(Manzanita, OR)  --  An Oregon State University student is dead after falling off a popular viewpoint along the Oregon coast.  The Tillamook County Sheriff's Office says 21-year-old Michelle Casey was taking pictures at a mountain near Manzanita when she climbed over a barrier and fell Sunday.  Deputies say Casey landed in a tree, which kept her from falling into the ocean.  It took two hours for rescuers to reach her and she was unconscious but still breathing.  She was pronounced dead later at the hospital.