RedactedNarrative: VESSEL 1 WAS TRAVELLING NORTH ON THE COLORADO RIVER, FOLLOWING VESSEL 2, PASSING HARRAHS.  THEY HAD JUST EXITED THE NO WAKE ZONE WHEN THE DRIVER OF VESSEL 1 WAS STRUCK BY A BUG AND BLINDED.  VESSEL 1 THEN STRUCK THE BACK OF VESSEL 2 CAUSING THE PASSENGER OF VESSEL 2 TO FALL OFF.