A just-released parolee accused of evading security at Lindbergh Field and getting onto a Los Angeles-bound plane without a ticket is not mentally competent to stand trial on misdemeanor charges, a judge ruled Friday.
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Marc Rory Duncan, 38, will be treated at the psychiatric unit of the county jail for up to a year, said Superior Court Judge Howard Shore.
Criminal proceedings remain suspended against Duncan, who was charged May 31 with tampering with airport security devices, entering a restricted area and activating a security alarm without an emergency.
Duncan allegedly walked through an emergency door at the airport's Commuter Terminal about 11 a.m. May 29, crossed the tarmac and boarded a Sky West commuter jet along with several dozen passengers, according to Marguerite Elicone, a spokeswoman for the Port of San Diego.
Elicone said Duncan was able to somehow blend in with the ticketed passengers and get on the plane.
An alarm notified security personnel about the breach, Elicone said. As officers were en route to the tarmac, airport personnel contacted the pilot of the commuter aircraft, who directed a flight attendant to conduct a passenger head count.
When contacted by the cabin-crew member, Duncan was cooperative and immediately debarked. Security personnel arrested him outside the plane without incident, Elicone said, adding that the suspect was in custody six minutes after the emergency alarm sounded.
The parolee told the officers he had sneaked onto the aircraft in an attempt to "get home," the spokeswoman said.
The 27 ticketed passengers on the flight were taken off the plane to allow for a security sweep before the flight was cleared to proceed.
Authorities said Duncan had been released from jail the previous day following a stint for theft.
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