RESCUERS on Wednesday morning located the body of John F. Kennedy Jr. in waters off the coast of Massachusetts. Kennedy’s body is apparently still aboard the wreckage of his plane, but the bodies of Caroline Bessette-Kennedy and her sister, Lauren Bessette, have yet to be found. The fuselage will apparently be raised from the ocean floor and deposited on board the USS Grasp. Ships from the Navy, Coast Guard and National Oceanographic and Atmospheric Administration spent Tuesday night scouring a site 12 kilometers southwest of the Martha’s Vineyard coast, a spot that investigators had speculated was the likely splash point for the plane.