(Portland, OR)  --  Police say they've arrested one suspect and are searching for a second in connection to a vehicle theft and assault in north Portland.  Police arrested 24-year-old Nicole Penagos-Clare Saturday night for the incident last Wednesday at a tow yard off North Kerby Avenue.  Police say she and a second suspect broke into the tow yard and stole a Ford F150.  They then allegedly ran over an employee at the tow yard while fleeing.  The employee suffered serious injuries but is expected to recover.