(Sandy, OR)  --  A Portland man is facing multiple charges, following a bank holdup in Sandy.  Bail has been set at a half-million dollars for 21-year-old Aaron Larson, who police say carjacked a woman around noon yesterday, robbed a US Bank branch at gunpoint, and crashed the stolen SUV afterward.  Officials say Larson then fled the SUV on foot and managed to lose a good portion of the money he stole.  He's been booked into the Clackamas County Jail.