LOS ANGELES - The family of the man charged with a deadly shooting frenzy at Los Angeles International Airport said on Monday they have fully cooperated with investigators and expressed sympathy for relatives of the security agent slain in the rampage.
The statement from the parents of Paul Anthony Ciancia, 23, was issued by a lawyer in the suspect's hometown of Pennsville, New Jersey, who has known the family for a long time and was asked by the father to act as an intermediary with the media.
The lawyer, John Jordan, said he was not acting as the suspected gunman's attorney and did not know anything about Ciancia's legal representation.
Ciancia remained hospitalized under round-the-clock security on Monday in critical condition at the Ronald Reagan UCLA Medical Center in Los Angeles, where he was reported by local media to be unresponsive and under heavy sedation.
The US Federal Bureau of Investigation, which is leading the probe, declined to comment on details of its investigation or Ciancia's condition.
But a law enforcement official with knowledge of the case said that as of Sunday, FBI agents were still unable to question Ciancia, who was reported to have sustained four gunshot wounds, including one to his head.
Ciancia, described by the law enforcement source as unemployed, was charged on Saturday with murder of a federal officer and committing violence at an international airport, offences for which he could face the death penalty if convicted.
He is accused of waking into Terminal 3 at the sprawling airport, known as LAX, on Friday morning and opening fire with an assault-style rifle at the entrance to the security checkpoint, killing a Transportation Security Administration officer.
Authorities said the gunman continued past metal detectors and stalked the passenger boarding area, shooting and wounding two other TSA employees and an airline passenger, before he was shot and wounded. He was taken into custody by airport police near the terminal gate.
The shooting triggered pandemonium in the terminal as passengers and employees ran frantically for cover, and at least two other people were hurt in the ensuing stampede, the FBI said.
Flight traffic throughout the airport, the world's sixth busiest, was severely disrupted through much of the weekend, causing a ripple effect of delays around the country.