(Detroit, OR)  --  Police say an 18-year-old, who was taken to a hospital after being pulled from the Detroit Lake reservoir, has died.  Authorities say Cody Ellingsworth was swimming with friends when he vanished around three p.m. Saturday.  Ellingsworth was quickly located and pulled from the reservoir, then airlifted to the hospital where he died yesterday.  Officials say the reservoir is currently well below normal levels, meaning river currents that would typically run 40 to 50 feet below the surface are now just under the surface.