A woman entered the AM/PM on Oro Dam Boulevard around 4 am Thursday when she allegedly threatened the clerk with a knife and an hypodermic needle. The suspect, indentified as 30-year-old Allyson Carper allegedly took three candy bars and a soda. Carper reportedly laughed and told the clerk to "Call the police and tell them I robbed you" as she fled from the business. Officers searched the area and found Carper behind Raley's where she was arrested for robbery.