RedactedNarrative: Vessel was fishing trolling east in the Gulf of Mexico heading approx 300 yards off beach.  The motor was not running correctly and then cut off.  A wave hit the starboard side of vessel causing the vessel to spin with the bow aimed toward the beach.  Another wave hit the vessel on the stern and came inside the vessel.  Continuous waves hitting and entering inside the vessel caused the vessel to swamp and capsize.  Vessel ultimately washed up on the beach.