(Portland, OR)  --  One man is dead and his teenage son is presumed dead after they were swept into the ocean at Rockaway Beach.  Police say the 17-year-old son was boogie boarding yesterday when a wave knocked him off his board, prompting his 50-year-old father to run into the water to try to rescue him.  The teen's stepmother called for help after the two failed to resurface.  A Coast Guard crew later recovered the father's body from the surf.  Search efforts are resuming this morning for the missing teen.