(Portland, OR)  --  Police are seeking the public's help in their search for a hit-and-run suspect who left one woman dead in northwest Portland.  The Portland Police Bureau says 54-year-old Stephanie Diane Marcott was killed in the incident near Northwest 9th Avenue and Northwest Glisan Street on November 11th.  Police believe Marcott was a passenger in a vehicle when she jumped out of the moving car and was run over by it.  The driver allegedly kept going.  It's not yet clear why Marcott jumped out of the moving vehicle.  Crime Stoppers of Oregon is offering a reward of 25-hundred dollars for information leading to an arrest.