RedactedNarrative: Vessel 1, a 215 encore pontoon boat, was drifting in the area just south of crazy horse cove, in the north basin of lake havasu.  Occupant jumped from the vessel voluntarily and began swimming near the boat.  After several minutes, she began to struggle in the water, so her husband jumped in to help her.  During this time she was panicking severely.  It is believed that she grabbed hold of her husband as he was attempting to help her, and they both dropped below the water''s surface and drowned.  
  
  During this incident, the vessel involved was not running, but was not at anchor or aground.