(Portland, OR) -- Two people are facing charges in connection to an armed robbery in Troutdale. Police arrested Joshua Vaughn Miller and Sandra Dee Miller early yesterday morning following a brief car chase on Interstate 84. Police say the two entered the Safeway gas station on Cherry Park Road wearing masks and armed with a knife and a gun on Sunday and robbed the attendants. Police later found their car abandoned on Southeast Bull Run Road in Clackamas County and used a K-9 unit to track them down and arrest them.