Guard at airport denies burglaries

A parking security guard at San Francisco International Airport has pleaded not guilty to burglarizing cars on his watch.

Andrew Ridley, 24, is charged with two counts each of burglary of a vehicle and grand theft property, in addition to one count each of possession of a switch-blade knife and possession of burglary tools. Prosecutors said he pleaded not guilty to all the charges Thursday in San Mateo County Superior Court.

Prosecutors have accused Ridley of stealing laptop computers, navigation devices, cellphones and cameras from vehicles while he patrolled the airport parking garage at night.