about the "new world order," a conspiracy theory about a totalitarian one-world government.

On Monday, FBI agents visited Ciancia's apartment near Los Angeles. They escorted one of his roommates to his car, also a black Hyundai.

Airport police and the TSA are now reviewing security procedures at Los Angeles International Airport. Airport Police Chief Patrick Gannon said: "As we work each and every day to make this airport and others safe, it's sad to say, but nothing will ever be 100 percent."

A memorial was held Monday night for Hernandez. The union that represents TSA officers called for some of those officers to carry guns. Currently, none are armed. David Borer, a TSA union lawyer, said, "We're not suggesting that all 45,000 TSA officers be armed. What we're suggesting is there needs to be another layer added, which would be Transportation Security Agency law enforcement officers, who would have law enforcement duties, would have a weapon, would have the ability to arrest people.

But the head of the airport police in Los Angeles says even if the TSA agent who was killed had a gun, it would not have mattered. Ciancia hid his gun inside his suitcase and pulled it out, firing at the agent at point-blank range.

Watch Ben Tracy's full report above.