(Portland, OR)  --  A man who owns a pickup truck involved in a hit-and-run that seriously injured a pedestrian could face charges.  Multnomah County sheriff's deputies say 67-year-old Charles Francis Gillespie of Happy Valley turned himself in yesterday.  Thirty-three-year-old Dorena Hernandez was hit as she was crossing at the intersection of Foster and 172nd Avenue late Sunday night.  She's being treated for serious injuries but is expected to survive.  Gillespie was released, pending charges.